Danfoss Gear Motors User guide

Technical Information

Gear Motors

Group 1, 2, and 3

www.danfoss.com

Technical Information

G

ear Motors Group 1, 2, and 3

Revision history Table of revisions

Date Changed Rev

July 2021 Minor corrections to data made 0102

October 2019 First edition 0101

2 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Contents

General information

Overview..............................................................................................................................................................................................

Features and benefits..................................................................................................................................................................... 7

Motor displacements...................................................................................................................................................................... 7

Determination of nominal motor size.......................................................................................................................................8

System Requirements

Pressure................................................................................................................................................................................................9

Speed....................................................................................................................................................................................................9

Hydraulic Fluids.............................................................................................................................................................................. 10

Temperature and Viscosity.........................................................................................................................................................10

Filtration............................................................................................................................................................................................ 11

Line sizing-x..................................................................................................................................................................................... 12

Motor shaft connection............................................................................................................................................................... 12

Motor shaft load data form........................................................................................................................................................ 13

Motor Life..........................................................................................................................................................................................13

Group 1 Gear motors

Motor design................................................................................................................................................................................... 14

Technical data................................................................................................................................................................................. 15

Model code.......................................................................................................................................................................................15

Motor performance graphs........................................................................................................................................................19

Flange, shaft and port configurations....................................................................................................................................22

Shaft options....................................................................................................................................................................................22

Integral relief value - SKM1IN.....................................................................................................................................................23

Ports dimensions............................................................................................................................................................................26

Dimensions.......................................................................................................................................................................................27

Group 2 Gear motors

Motor design................................................................................................................................................................................... 31

Technical data................................................................................................................................................................................. 32

Model code.......................................................................................................................................................................................33

5

Filters.............................................................................................................................................................................................11

Selecting a filter.........................................................................................................................................................................11

Reservoir...................................................................................................................................................................................... 11

A Family........................................................................................................................................................................................15

B Displacement..........................................................................................................................................................................16

C Rotation....................................................................................................................................................................................16

D Project version ......................................................................................................................................................................16

E Mounting flange....................................................................................................................................................................16

F Drive Gear................................................................................................................................................................................ 16

G Rear cover................................................................................................................................................................................17

H Inlet size; I Outlet size..........................................................................................................................................................17

J Ports Pos & Spec Body..........................................................................................................................................................18

K Seals........................................................................................................................................................................................... 18

L Screws........................................................................................................................................................................................18

M Set valves................................................................................................................................................................................ 18

N Type of mark...........................................................................................................................................................................19

O Mark position.........................................................................................................................................................................19

Variant codes for ordering intergral relief valve............................................................................................................24

SKM1NN, SKU1NN, SNU1NN – 01BA..................................................................................................................................28

SKM1NN, SKU1NN – 02BB, 02FA......................................................................................................................................... 29

SKM1NN, SKU1NN – 06GA and 06SA.................................................................................................................................30

SNM2NN.......................................................................................................................................................................................31

SNU2NN....................................................................................................................................................................................... 31

SKU2NN........................................................................................................................................................................................32

A Family........................................................................................................................................................................................33

B Displacement..........................................................................................................................................................................34

C Rotation....................................................................................................................................................................................34

D Project version ......................................................................................................................................................................35

E Mounting flange....................................................................................................................................................................35

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Danfoss | July 2021 BC319483612502en-000102 | 3

Technical Information

G

ear Motors Group 1, 2, and 3

Contents

Motor performance graphs........................................................................................................................................................40

Flange, shaft and port configurations....................................................................................................................................42

Shaft options....................................................................................................................................................................................43

Port dimensions..............................................................................................................................................................................44

Integral relief valve - SNM2IN.................................................................................................................................................... 46

Anti-cavitation check valve - SNM2GN...................................................................................................................................49

Integral relief valve and anti-cavitation check valve - SNM2JN.................................................................................... 49

Outrigger bearing assembly - SNM2NN................................................................................................................................ 50

Dimensions.......................................................................................................................................................................................55

Group 3 Gear motors

Motor design................................................................................................................................................................................... 60

Technical data................................................................................................................................................................................. 61

Model code.......................................................................................................................................................................................62

Motor performance graphs........................................................................................................................................................67

Flange, shaft, and port configurations...................................................................................................................................70

Shaft and flange availability.......................................................................................................................................................71

Ports dimensions............................................................................................................................................................................72

Anti-cavitation check valve - SNM3GN...................................................................................................................................75

Dimensions.......................................................................................................................................................................................76

F Drive gear.................................................................................................................................................................................35

G Rear cover................................................................................................................................................................................

H Inlet size; I Outlet size..........................................................................................................................................................37

J Ports pos & Spec body......................................................................................................................................................... 38

K Seals........................................................................................................................................................................................... 38

L Screws........................................................................................................................................................................................38

M Set valves................................................................................................................................................................................ 38

N Type of mark...........................................................................................................................................................................39

O Mark position.........................................................................................................................................................................39

Variant codes for ordering intergral relief valve............................................................................................................47

Allowable shaft loads.............................................................................................................................................................. 51

Outrigger bearings 9A, 94, 9J, 9F, and 9H .......................................................................................................................53

Dimensions............................................................................................................................................................................54

SNM2NN, SNU2NN – 01DA, 01FA and 01BA...................................................................................................................55

SNM2NN, SNU2NN – 02DB and 02AA............................................................................................................................... 56

SNM2NN, SNU2NN – 03CA....................................................................................................................................................57

SNM2NN, SNU2NN–04DB/05DB and 04AA/05AA........................................................................................................ 58

SNM2NN, SNU2NN, SKU2NN – 06SA, 06GA.................................................................................................................... 59

SNM3NN.......................................................................................................................................................................................60

SNU3NN....................................................................................................................................................................................... 61

A Family........................................................................................................................................................................................62

B Displacement..........................................................................................................................................................................63

C Rotation....................................................................................................................................................................................63

D Project version (value representing a change to the initial project)................................................................. 63

E Mounting flange....................................................................................................................................................................63

F Drive Gear................................................................................................................................................................................ 64

G Rear Cover...............................................................................................................................................................................64

H Inlet size; I Outlet size..........................................................................................................................................................64

J Ports pos & Spec body......................................................................................................................................................... 65

K Seals........................................................................................................................................................................................... 66

L Screws........................................................................................................................................................................................66

M Set valves................................................................................................................................................................................ 66

N Type of mark...........................................................................................................................................................................66

O Mark position.........................................................................................................................................................................66

SNM3NN, SNU3NN – 01FA, 01DA and 01BA...................................................................................................................76

SNM3NN, SNU3NN – 02FA, 02DB and 02AA...................................................................................................................77

SNM3NN, SNU3NN – 03FB and 03BB.................................................................................................................................78

SNM3NN, SNU3NN – 06AA....................................................................................................................................................79

SNM3NN, SNU3NN – 07BC, 07SA and 07GA................................................................................................................... 80

36

4 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

General information

Overview

The DanfossGear Motors is a range of peak performance fixed displacement hydraulic motors available in
three different frame sizes: Group 1, Group 2, and Group 3, all as uni- and bidirectional version.

Constructed of a high strength extruded aluminum body with aluminum rear cover and aluminum front
flange, all motors are balanced for exceptional efficiency and designed to ensure an excellent starting
torque and, in the bidirectional version, to guarantee the ability to work with high back pressure and
extremely low system pressure.

The flexibility of the range in each frame size combined with the high efficiency and low starting torque
makes the Danfoss Gear Motors ideal for a wide range of applications sectors including on- and off­highway hydraulic fan drive systems, turf care, road bildge, fork lifts and municipal.

All the unidirectional motors have the same construction of the correspondent pump as well but, with
inlet and outlet positioned at the opposite side for the same rotation.

Some representatives of gear motors

SKM1NN 06SA

SNM2NN9JDB

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Danfoss | July 2021 BC319483612502en-000102 | 5

Technical Information

G

ear Motors Group 1, 2, and 3

General information

SNM3NN01BA

SNU2NN 06SA

SNM3NL 07SA

6 | © Danfoss | July 2021 BC319483612502en-000102

300

250

200

150

100

50

0

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95

SKU1NN

SNU1NN

SKU2NN

SNU2NN

SNU3NN

Rated pressure

bar

Displacement cm3/rev

Technical Information

G

ear Motors Group 1, 2, and 3

General information

SNU2NN 06GB

Features and benefits

•

•

•

•

•

•

•

•

Three groups of frame sizes (Group 1, 2 and 3)
Displacements from 2.6 to 90 cm3/rev [from 0.158 to 5.49 in3/rev]
Available in uni- and bidirectional version for all the frame sizes, displacements and configurations
Rated pressure up to 250 bar [3625 psi]
Back pressure capability up to 250 bar [3625 psi]
Speeds up to 4000 min-1 (rpm) for Group 1 and 2, and up to 2500 min-1 (rpm) for Group 3
SAE, ISO and DIN mounting flanges and shafts
Available with integrated relief valve in the Group 2 frame size and integrated anti-cavitation valve in

Group 2 and Group 3 frame sizes

Motor displacements

Quick reference chart for unidirectional motor models (Group 1, 2 and 3)

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Danfoss | July 2021 BC319483612502en-000102 | 7

300

250

200

150

100

50

0

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95

Displacement cm3/rev

SKM1NN

SNM2NN

SNM3NN

Rated pressure bar

Vg • n

1000 •

v

Qe =

Vg • p •

mh

20 •

Me =

Qe • p •

t

600

=

Me • n

9550

Pe=

n =

Qe • 1000 •

v

V

g

Vg • n

231 •

v

Qe =

Vg • p •

mh

2 •

Me =

Vg • n • p •

t

396 000

Pe=

n =

Qe • 231 •

v

V

g

Technical Information

G

ear Motors Group 1, 2, and 3

General information

Quick reference chart for bidirectional motor models (Group 1, 2 and 3)

Determination of nominal motor size

Based on SI units Based on US units

Where:

Q

Input flow (l/min)

e

M

Output torque (N•m)

e

P

Output power (kW)

e

n Speed (min-1)
V

Motor displacement per rev. (cm3/rev)

g

p

High pressure (bar)

high

p

Low pressure (bar)

low

∆p High pressure minus Low pressure (bar)
η

Motor volumetric efficiency

v

η

Mechanical-hydraulic efficiency

mh

η

Motor total efficiency (ηv • ηmh)

t

Where:

Q

Input flow [US gal/min]

e

M

Output torque [lb•in]

e

P

Output power [hp]

e

n Speed [rpm]
V

Motor displacement per rev. [in3/rev]

g

p

High pressure [psi]

high

p

Low pressure [psi]

low

∆p High pressure minus Low pressure [psi]
η

Motor volumetric efficiency

v

η

Mechanical-hydraulic efficiency

mh

η

Motor total efficiency (ηv • ηmh)

t

8 | © Danfoss | July 2021 BC319483612502en-000102

Peak pressure

Rated pressure

Reaction time (100 ms max)

Time

Pressure

Technical Information

G

ear Motors Group 1, 2, and 3

System Requirements

Pressure

Peak pressure is the highest intermittent pressure allowed.
The relief valve overshoot (reaction time) determines peak pressure. It is assumed to occur for less than

100 ms.
The illustration to the right shows peak pressure in relation to rated pressure and reaction time (100 ms

maximum).
Rated pressure is the average, regularly occurring operating inlet pressure that should yield satisfactory

product life. The maximum machine load at the motor shaft determines rated pressure

Speed

System pressure is the differential between the inlet and outlet ports. It is a dominant operating variable
affecting hydraulic unit life. High system pressure, resulting from high load at the motor shaft, reduces
expected life. System pressure must remain at, or below, rated pressure during normal operation to
achieve expected life.

Back pressure is the average, regularly occurring operating outlet pressure that should yield satisfactory
bidirectional motor life. The hydraulic load demand downstream of the motor determines the back
pressure. Unidirectional motors cannot work with back pressure and the maximum back pressure
allowed is 5 bar [72 psi] rated and 7 bar [101 psi ] as peak.

Case Drain Pressure is the regularly occurring case drain line pressure that should yield satisfactory
bidirectional motor life. It is recommended to design the case drain piping connecting the case drain
direct to the tank in order to keep the case drain pressure as low as possible. The max. continuous case
drain pressure allowed is 5 bar [72 psi] rated and 7 bar [101 psi] as peak.

Maximum speed is the limit recommended by Danfoss for a particular gear motor when operating at
rated pressure. It is the highest speed at which normal life can be expected.

The lower limit of operating speed is the minimum speed. It is the lowest speed at which normal life can
be expected.

The minimum speed increases as operating system pressure increases. When operating under higher
pressures, a higher minimum speed must be maintained, as illustrated below.

©

Danfoss | July 2021 BC319483612502en-000102 | 9

Rated

P

1

Pressure

0

N MaxN

2

Speed

Operating
envelope

1

C

Technical Information

G

ear Motors Group 1, 2, and 3

System Requirements

Speed versus pressure

Where:
N1 = Minimum speed at 100 bar
N2 = Minimum speed at rated pressure

Hydraulic Fluids

Temperature and Viscosity

Ratings and data for gear motors are guaranteed when the hydraulic system operates with premium
hydraulic fluids without containing oxidation, rust, or foam inhibitors.

These fluids have to work with good thermal and hydrolytic stability to prevent wear, erosion, or
corrosion of internal components. They include:

•

Hydraulic fluids following DIN 51524, part 2 (HLP) and part 3 (HVLP) specifications

•

API CD engine oils conforming to SAE J183

•

M2C33F or G automatic transmission fluids

•

Certain agricultural tractor fluids

Caution

Use only clean fluid in the gear motors and hydraulic circuit. Never mix hydraulic fluids.

Temperature and viscosity requirements must be concurrently met. Use of petroleum/mineral-based
fluids is highly recommended.

High temperature limits apply at the inlet port of the motors. The motors should operate at or below the
maximum continuous temperature. The peak temperature is based on material properties.

Don’t exceed it.
Minimum (cold start) temperature relates to the physical properties of component materials.

Cold oil, generally, doesn’t affect the durability of motors components. It may affect the ability of oil to

10 | © Danfoss | July 2021 BC319483612502en-000102

flow and transmit power. For this reason, keep the temperature at 16°C [60 °F] above the pour point of
the hydraulic fluid.

Technical Information

G

ear Motors Group 1, 2, and 3

System Requirements

Temperature limits (with standard NBR seals)

Minimum viscosity occurs only during brief occasions of maximum ambient temperature and severe
duty cycle operation.

Maximum viscosity occurs at cold start only. During this condition, limit speeds until the system warms
up.

•

•

•

Fluid viscosity limits, in mm2/s [SUS]

Minimum (cold start) Maximum continuous Peak (intermittent)

-20°C [-4°F] 80°C [176°F] 90°C [194°F]

Size heat exchangers to keep the fluid within these limits
Test regularly to verify that these temperatures and viscosity limits aren’t exceeded
Keep the fluid viscosity in the recommended viscosity range for maximum unit efficiency and bearing

life

Maximum (cold start) Recommended range Range for high efficiency Minimum

1600 [7273] 12-100 [66-456] 20-50 [97-231] 10 [60]

Filtration

Filters

Use a filter that conforms to Class 22/18/13 of ISO 4406 (or better). It may be on the motor outlet
(discharge filtration) or inlet (pressure filtration).

Selecting a filter

When selecting a filter, please consider:

•

Contaminant ingression rate (determined by factors such as the number of actuators used in the
system)

•

Generation of contaminants in the system

•

Required fluid cleanliness

•

Desired maintenance interval

•

Filtration requirements of other system components

Measure filter efficiency with a Beta ratio (βX). βx ratio is a measure of filter efficiency defined by ISO 4572.
It is the ratio of the number of particles greater than a given diameter (in microns) upstream of the filter
to the number of these particles downstream of the filter.

•

For discharge filtration with controlled reservoir ingression, use a β

•

For pressure filtration, use a filtration with an efficiency of β10 = 75

The filtration requirements for each system are unique. Evaluate filtration system capacity by monitoring
and testing prototypes.

Fluid cleanliness level and βX ratio

Fluid cleanliness level (per ISO 4406)
βX ratio (discharge filtration)
βX ratio (pressure or return filtration)
Recommended inlet screen size

Class 22/18/13 or better

β

= 75 and β10 = 2

35-45

β10 = 75

100 – 125 μm [0.004 – 0.005 in]

35-45

= 75 filter

Reservoir

The reservoir provides clean fluid, dissipates heat, removes entrained air, and allows fluid volume
changes associated with fluid expansion and cylinder differential volumes. A correctly sized reservoir

©

Danfoss | July 2021 BC319483612502en-000102 | 11

Pilot cavity

Ø 0.1 [0.004]

Mating spline

Technical Information

G

ear Motors Group 1, 2, and 3

System Requirements

accommodates maximum volume changes during all system operating modes. It promotes de-aeration
of the fluid as it passes through, and accommodates a fluid dwell-time between 60 and 180 seconds,
allowing entrained air to escape.

Minimum reservoir capacity depends on the volume required to cool and hold the oil from all retracted
cylinders, allowing for expansion due to temperature changes. A fluid volume of 1 to 3 times the pump
output flow (per minute) is satisfactory. The minimum reservoir capacity is 125% of the fluid volume.

Install the suction line above the bottom of the reservoir to take advantage of gravity separation and
prevent large foreign particles from entering the line. Cover the line with a 100-125 micron screen. The
pump should be below the lowest expected fluid level.

Put the return-line below the lowest expected fluid level to allow discharge into the reservoir for
maximum dwell and efficient deaeration. A baffle (or baffles) between the return and suction lines
promotes deaeration and reduces fluid surges.

Line sizing-x

Choose pipe sizes that accommodate minimum fluid velocity to reduce system noise, pressure drops, and
overheating. This maximizes system life and performance.

Design inlet piping that maintains continuous pump inlet pressure above 0.8 bar absolute during normal
operation. The line velocity should not exceed the values in the table below:

Motor shaft connection

Maximum line speed

Inlet Outlet Return

5 m/s [16.4 ft/sec] 2.5 m/s [8.2 ft/sec] 3 m/s [9.8 ft/sec]

Most systems use hydraulic oil containing 10% dissolved air by volume.
Over-aeration, or entrained air is the result of flow line restrictions, where the dissolved air comes out

of solutions, or when air is allowed to leak into the hydraulic circuit. These include inadequate pipes size,
sharp bends, or elbow fittings causing a reduction of flow-line cross-sectional area. This problem will not
occur if these circuit recommendations are followed, rated speed requirements are maintained, and
reservoir size and location are adequate.

Shaft options for gear motors include tapered, splined, and parallel shafts.
Plug-in drives, with a splined shaft, can impose severe radial loads when the mating spline is rigidly

supported. Increasing spline clearance does not alleviate this condition.
Use plug-in drives only if the concentricity between the mating spline and pilot diameter is within 0.1

mm [0.004 in]. Lubricate the drive by flooding with oil. A three-piece coupling minimizes radial or thrust
shaft loads.

Motor shaft connection

12 | © Danfoss | July 2021 BC319483612502en-000102

a

90

o

α

0

o

270

o

180

o

Inlet port

Axial load
(A

L

)

Radial load (RL)

RL

Technical Information

G

ear Motors Group 1, 2, and 3

System Requirements

To avoid spline shaft damage, use carburized and hardened steel couplings with 80-82 HRA surface
hardness.

Motor shaft load data form

Photocopy this page and fax the complete form to your Danfoss representative for an assistance. This
illustration shows a motor with counterclockwise orientation:

Motor Life

Application data

Item Value Based on SI or US units

Motor displacement □ cm3/rev □ in3/rev
Rated system pressure □ bar □ psi
Peak pressure
Motor shaft rotation □ left □ right
Motor minimum speed
Motor maximum speed
Radial load R
Angular orientation of radial load to inlet port α degree
Axial load A
Distance from flange to radial load a □ mm □ in

1

1

min-1 (rpm)

□ N □ lbf

□ N □ lbf

Motor life is a function of speed, system pressure, and other system parameters (such as fluid quality and
cleanliness).

All Danfoss gear motors use hydrodynamic journal bearings that have an oil film maintained between the
gear/shaft and bearing surfaces at all times. If the oil film is sufficiently sustained through proper system
maintenance and operating within recommended limits, long life can be expected.

High pressure impacts motor life. When submitting an application for review, provide machine duty cycle
data that includes percentages of time at various loads and speeds.

B10 life expectancy number is generally associated with rolling element bearings. It does not exist for
hydrodynamic bearings.

Danfoss strongly recommends a prototype testing program to verify operating parameters and their
impact on life expectancy before finalizing any system design.

©

Danfoss | July 2021 BC319483612502en-000102 | 13

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Motor design

SKM1NN

SKM1NN is the Group 1 bidirectional motor available in the whole displacements range from 2.6 up to 12
cm3/rev [from 0.158 up to 0.732 in3/ rev].

Configurations include European and SAE flanges and shafts (Code 01BA, 02BB, 02FA, 06GA, 06SA).

SKM1NN 06SA

SKU1NN

SKU1NN is a Group 1 unidirectional motor available in the whole displacements range from 2.6 up to 12
cm3/rev [from 0.158 up to 0.732 in3/rev]. The SKU1NN motor construction is derived from the
correspondent pump SKP1NN.

Configurations include European and SAE flanges and shafts (Code 01BA, 02BB, 02FA, 06GA, 06SA).

SNU1NN

SNU1NN is a Group 1 unidirectional motor available in a limited displacements range from 2.6 up to 7.8
cm3/rev [from 0.158 up to 0.464 in3/rev]. The SNU1NN motor construction is derived from the
correspondent pump SNP1NN. Configurations include European flange and shaft (Code 01BA).

SNU1NN 01BA (cut-away)

14 | © Danfoss | July 2021 BC319483612502en-000102

C

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Technical data

Displacement cm3/rev [in3/rev]

SKM1NN (a standard, bidirectional motor)

Peak pressure

Rated pressure

Back pressure

Minimum speed min-1 (rpm) 1000 1000 1000 800 800 800 800 800
Maximum speed 4000 4000 3000 3000 2000 2000 2000 2000

SKU1NN (a standard, unidirectional motor)

Peak pressure

Rated pressure

Minimum speed min-1 (rpm) 1000 1000 1000 800 800 800 800 800
Maximum speed 4000 4000 3000 3000 2000 2000 2000 2000

SNU1NN (a standard, unidirectional motor)

Peak pressure

Rated pressure

Minimum speed min-1 (rpm) 1000 1000 1000 800 800 800
Maximum speed 4000 4000 3000 3000 2000 2000

All

Weight kg [lb]

Moment of inertia of rotating
components

Frame size
2,6 3,2 3,8 4,3 6,0 7,8 010 012

2.62
[0.158]

bar [psi] 270

[3915]
250

[3625]
250

[3625]

bar [psi] 270

[3915]
250

[3625]

bar [psi] 270

[3915]
250

[3625]

1.02
[2.26]

x 10-6 kg•m2
[x 10-6 lbf•ft2]

5.1
[121.0]

3.14
[0.195]

270
[3915]

250
[3625]

250
[3625]

270
[3915]

250
[3625]

270
[3915]

250
[3625]

1.14
[2.51]

5.7
[135.2]

3.66
[0.231]

270
[3915]

250
[3625]

250
[3625]

270
[3915]

250
[3625]

270
[3915]

250
[3625]

1.18
[2.60]

6.4
[151.9]

4.19
[0.262]

270
[3915]

250
[3625]

250
[3625]

270
[3915]

250
[3625]

270
[3915]

250
[3625]

1.20
[2.65]

7.1
[168.5]

5.89
[0.366]

250
[3625]

230
[3335]

230
[3335]

250
[3625]

230
[3335]

190
[2755]

170
[2465]

1.30
[2.87]

9.3
[220.7]

7.59
[0.463]

220
[3190]

200
[2900]

200
[2900]

220
[3190]

200
[2900]

180
[2610]

160
[2320]

1.39
[3.06]

11.4
[270.5]

9.94
[0.607]12[0.732]

180

150

[2610]

[2175]

160

130

[2320]

[1895]

160

130

[2320]

[1895]

170

140

[2465]

[2030]

150

120

[2175]

[1740]

–

1.55

1.65

[3.42]

[3.64]

14.6

17.1

[339.4]

[405.8]

1 kg•m2 = 23.68 lb•ft

2

Caution

The rated and peak pressure mentioned are for motors with flanged ports only. When threaded ports are
required a derated performance has to be considered. To verify the compliance of an high pressure
application with a threaded ports pump apply to a Danfoss representative.

Model code

A Family

A B C D E F G H I J K L M N O

● ● ● ● ● ● /

©

Danfoss | July 2021 BC319483612502en-000102 | 15

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

SNU1NN
SKU1NN
SKM1NN
SKM1IN

Unidirectional gear motor

High torque unidirectional gear motor

Bidirectional gear motor

Bidirectional gear motor with relief valve

B Displacement

A B C D E F G H I J K L M N O

2,6
3,2
3,8
4,3
6,0
7,8
010
012

2.62 cc

3.14 cc

3.66 cc

4.19 cc

5.89 cc

7.59 cc

9.94 cc

12.0 cc

C Rotation

A B C D E F G H I J K L M N O

● ● ● /

● /

L
R
B

Left (Counterclockwise)

Right (Clockwise)

Bidirectional

D Project version

A B C D E F G H I J K L M N O

N

Std Version of Project

E Mounting flange

A B C D E F G H I J K L M N O

01
02
06

European 4 bolt flange with pilot Ø25,4 mm

European 4 bolt flange with pilot Ø30 mm

SAE A-A 2 bolt flange with pilot Ø50,8 mm

F Drive Gear

A B C D E F G H I J K L M N O

● /

● ● /

● ● /

16 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

BA
BB
FA
GA
SA

G Rear cover

A B C D E F G H I J K L M N O

P1
M1
M2
M3
M6
MH
I1
L6
V1

Taper 1:8-M7-Key2,41 SKP1

Taper 1:8-M10x1-Key 3

Parallel Ø12-Thread M10x1-Key 3

Parallel Ø12,7-Key 3,2

SAE spline J498-9T-20/40 Flat Root Side FIT-L15

● ● /

Standard cover for unidirectional motors

Standard cover for motors drain M12x1,5

Cover with drain 1/8" Gas

Cover with drain 1/4" Gas

Cover with drain 7/16-20UNF-2B

Cover with drain M12x1,5 ISO6149

Cover for unidirectional motors with relief valve

Cover motor with side drain in vertical axis 7/16-20UNF-2B

Cover for bidirectional motors with relief valve with drain 1/4 Gas

H Inlet size; I Outlet size

A B C D E F G H I J K L M N O

B2

C1
C2

C3

D3
D5
D7

13x30xM6

8x26xM5

12x26xM5

13,5x30xM6

M14x1,5

M18x1,5

M22x1,5

● ● ● ● /

©

Danfoss | July 2021 BC319483612502en-000102 | 17

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

E3
E4

E5

F2
F3
F4

H2
H4
H5
H7

9/16-18UNF

3/4-16UNF

7/8-14UNF

1/4 GAS

3/8 GAS

1/2 GAS

10xM12x1,5-ISO6149

12xM16x1,5-ISO6149

12xM18x1,5-ISO6149

13,5xM22x1, 5-ISO6149

J Ports Pos & Spec Body

A B C D E F G H I J K L M N O

● ● /

N

Std from catalog

K Seals

A B C D E F G H I J K L M N O

N
H

Standard NBR seal

VITONseals + special backing ring - special for SKU1NN

L Screws

A B C D E F G H I J K L M N O

N
B

Std screws

GEOMET screws - Anticorrosion screws

M Set valves

A B C D E F G H I J K L M N O

NNN

*

V

*

For details, see Variant codes for ordering intergral relief valve on page 24.

No valve

Integralrelief valve pressure setting

● /

● /

/ ● ● ●

18 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

N Type of mark

A B C D E F G H I J K L M N O

/ ●

Motor performance graphs

N
A
Z

Standard Danfoss Marking

Standard Danfoss Marking+Customer Code-Special

Without Marking

O Mark position

A B C D E F G H I J K L M N O

/ ●

N
A

Std Marking position (on top)

Special Marking position on the bottom

The following graphs provide typical inlet flow and output torque for Group 1 motors at various working
pressures. Data were taken using ISO VG46 petroleum /mineral based fluid at 50 °C [122 °F] (viscosity = 28
mm2/s [132 SUS]).

©

Danfoss | July 2021 BC319483612502en-000102 | 19

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

20 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

©

Danfoss | July 2021 BC319483612502en-000102 | 21

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Flange, shaft and port configurations

...For SKM1NN and SKU1NN

Code Flange Shaft Port
01BA European 01, 4-

bolts pilot Ø

25.4 mm [1.0 in]

Taper 1:8

European in

+ pattern

02BB European 02, 4-

bolts pilot Ø 30
mm [1.181]

02FA European 02, 4-

bolts pilot Ø 30
mm [1.181]

06GA

SAE A-A 2-bolts Parallel

06SA SAE A-A 2-bolts

Taper 1:8 German

Parallel
12 mm [0.472 in]

12.7 mm [0.5 in]

SAE A-A
9-teeth splined

standard in X
pattern

European in
+ pattern

Threaded
SAE O-ring
boss

Threaded
SAE O-ring
boss

...For SNU1NN

Code Flange Shaft Port
01BA

European 01, 4­bolts pilot Ø

25.4 mm [1.0 in]

Taper 1:8

European in

+ pattern

Shaft options

Group 1 motors are available with a variety of splined, parallel, and tapered shaft ends. Not all shaft styles
are available with all flange styles.

A B C D E F G H I J K L M N O

● ● /

22 | © Danfoss | July 2021 BC319483612502en-000102

C

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Shaft Mounting flange code with maximum torque
Code Description 01 02 06
BA
BB
DB
FA
GA
SA

Recommended mating splines for Group 1 splined output shafts should be in accordance with SAE J498
or DIN 5482. Danfoss external SAE splines are flat root side fit with circular tooth thickness reduced by

0.127 mm [0.005 in] in respect to class 1 fit. The external DIN splines have an offset increased by 0.1 mm
[0.004 in]. These dimensions are modified in order to assure a clearance fit with the mating spline.

Other shaft options may exist. Contact your Danfoss representative for availability.

Taper 1:8 25 [221] - -

Taper 1:8 - 50 [442] -

Splined Z15-m0,75-alfa 30°-L14 - 35 [309] -

Parallel 12 mm [0.47 in] - 24 [212] -

Parallel 12.7 mm [0.50 in] - - 32 [283]

SAE spline J 498-9T-20/40DP - - 34 [301]

Caution

Integral relief value - SKM1IN

Shaft torque capability may limit allowable pressure. Torque ratings assume no external radial loading.
Applied torque must not exceed these limits, regardless of stated pressure parameters. Maximum torque
ratings are based on shaft torsional fatigue strength.

Danfoss offers an optional integral relief valve integrated in the Group 1 motors rear cover. It is drained
internally and directs all the flow from the motor inlet to the outlet when the inlet pressure reaches the
valve setting.

The tables below show applicable variant codes for ordering motors with integral relief valve. Refer to

Model code on page 15 for more information.

Valve schematic diagram

©

Danfoss | July 2021 BC319483612502en-000102 | 23

Inlet

Drain

P101 016

bar

0

[1000]

[2000]

[3000]

[4000]

[5000]

[psi]

l/min

0

[US gal/min]

0

100

200

300

400

With mineral oil at 26 mm2/s

10 3020 40

[10][2] [4]

[6] [8]

MINIMUM VALVE SETTING

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Integral relief valve rear cover cross section

Pressure vs flow

Variant codes for ordering intergral relief valve

Variant codes for ordering integral relief valve

A B C D E F G H I J K L M N O

/ V ● ●

M Variant code (left part)

Code

A
C
E
F
G
K
I
L
M

24 | © Danfoss | July 2021 BC319483612502en-000102

Motor speed for RV setting
min-1 (rpm)

not defined

500

1000

1250

1500

2000

2250

2500

2800

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

M Variant code (left part) (continued)

Code

N
O

M Variant code (right part)

Code

A
B
C
D
E
F
G
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Z

Motor speed for RV setting
min-1 (rpm)

3000

3250

Pressure setting bar
[psi]

no setting

no valve

18 [261]

25 [363]

30 [435]

35 [508]

40 [580]

150 [2175]

50 [725]

60 [870]

70 [1015]

80 [1160]

90 [1305]

100 [1450]

110 [1595]

120 [1740]

130 [1885]

140 [2030]

160 [2321]

170 [2466]

180 [2611]

210 [3046]

250 [3626]

©

Danfoss | July 2021 BC319483612502en-000102 | 25

g

CB

h

x

y

45o

i (4 holes min. full thd.

20 mm [0.787 in] deep)

z (4 holes min. full thd.

20 mm [0.787 in] deep)

D

FE

d

f

e

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Ports dimensions

Available ports for Group 1 motors

Bidirectional motor ports

SKM1NN bidirectional motor ports dimensions (all frame sizes)

Port type B C D E F
Port dimensions g h i x y z d e f
Inlet/Outlet

Drain

13
[0.512]30[1.181]

M12x1.5 M12x1.5 M12x1.57/16–20UNF–2B 1/8 Gas

M6

12
[0.472]26[1.024]

M5 M18x1.5¾–16UNF–2B 3/₈ Gas

(BSPP)

(BSPP)

26 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

Unidirectional motor ports

SKU1NN, SNU1NN unidirectional motor ports dimensions (all frame sizes)

Port type B C D E F
Port dimensions g h i x y z d e f

2.6 Inlet

3.2 Inlet

3.8 Inlet

4.3 Inlet

6.0 Inlet

7.8 Inlet

010 Inlet

012 Inlet

Outlet

Outlet

Outlet

Outlet

Outlet

Outlet

Outlet

Outlet

8
[0.315]

13
[0.512]

8
[0.315]

13
[0.512]

8
[0.315]

13
[0.512]

8
[0.315]

13
[0.512]

13
[0.512]

13
[0.512]

13
[0.512]

13
[0.512]

13
[0.512]

13
[0.512]

13
[0.512]

13
[0.512]

30
[1.181]

M6

12
[0.472]26[1.024]

M14x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M14x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M14x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M14x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M5

M18x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M18x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M18x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

M18x1.59/₁₆–18UNF–

M18x1.5¾–16UNF–2B

2B

2B

2B

2B

3/8 Gas
(BSPP)

2B

2B

2B

2B

Dimensions

©

Danfoss | July 2021 BC319483612502en-000102 | 27

01BA

1:8

Cone reference diameter

to cone reference diameter

Recommended
tightening

torque: 7-12 Nm

Distance from front flange

29 [1.14]

M7-6g

14.4 [0.583]

5.2 [0.205]

12.4 [0.488]

X

Pilot width

-0.041

-0.020

16.5 [0.65]

4.2 [0.165]

X

Ø

0.75

body width

69.4 [2.73] max

52.4 [2.06]

88.1 [3.47] max

74.5 [2.93] max

(53.8 max)

[2.12]

(34.3 max)

[1.35]

(71.9)

[2.83]

26.2

[1.03]

45.7

[1.8]

68 ±0.25 [2.68 ±0.010]

5.5 [0.217 ]

+0.15

-0.25

+0.0059

-0.0098

-0.0098

2.41 [0.0949 ]

0

-0.025

0

D/d

E/e

C/c

(min full thd 10 [0.394] deep)

±0.50 [0.020]

±0.20 [0.008]

B

max

A

A

A

A-A

Ø 25.4 [1.0 ]

Ø 9.82 [0.387]

10.8 ±0.50 [0.425 ±0.020]

Ø7.2 - 8

[.283- .315]

-0.0016

-0.0008

21.6 ±0.50

[0.85 ±0.020]

M12x1.5-6H
Drain port

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

SKM1NN, SKU1NN, SNU1NN – 01BA

Standard porting drawing for 01BA

For unidirectional motors no case drain hole into the rear cover.

SKM1NN – 01BA dimensions

Type (displacement) 2.6 3.2 3.8 4.3 6.0 7.8 010 012

Dimension A 40.5

[1.594]

Inlet/Outlet C/c 12 [0.472]

For unidirectional SNU1NN, SKU1NN dimensions see Ports dimensions on page 26.

Model code examples and maximum shaft torque

B

85.0

[3.346]

D/d 26 [1.024]

E/e M5

Flange/drive gear Model code example Maximum shaft torque
01BA SKM1NN/3,2BN01BAM1C2C2NNNN/NNNNN

SKU1NN/4,3LN01BAP1C2C2NNNN/NNNNN
SNU1NN/3,8RN01BAP1F3F3NNNN/NNNNN

28 | © Danfoss | July 2021 BC319483612502en-000102

For further details on ordering, see Model code on page 15.

41.5

[1.634]

87.0

[3.425]

42.5

[1.673]

89.0

[3.504]

43.5

[1.713]

91.0

[3.583]

46.75

[1.841]

97.5

[3.839]

50.0

[1.969]

104.0

[4.094]

54.5

[2.146]

113.0

[4.449]

25 N•m [221 lb•in]

58.5

[2.303]

121.0

[4.764]

12.0 [0.472 ]

+0.0 +0.0

-0.018 -0.001

M10 x 1-6g

11.7 [0.461]

8.3 [0.327]

Distance from front

flange to shoulder

31.5 [1.240]

3.0 [0.118 ]

+0.0 +0.0

-0.030 -0.001

13.2 [0.520 ]

+0.05 +0.002

-0.20 -0.008

88.2 [3.472] max

7.5 [0.295 ]

+0.25 +0.010

-0.15 -0.006

3.0 [0.118

]

0

0

-0.030 -0.001

C/c

D/d

E/e

A

A

A

A-A

16.5 [0.650]

7.0 [0.276]
Pilot width

8.0 [0.315]

Distance from front flange

to cone reference diameter

B max

M10x1-6g

Ø13.95 [0.549]

Cone re ference diameter

10.8 [0.425

30.0 [1.181 ]

-0.020 -0.0008

-0.041 -0.0016

68.0

[23.677 ]

body width

74.5 [2.933] max

56.0 [2.205]

70.9 [2.791] max

24.5 [0.965]

48.5 [1.909]

(73.0 [2.874])

(32.1 [1.264] max)

(56.1 [2.209] max)

Ø 6.7-7.5

[0.264-0.295]

1:

8

35 [1.378]

15.75 [0.620]

15.5 [0.610]

±0.25

±0.20 [±0.08]

±0.50 ±0.020]

±0.50 [±0.02]

±0.010

02BB 02FA

(min full thd 10 [0.394] deep)

X

Ø 0.75 [0.0295]

M12x1.5-6H

Drain port

B

B

B-B

X

Recommended
tightening
torque: 10-16 Nm

Recommended
tightening
torque: 10-16 Nm

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

SKM1NN, SKU1NN – 02BB, 02FA

Standard porting drawing for 02BB, 02FA

For unidirectional motors no case drain hole into the rear cover.

SKM1NN – 02BB and 02FA dimensions

Type (displacement) 2.6 3.2 3.8 4.3 6.0 7.8 010 012

Dimension A 40.5

[1.594]

B

85.0

[3.346]

Inlet/Outlet C/c 12 [0.472]

D/d 26 [1.024]

E/e M5

For unidirectional SKU1NN dimensions see Ports dimensions on page 26.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
02BB SKM1NN/010BN02BBM1C2C2NNNN/NNNNN

SKU1NN/6,0LN02BBM1C2C2NNNN/NNNNN

02FA

For further details on ordering, see Model code on page 15.

SKM1NN/6,0BN02FAM1C2C2NNNN/NNNNN
SKU1NN/6,0LN02FAM1C2C2NNNN/NNNNN

41.5

[1.634]

87.0

[3.425]

42.5

[1.673]

89.0

[3.504]

43.5

[1.713]

91.0

[3.583]

46.75

[1.841]

97.5

[3.839]

50.0

[1.969]

104.0

[4.094]

54.5

[2.146]

113.0

[4.449]

50 N•m [442 lb•in]

24 N•m [212 lb•in]

58.5

[2.303]

121.0

[4.764]

©

Danfoss | July 2021 BC319483612502en-000102 | 29

12.344 [0.486 ]

0

0

0

0

-0.05

Splined:
SAE J498-9T-20/40DP
Flat root side fit
Circular tooth thickness:

0.127 [0.005]
less than class 1 fit

15.6 [0.614]

19.1 [0.752]

7.9 [0.311]

27.0 [1.063]

74.5 [2.933] max

body width

R 32.1 [1.26] max

82.55 [3.258]

103.4 [4.071] max

80.2 [3.157] max

X

10.2-10.8 [.402-.425]

Ø 0.75 [0.030]

3.2 [0.126 ]

-0.025 -0.126

13.94-14.20

[0.549-0.559]

Straight thread
O-Ring boss

8.0 [0.315]

6.0 [0.236]

Pilot width

7.9 [0.311]

Distance from front flange to shoulder

Distance from front
flange to shoulder

19.1

[0.752]

27.0 [1.063]

12.7 [0.500 ]

-0.025 -0.001

10.8 ±0.50 [0.425 ±0.020]

68.0 ±0.25 [2.677 ±0.010]

50.8 [2.0 ]

0

0

-0.050 -0.002

06GA

06SA

C/c

±0.50 [0.020]

B

max

A

A

A

A-A

-0.127

0

0

7/16-20UNF-2B
Drain port

X

Technical Information

G

ear Motors Group 1, 2, and 3

Group 1 Gear motors

SKM1NN, SKU1NN – 06GA and 06SA

Standard porting drawing for 06GA and 06SA

For unidirectional motors no case drain hole into the rear cover.

SKM1NN – 06GA and 06SA dimensions

Type (displacement) 2.6 3.2 3.8 4.3 6.0 7.8 010 012

Dimension A 45

[1.771]46[1.811]47[1.850]48[1.889]

B

89.5

[3.523]

91.5

[3.602]

93.5

[3.681]

95.5

[3.759]

51.25

[2.017]

102

[3.839]

54.5

[2.145]59[2.322]

108.5

[4.015]

117.5

[4.625]

63.5

[2.500]

125.5

[4.940]

Inlet/Outlet C/c ¾–16UNF–2B, THD 14.3 [0.563] deep

For unidirectional SKU1NN dimensions see Ports dimensions on page 26.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque

06GA SKM1NN/6,0BN06GAM6E4E4NNNN/NNNNN

SKU1NN/4,3RN06GAP1E3E4NNNN/NNNNN

06SA

SKM1NN/012BN06SAM6E4E4NNNN/NNNNN
SKU1NN/3,2LN06SAP1E3E4NNNN/NNNNN

For further details on ordering, see Model code on page 15.

32 N•m [283 lb•in]

34 N•m [301 lb•in]

30 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Motor design

SNM2NN

SNM2NN is the group 2 bidirectional motor available in the whole displacements range from 6 up to 25
cm3/rev [from 0.37 up to 1.538 in3/rev].

Configurations include European and SAE flanges and shafts (Code 01BA, 01FA, 01DA, 02AA, 02DB, 03CA,
04AA/05AA, 04DB/05DB, 06GA, 06SA).

SNU2NN

SNU2NN is the group 2 unidirectional motor available in the displacements range from 8 up to 25
cm3/rev [from 0.513 up to 1.538 in3/rev]. The SNU2NN motor construction is derived from the
correspondent pump SNP2NN.

Configurations include European and SAE flanges and shafts (Code 01BA, 01FA, 01DA, SNU2NN 06SA (cut
away) 02AA, 02DB, 03CA, 04AA/05AA, 04DB/05DB, 06GA, 06SA).

©

Danfoss | July 2021 BC319483612502en-000102 | 31

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Technical data

SKU2NN

SKU2NN is the Group 2 unidirectional motor available in the displacements range from 8 up to 25
cm3/rev [from 0.513 up to 1.538 in3/rev]. The SKU2NN motor construction is derived from the
correspondent pump SKP2NN. Configuration includes SAE flange and shaft only (Code 06SA).

The table below details the technical data for Group 2 gear motors based on the model and displacement
configuration.

Technical data for Group 2 gear motors

Frame size

*

6.0

Displacement cm3/rev

SNM2NN (bidirectional motor)

Peak pressure

Rated pressure

Outlet back
pressure

[in3/rev]

bar [psi] 280

6.0
[0.36]

[4060]
250

[3625]
250

[3625]

8.0 011 014 017 019 022 025

8.4
[0.513]

280
[4060]

250
[3625]

250
[3625]

10.8
[0.659]

280
[4060]

250
[3625]

250
[3625]

14.4
[0.879]

280
[4060]

250
[3625]

250
[3625]

16.8
[1.025]

260
[3770]

230
[3335]

230
[3335]

19.2
[1.171]

230
[3335]

210
[3045]

210
[3045]

22.8
[1.391]

200
[2900]

180
[2610]

180
[2610]

25.2
[1.538]

180
[2610]

160
[2320]

160
[2320]

32 | © Danfoss | July 2021 BC319483612502en-000102

C

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Technical data for Group 2 gear motors (continued)

Minimum
speed

Maximum
speed

SNU2NN (unidirectional motor)

Peak pressure

Rated pressure

Minimum
speed

Maximum
speed

SKU2NN (unidirectional motor)

Peak pressure

Rated pressure

Minimum
speed

Maximum
speed

All (SNM2NN, SNU2NN, SKU2NN)

Weight kg [lb]

Moment of
inertia of
rotating
components

Theoretical
flow at
maximum
speed

*

Before chosing this frame size, please apply to Danfoss technical department.

Frame size

*

6.0

min-1(rpm)700 700 700 700 500 500 500 500

4000 4000 4000 4000 4000 3500 3500 3500

bar [psi] – 280

-1

min
(rpm)

bar [psi] – 280

-1

min
(rpm)

2.4
[5.3]

-6

x 10
kg•m
[x 10
lb•ft2]

l/min [US
gal/min]

26.5

2

[629]

-6

24
[6.3]

8.0 011 014 017 019 022 025

280

[4060]
250

[3625]
600 600 600 500 500 500 500

3500 3500 3500 3000 3000 3000 2500

[4060]
250

[3625]
600 600 600 500 500 500 500

3500 3500 3500 3000 3000 3000 2500

2.5
[5.5]

32.4
[769]

33.6
[8.9]

[4060]
250

[3625]

280
[4060]

250
[3625]

2.7
[5.5]

38.4
[911]

43.2
[11.4]

280
[4060]

250
[3625]

280
[4060]

250
[3625]

2.9
[6.3]

47.3
[1122]

50.4
[13.3]

260
[3770]

230
[3335]

260
[3770]

230
[3335]

3.0
[6.5]

53.3
[1265]

50.4
[13.3]

230
[3335]

210
[3045]

230
[3335]

210
[3045]

3.1
[6.7]

59.2
[1405]

57.6
[15.2]

200
[2900]

180
[2610]

200
[2900]

180
[2610]

3.2
[7.0]

68.1
[1616]

68.4
[18.0]

180
[2610]

160
[2320]

175
[2815]

160
[2320]

3.3
[7.3]

74.1
[1758]

75.6
[20.0]

1 kg•m2 = 23.68 lb•ft

2

Caution

The rated and peak pressure mentioned are for motors with flanged ports only. When threaded ports are
required a de-rated performance has to be considered. To verify the compliance of an high pressure
application with a threaded ports pump apply to a Danfoss representative.

Model code

A Family

A B C D E F G H I J K L M N O

● ● ● ● ● ● /

©

Danfoss | July 2021 BC319483612502en-000102 | 33

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

SKU2NN
SNM2DN
SNM2GC
SNM2GL
SNM2GN
SNM2IL
SNM2IN
SNM2JN
SNM2NC
SNM2NL
SNM2NN
SNU2EN
SNU2GN

SNU2GC

SNU2IN

SNU2JN

SNU2NC
SNU2NN
SNU2QN

GR2 Unidir.Motor (only available in combination with SB shaft)

Gr2 Bidir.Motor-Int.Drain

Gr2 Bidir.Motor+In./Out. on CoverAnticav.Check Valve (axial drain)

Gr2 Bidir.Motor-Anticav.Check Val.-vert.drain

Gr2 Bidir.Motor-Anticav.Check Valve (axial drain)

Gr2 Bidir.Motor+Int.drain RV-Vert.drain

Gr2 Bidir.Motor+Int.drain RV

Gr2 Bid.Motor+Int.drain RV+Anticav.Check Valve

Gr2 Bidir.Motor-Cover Ports-Ax.drain

Gr2 Bidir.Motor-Vert.drain

Gr2 Bidir.Motor

Gr2 Unidir.Motor+Ext.drain RV

Gr2 Unidir.Motor+Anticav.Check Valve

Gr2 Unidir.Motor-In./Out. on Cover+Anticav.Check Valve

Gr2 Unidir.Motor+Int.drain RV

Gr2 Unidir.Motor+Int.drain RV+Anticav.Check Valve

Gr2 Unidir.Motor-In.-Out.on cover

Gr2 Unidir.Motor

Gr2 Unid.Motor-Ext.drain RV+Anticav.Check Valve

B Displacement

A B C D E F G H I J K L M N O

6,0
8,0
011
014
017
019
022
025

6,0 cc -Special

8,4 cc

10,8 cc

14,4 cc

16,8 cc

19,2 cc

22,8 cc

25,2 cc

C Rotation

A B C D E F G H I J K L M N O

L
R
B

Left (Counterclockwise)

Right (Clockwise)

Bidirectional

● ● ● /

● /

34 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

D Project version

N Std Version of Project
4 Precharged seal on cover-Special

6 Short version - Special

E Mounting flange

A B C D E F G H I J K L M N O

● /

heavy-duty applications

A B C D E F G H I J K L M N O

● ● /

01
02
03
04
05
06
91
92
94
9A
9D
9F
9H
9J
9L
9M

F Drive gear

A B C D E F G H I J K L M N O

pilot Ø36,5+4 holes

pilot Ø80+4 holes

pilot Ø52+O-ring+4 holes through body

pilot Ø50+2 holes through body - connection variant 1

pilot Ø50+2 holes through body - connection variant 2

SAE A pilot Ø82,55+2 holes

Outriger Bearing Type 01+taper shaft 1:8-M12x1,25-Key4

Outriger Bearing Type 02+taper shaft 1:5-M12x1,25-Key3

Outriger Bearing Type 04+taper shaft 1:5-M12x1,25-Key3

Outriger Bearing Type 01+taper shaft 1:8-M12x1,25-Key3.2

Outriger Bearing Type 01+parallel shaft Ø15-Key4

Outriger Bearing Type 02+taper shaft 1:5-M14x1,5-Key4

Outriger Bearing Type 06+taper shaft 1:8-M12x1,25-Key4

Outriger Bearing Type 06 with parallel shaft Ø3/4 (Ø19.05 mm)

Outriger Bearing Type 01 parallel shaft Ø22 pilot Ø50,8

Outriger Bearing Type 01 parallel shaft Ø18 pilot Ø36,5

● ● /

B1
BA
BB
CA
DA
DB
FA
GA
GB

©

Danfoss | July 2021 BC319483612502en-000102 | 35

Taper 1:8-M12x1,25-Key 4/6 lowered

Taper 1:8-M12x1,25-Key 4

Taper 1:8-M12x1,25-Key 4/3,2

Tang 8x17,8xL6,5

Spline DIN 5482 B17x14-L10

Spline DIN 5482 B17x14-L14

Parallel Ø15-L30+Key 4x25

Parallel SAE Ø15,875-L23,8-Key 4x18

Parallel SAE Ø15,875-L50,8-Key 4x40

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

SA
SB

G Rear cover

A B C D E F G H I J K L M N O

E1

E6

F1
F6
G1

G6

I1

J6

L1
L3
L6
L7
L8
LC
LD
LE
LF

LH

LS

LT

LX

LZ
M1
M3
M4
M6
M7

M8

P1
P3

Spline SAE J498-9T-16/32

Spline SAE J498-11T-16/32 - Available only for SKU2

● ● /

Cover for unidirectional motors with relief valve - external
drain 3/8 Gas

Cover for unidirectional motors with Relief Valve external drain
3/4-16UNF-2B

Cover motor per braking valve and drain 1/4 Gas

Cover motor per braking valve and drain 9/16-18UNF-2B

Cover motor front ports:Inlet 1/2 G;Outlet 1/2 G;Drain 1/4 G

Cover motor front ports:Inlet 7/8-14UNF;Outlet
7/8-14UNF;Drain 9/16-18UNF

Cover for unidirectional motors with RV

Cover motor per braking valve with side drain in vertical axis
9/16-18UNF-2B

Cover motor-drain in vertical axis 1/4 Gas

Cover motor-drain in vertical axis 1/4 Gas for flange type 03

Cover motor-drain in vertical axis 9/16-18UNF-2B

Cover motor-drain at 22° left 7/16-20UNF-2B

Cover motor-drain in horizontal axis 9/16-18UNF-2B drain left

Cover motor-drain in horizontal axis 1/4 Gas right side

Cover motor-drain in horizontal axis 1/4 Gas left side

Cover motor-drain in horizontal axis M12x1,25 ISO 6149

Cover motor-drain in horizontal axis M12x1,5 right side

Cover motor-drain in horizontal axis 9/16-18UNF-2B drain
right

Cover motor-drain at 22° left 7/16-20UNF-2B drive gear side

Cover motor-drain in vertical axis 1/4 Gas for flange typo 03
drive gear side

Cover motor-drain in vertical axis 9/16-18UNF-2B drive gear
side

Cover motor-drain in vertical axis 1/4 Gas drive gear side

Std cover motor drain 1/4 Gas driven side

Std cover motor drain 1/4 Gas for flange typo 03

Std cover motor drain 9/16-18UNF-2B for flange typo 03

Std cover motor drain 9/16-18UNF-2B

Std cover motor-drain 1/4 Gas drive side

Special intermediate motor flange type 01-drain 1/4 Gas ­Special

Std cover for unidirectional motors

Std cover for unidirectional motors for flange typo 03

36 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

V1
V2
V6

V7

Cover motor per RV with drain 1/4 Gas

Cover motor per RV with drain vertical axis 1/4 Gas driven side

Cover motor per RV with drain 9/16-18UNF-2B

Cover motor per RV with drain vertical axis 9/16-18UNF-2B
driven side

H Inlet size; I Outlet size

NN
B5
B6
B7
BB

C3
C5
C7
C8
D5
D7
D9

Inlet or outlet is not in the body

15x35xM6

15x40xM6

20x40xM6

27x55xM8

13,5x30xM6

13,5x40xM8

20x40xM8

23,5x40xM8

M18x1,5

M22x1,5

M26x1,5

E4
E5
E6
E8

F3
F4
F5
F6

H5
H7
H8
H9

M1
M2
M3
M5

3/4-16UNF

7/8-14UNF

1-1/16-12UN

1-5/16-12UN

3/8 GAS

1/2 GAS

3/4 GAS

1 GAS

M18x1,5-ISO6149

M22x1,5-ISO6149

M27x2-ISO6149

M33x2-ISO6149

12x17,48x38,1xM6

12x17,48x38,1xM8

18,5x17,48x38,1xM8

25/20x52,37x26,19xM10

©

Danfoss | July 2021 BC319483612502en-000102 | 37

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

MB
MC
MD
ME
MG

12x38,1x17,48xM8(=)

18,5x47,63x22,23xM6(=)

18,5x47,63x22,23xM8(=)

18,5x47,63x22,23xM10(=)

25/20x52,37x26,19xM10(=)

J Ports pos & Spec body

A B C D E F G H I J K L M N O

NN
YY

PL*

PR*

ZZ

Std from catalogue

Port Bx-Bx with flange SAE-A; off-set to rear cover

Inlet port Left position looking gear drive from front flange

Inlet port Right position looking gear drive from front flange

Port Bx-Bx in the center of the body

* to be used if inlet-outlet are different

K Seals

A B C D E F G H I J K L M N O

● ● /

● /

N
B
D
X
Y
Z

L Screws

A B C D E F G H I J K L M N O

N
A
B

M Set valves

A B C D E F G H I J K L M N O

Standard NBR seals

VITON seals

VITON shaft seal with dust lip (type BABSL)

Standard NBR seals + Dust Cover

VITON seals + Dust Cover

VITON shaft seal + Dust Cover

● /

Std burnished screws

Zinc plated screws

Anticorrosion screws

/ ● ● ●

38 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

NNN

*

V

*

For details, see Variant codes for ordering intergral relief valve on page 24.

No valve

not defined-pressure no setting :oil ISO VG68-45°

N Type of mark

A B C D E F G H I J K L M N O

N
A
Z

Standard Danfoss Marking

Standard Danfoss Marking+Customer Code-Special

Without Marking

O Mark position

A B C D E F G H I J K L M N O

N
A

Std Marking position (on top)

Special Marking position on the bottom

/ ●

/ ●

©

Danfoss | July 2021 BC319483612502en-000102 | 39

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Motor performance graphs

The graphs on the next few pages provide typical inlet flow and output torque for Group 2 motors at
various working pressures. Data were taken using ISO VG46 petroleum /mineral based fluid at 50 °C [122
°F] (viscosity = 28 mm2/s [132 SUS]).

40 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

©

Danfoss | July 2021 BC319483612502en-000102 | 41

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Flange, shaft and port configurations

… For SNM2NN and SNU2NN

Code Flange Shaft Port
01BA

uropean 01, 4­bolts
pilot Ø 36.5 mm
[1.44 in]

1:8 tapered

European
in + pattern

02AA

04AA/
05AA

01FA

06GA

01DA

European 02, 4­bolts
pilot Ø 80 mm
[3.15 in]

German PTO 2­bolts
pilot Ø 50 mm
[1.97 in]

European 01, 4­bolts
pilot Ø 36.5 mm
[1.44 in]

SAE A
pilot Ø 82.55 mm
[3.25 in]

European 01, 4­bolts
pilot Ø 36.5 mm
[1.44 in]

1:5 tapered

1:5 tapered

Ø 15 mm [0.59 in]
parallel

Ø 15.7 mm [0.625
in]
parallel

9-teeth splined
m = 1.60, α = 30o
DIN 5482-B17x14

German standard
in X pattern

German standard
in X pattern

European
in + pattern

Threaded SAE
O-ring boss port

European
in + pattern

02DB

04DB/
05DB

European 02, 4­bolts
pilot Ø 80 mm
[3.15 in]

German PTO 2­bolts
pilot Ø 50 mm
[1.97 in]

9-teeth splined
m = 1.60, α = 30o
DIN 5482-B17x14

9-teeth splined
m = 1.60, α = 30o
DIN 5482-B17x14

German standard
in X pattern

German standard
in X pattern

42 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

… For SNM2NN and SNU2NN (continued)

Code Flange Shaft Port
06SA

SAE A
pilot Ø 82.55 mm
[3.25 in]

SAE
9-teeth splined

Threaded SAE
O-ring boss port

Shaft options

03CA

tang pilot Ø 52
mm [2.066 in]

Turolla
standard tang

German standard
in X pattern

Group 2 motors are available with a variety of splined, parallel, and tapered shaft ends. Not all shaft styles
are available with all flange styles.

Valid combinations and nominal torque ratings are shown in the following table. Torque ratings assume
no external radial loading. Applied torque must not exceed these limits regardless of pressure
parameters stated earlier. Maximum torque ratings are based on shaft torsional fatigue strength.

Shaft availability and nominal torque capability

A B C D E F G H I J K L M N O

● ● /

Shaft Mounting flange code with maximum torque in N•m [lb•in]
Code Description 01 02 B2 03 04 05 06
AA

AD

B1

BA

BB

BJ

CA
DA
DB

FA
GA

GB

Taper 1:5-M12x1,25-Key 3 140

Taper 1:5-M12X1,25-Key 3­Drive (Version 6 only)

Taper 1:8-M12x1,25-Key 4/6
lowered

Taper 1:8-M12x1,25-Key 4 150

Taper 1:8-M12x1,25-Key 4/3,2 150

Taper 1:8-M12x1,25-Key 4/3
black steel

Tang 8x17,8xL6,5 FR03 70 [620]

Spline DIN 5482 B17x14-L10 90 [797]

Spline DIN 5482 B17x14-L14 130

Parallel Ø15-L30+Key 4x25 90 [797]

Parallel SAE Ø15,875-L23,8­Key 4x18

Parallel SAE Ø15,875-L50,8­Key 4x40

150
[1328]

[1328]

[1328]

[1239]
140

[1239]

[1151]

140
[1239]

130
[1151]

140
[1239]

150
[1328]

130
[1151]

140
[1239]

140
[1239]

150
[1328]

150
[1328]

130
[1151]

150
[1328]

150
[1328]

80 [708]

80 [708]

©

Danfoss | July 2021 BC319483612502en-000102 | 43

C

g

CB

h

x

y

45o

i (4 holes min. full thd.

20 mm [0.787 in] deep)

z (4 holes min. full thd.

20 mm [0.787 in] deep)

D

FE

d

f

e

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Shaft Mounting flange code with maximum torque in N•m [lb•in]
Code Description 01 02 B2 03 04 05 06
SA
SB

Recommended mating splines for Group 2 splined output shafts should be in accordance with SAE J498
or DIN 5482. Danfoss external SAE splines are flat root side fit with circular tooth thickness reduced by

0.127 mm [0.005 in] in respect to class 1 fit. The external DIN splines have an offset increased by 0.1 mm
[0.004 in.] These dimensions are modified in order to assure a clearance fit with the mating spline.

Other shaft options may exist. Contact your Danfoss representative for availability.

Shaft torque capability may limit allowable pressure. Torque ratings assume no external radial loading.
Applied torque must not exceed these limits, regardless of stated pressure parameters. Maximum torque
ratings are based on shaft torsional fatigue strength.

Spline SAE J498-9T-16/32 75 [646]

Spline SAE J498-11T-16/32
(Available only for SKU2)

Caution

150
[1328]

Port dimensions

Available ports for Group 2 motors

44 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Bidirectional motor ports dimensions

SNM2NN bidirectional motors and SNM2GN, SNM2JN, SNM2IN motors made unidirectional only by the valve

Port type B C D E F
Port dimensions g h i x y z d e f

Frame
size

Drain ¼ Gas (BSPP) 9/16–

6,0 Inlet/

Outlet

8,0 Inlet/

Outlet

011 Inlet/

Outlet

014 Inlet/

Outlet

017 Inlet/

Outlet

019 Inlet/

Outlet

022 Inlet/

Outlet

025 Inlet/

Outlet

15 [0.59] 35 [1.38] M6 13.5

[0.53]

15 [0.59] 35 [1.38] M6 13.5

[0.53]

15 [0.59] 35 [1.38] M6 13.5

[0.53]

15 [0.59] 35 [1.38] M6 20 [0.79] 40 [1.58] M8 M22x1.5 7/8–14UNF–2B½ Gas

15 [0.59] 35 [1.38] M6 20 [0.79] 40 [1.58] M8 M22x1.5 7/8–14UNF–2B½ Gas

20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M26x1.5 1-1/16–

20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M26x1.5 1-1/16–

20 [0.79] 40 [1.58] M6 23.5

[0.92]

30 [1.18] M6 M22x1.5 7/8–14UNF–2B½ Gas

30 [1.18] M6 M22x1.5 7/8–14UNF–2B½ Gas

30 [1.18] M6 M22x1.5 7/8–14UNF–2B½ Gas

12UNF–2B

12UNF–2B

40 [1.58] M8 M26x1.5 1-1/16–

12UNF–2B

18UNF–2B

(BSPP)

(BSPP)

(BSPP)

(BSPP)

(BSPP)
¾ Gas

(BSPP)
¾ Gas

(BSPP)
¾ Gas

(BSPP)
¼ Gas

(BSPP)

©

Danfoss | July 2021 BC319483612502en-000102 | 45

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Unidirectional motor ports dimensions

SNU2NN and SKU2NN ports dimensions

Port type B C D E F
Port dimensions g h i x y z d e f

Frame
size

8,0 Inlet 15 [0.59] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 13.5

[0.53]

011 Inlet 15 [0.591] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 13.5

[0.53]

014 Inlet 15 [0.59] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M16x1.5 ⁷⁄₈–14UNF–2B ½ Gas

017 Inlet 15 [0.59] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M18x1.5 ⁷⁄₈–14UNF–2B ½ Gas

019 Inlet 15 [0.59] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M18x1.5 ⁷⁄₈–14UNF–2B ½ Gas

022 Inlet 15 [0.59] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M18x1.5 ⁷⁄₈–14UNF–2B ½ Gas

025 Inlet 15 [0.59] 35 [1.38] M6 13.5

[0.53]

Outlet 20 [0.79] 40 [1.58] M6 20 [0.79] 40 [1.58] M8 M18x1.5 ⁷⁄₈–14UNF–2B ¾ Gas

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

30 [1.18] M6 M16x1.5 ⁷⁄₈–14UNF–2B ½ Gas

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

30 [1.18] M6 M16x1.5 ⁷⁄₈–14UNF–2B ½ Gas

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

30 [1.18] M6 M18x1.5 1-1/16–

12UNF–2B

½ Gas
(BSPP)

(BSPP)
¾ Gas

(BSPP)

(BSPP)
¾ Gas

(BSPP)

(BSPP)
¾ Gas

(BSPP)

(BSPP)
¾ Gas

(BSPP)

(BSPP)
¾ Gas

(BSPP)

(BSPP)
1 Gas

(BSPP)

(BSPP)

Integral relief valve - SNM2IN

Danfoss offers an optional integral relief valve integrated in the Group 2 motors rear cover. It is drained
internally and directs all the flow from the motor inlet to the outlet when the inlet pressure reaches the
valve setting.

The tables in Variant codes for ordering intergral relief valve on page 24 show applicable variant codes for
ordering motors with integral relief valve. Refer to Model code on page 33 for more information.

46 | © Danfoss | July 2021 BC319483612502en-000102

Inlet

Drain

P101 016

bar

0

[1000]

[2000]

[3000]

[4000]

[5000]

[psi]

l/min

0

[US gal/min]

0

100

200

300

400

With mineral oil at 26 mm2/s

10 3020 40

[10][2] [4]

[6] [8]

MINIMUM VALVE SETTING

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Valve schematic diagram

Integral relief valve rear cover cross section

Pressure vs flow

Variant codes for ordering intergral relief valve

Variant codes for ordering integral relief valve

A B C D E F G H I J K L M N O

/ V ● ●

©

Danfoss | July 2021 BC319483612502en-000102 | 47

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

M Variant code (left part)

Code

A
C
E
F
G
K
I
L
M
N
O

Motor speed for RV setting
min-1 (rpm)

not defined

500

1000

1250

1500

2000

2250

2500

2800

3000

3250

M Variant code (right part)

Code

A
B
C
D
E
F
G
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Z

Pressure setting bar
[psi]

no setting

no valve

18 [261]

25 [363]

30 [435]

35 [508]

40 [580]

150 [2175]

50 [725]

60 [870]

70 [1015]

80 [1160]

90 [1305]

100 [1450]

110 [1595]

120 [1740]

130 [1885]

140 [2030]

160 [2321]

170 [2466]

180 [2611]

210 [3046]

250 [3626]

48 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Anti-cavitation check valve - SNM2GN

Danfoss offers an optional integral anti-cavitation check valve integrated in Group 2 motors bearing
blocks. Available for all the displacements, the valve directs internally the flow from the motor outlet to
the inlet, when the outlet pressure gets higher then the inlet one.

Valve schematic diagram

Anticavitation check valve cross section

Integral relief valve and anti-cavitation check valve - SNM2JN

Danfoss offers the Group 2 motors with an optional integral relief valve integrated in the rear cover and
anti-cavitation check valve integrated in the bearing block. The integral relief valve is drained internally
and directs all the flow from the motor inlet to the outlet when the inlet pressure reaches the valve
setting. The anti-cavitation check valve directs internally the flow from the motor outlet to the inlet, when
the outlet pressure gets higher then the inlet one.

©

Danfoss | July 2021 BC319483612502en-000102 | 49

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Valve schematic diagram

Outrigger bearing assembly - SNM2NN

An outrigger bearing is available for applications with high radial or thrust loads on the shaft. This option
is used primarily for applications with high shaft loads. The design utilizes roller bearings in the front
mounting flange. These bearings absorb the radial and thrust loads on the shaft so that the life of the
motor is not affected. The use of roller bearings allows life to be described in B10 hours.

Available configurations

Flange/Shaft Code
9A
9F
94
9H
9J

*

Codes represent assembly (complete motor with outrigger bearing).

The preceding table shows applicable variant codes for ordering motors with outrigger bearing. Refer to

M Set valves on page 38 for more information.

A B C D E F G H I J K L M N O

● ● /

*

Mounting Flange Shaft

European 4-bolt Taper 1:8

German PTO Taper 1:5

German 4-bolt Taper 1:5

SAE A Taper 1:8

SAE A Parallel

50 | © Danfoss | July 2021 BC319483612502en-000102

0

500

1000

1500

2000

2500

3000

3500

10 20 30 40 50 60

Load N

Radial Load

Axial Load

0

400

200

800

1200

1600

2000

2400

10 20 30 40 50 60

Load N

Radial Load

Axial Load

0

400

200

800

1200

1600

2000

2400

10 20 30 40 50 60

Distance a (mm)

Distance a (mm)

Distance a (mm)

Distance a (mm)

Distance a (mm)

Load N

SNM2NN / 9ADB

Radial Load

Axial Load

0

400

200

800

1200

1600

2000

2400

10 20 30 40 50 60

Load N

Radial Load

Axial Load

SNM2NN / 9FDB

0

400

200

800

1200

1600

2000

2400

10 20 30 40 50 60

Load N

Radial Load

Axial Load

SNM2NN / 94DB

SNM2NN / 9JDB

SNM2NN / 9HDB

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Allowable shaft loads

The following graphs show allowable shaft loads for 1000 hour life at 1500 min-1 (rpm) versus distance
from flange face to center of radial load.

Radial load vs distance from flange

©

Danfoss | July 2021 BC319483612502en-000102 | 51

Distance from flange face
to center of radial load

a

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

52 | © Danfoss | July 2021 BC319483612502en-000102

Outrigger bearing type 9A

Outrigger bearing type 94

43

]

- 0.15

+0.006

- 0.006

+0.15

46.5

[1.831

3.2

[0.126 ]

- 0.025
0

- 0.0010

0

9.5

[0.374 ]

- 0.35

+0.006

- 0.014

+0.15

A

±0.50 [0.020]

B

±0.50 [0.020]

[1.693

]

- 0.15
+0.006

- 0.006

+0.15

Outrigger bearing type 9F

- 0.030

0

4

- 0.0012

0

[0.157 ]

44.22 - 45.88

[1.741 - 1.806]

34

[1.339 ]

- 0.10
+0.004

- 0.004

+0.10

- 0.20

0

8

- 0.0012

0

[0.157

]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Outrigger bearings 9A, 94, 9J, 9F, and 9H

Dimensions

mm [in]

©

Danfoss | July 2021 BC319483612502en-000102 | 53

Outrigger bearing type 9J

6.5 - 8.5

[0.256 - 0.335]

35

[1.378 ]

- 0.15
+0.006

- 0.006

+0.15

43.5

[1.713 ]

- 0.15

+0.006

- 0.006

+0.15

20.900 - 21.125

[0.823 - 0.832]

4.755

[0.187 ]

- 0.030
0

- 0.0012

0

19.05

[0.75 ]

- 0.033

- 0.0013

0

C

±0.50 [0.020]

D max

0

6 [0.236]

Outrigger bearing type 9H

35

[1.378 ]

- 0.05
+0.002

- 0.002

+0.05

40.48 - 39.32

[1.594 - 1.548]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Dimensions

Dimensions

Dimension A

Frame size 6.0 8.0 011 014 017 019 022 025

45

[1.772]45[1.772]49[1.929]52[2.047]52[2.047]56[2.205]59[2.323]59[2.323]

B

38.6

[1.520]

C

45

40.6

[1.598]45[1.772]45[1.772]45[1.772]45[1.772]

52.5

[2.067]62[2.441]

[1.772]47[1.850]49[1.929]52[2.047]54[2.126]56[2.205]59[2.323]61[2.402]

D

93.5

[3.681]

97.5

[3.839]

101.5

[3.996]

107.5

[4.232]

111.5

[4.390]

115.5

[4.574]

121.5

[4.783]

125.5

[4.941]

54 | © Danfoss | July 2021 BC319483612502en-000102

[1.438 ]

-0.025

-0.050

-0.001

-0.002

9

[3.55]

[0.619 ]

A

A

[0.650 ]

(min full thd 12 [0.472] deep)

1 : 8

A-A

M12x1.25-6g

E/e

40.5

[1.596]

6.3

[0.248]

21.7

[0.854]

17

[0.670]

18

[0.709]

5

[0.02]

C/c

M6 thread 16 [.630] deep

B-B

B

B

6.5

[0.256]

30

[1.182]

36.5

[1.438]

Spline:
B17x14 DIN 5482
Profile offset +0.6 [0.024]

6.5

[0.256]

10

[0.394]

19.5

[0.768]

body width

(96.2 [3.790])

115.2 [4.539] max

90 max
[3.546]

D/d

±0.20 [0.008]

(41.9 [1.651])

71.5

[2.817]

63.8
[2.514]

32.4
[1.277]

(73.3 [2.888])

90 ±0.25[3.546 ±0.010]

15.7

±0.50

±0.020

Ø 16.5 [0.650 ]

0

-0.110

0

-0.004

Ø 36.5

Ø 17.46 [0.687]

16.5

+0.1

-0.2

+0.004

-0.008

[0.374 ]

9.5

+0.15

-0.25

+0.006

-0.01

Ø15 [0.591 ]

0

-0.018

0

-0.001

4

0

-0.03
0

-0.001

[0.158 ]

4

0

-0.03
0

-0.001

[0.158 ]

X

Ø 0.75 [0.030] X

01BA

±0.50 [0.020]

B

max

A

01FA01DA

1/4 Gas Drain port

31.4 ±0.50

[1.24 ±0.020]

Nut and washer supplied with pump

Recommended tightening torque: 45-55 Nm

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

Dimensions

SNM2NN, SNU2NN – 01DA, 01FA and 01BA

Standard porting drawing for 01DA, 01FA and 01BA

For unidirectional motors no case drain hole into the rear cover.

Bidirectional motors dimensions – 01DA, 01FA and 01BA

Frame size 6.0

Dimension A 45

B

Inlet/Outlet C/c

*

©

Danfoss | July 2021 BC319483612502en-000102 | 55

Before choosing this frame size, please apply to Danfoss technical department

For unidirectional SNU2NN dimensions see Port dimensions on page 44.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
01DA SNM2NN/8,0BN01DAM1C3C3NNNN/NNNNN 90 N•m [797 lb•in]

01FA SNM2NN/022BN01FAM1C7C7NNNN/NNNNN 90 N•m [797 lb•in]
01BA SNM2NN/017BN01BAM1C7C7NNNN/NNNNN 150 N•m [1328 lb•in]

For further details on ordering, see Model code on page 33.

D/d 30 [1.181] 40 [1.58]

E/e M6 M8

*

8.0 011 014 017 019 022 025

[1.771]

93.5

[3.681]

97.5

[3.838]

13.5

[0.531]

49

[1.929]

101.50
[3.996

107.5

[4.232]

52

[2.047]

111.5

[4.389]

20

[0.787]

56

[2.204]

59

[2.322]

121.5

[4.783]

125.5

[4.940]

23.5

[0.925]

3 [0.118 ]

Ø 80 [3.150 ]

9 [0.354]

Ø 16.5 [0.650 ]

Spline: B17x14 DIN 5482

Profile offset +0.6 [.024]

13.5 [0.531]

23.5 [0.952]

1 : 5

A

A-A

A

M12x1.25-6g

16.5 [0.650]

E/e

17.46

[0.687]

38 [1.496]

B max

12.5 [0.492]

7.2 [0.283]

5.7 [0.224]

19.3 [0.760]

C/c

45°

body width

(100 [3.937])

D/d

±0.20 [0.008]

A

±0.50

72

[2.835]

120 [4.724] max

92 [3.622] max

(44.5 [1.72])

65.5
[2.579]

34.5
[1.358]

(75.5 [2.972])

90

±0.25

±0.010

3.543

[ ]

0

-0.110

0

-0.004

-

0.060

-0.090

-0.002

-0.003

0

-0.025

0

-0.001

9 [0.354 ]

+0.30

-0.10

+0.012

-0.004

15.7±0.50 [0.618 ±0.020]

Ø 0.75 [0.030] X

X

(min full thd 12 [0.472] deep)

02DB 02AA

1/4 Gas
Drain port

31.4 [1.24 ]

±0.5

±0.0197

Nut and washer supplied with pump
Recommended tightening torque: 45-55 Nm

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

SNM2NN, SNU2NN – 02DB and 02AA

Standard porting drawing for 02DB and 02AA

For unidirectional motors no case drain hole into the rear cover.

Bidirectional motors dimensions – 02DB and 02AA

Frame size 6,0
A

41.1
[1.618]

B

96
[3.780]

43.1
[1.697]

100
[3.937]

C/c 15 [0.591] 20 [0.79]
D/d 35 [1.38] 40 [1.58]
E/e M6

*

* Before chosing this frame size, please apply to Danfoss technical department.

For unidirectional SNU2NN dimensions, see Port dimensions on page 44.

Model code examples and maximum shaft torque

56 | © Danfoss | July 2021 BC319483612502en-000102

Flange/drive gear Model code example Maximum shaft torque
02DB SNM2NN/025BN02DBM1B7B7NNNN/NNNNN 90 N•m [797 lb•in]

02AA SNM2NN/8,0BN02AAM1B5B5NNNN/NNNNN 140 N•m [1239 lb•in]

For further details on ordering, see Model code on page 33.

*

8,0 011 014 017 019 022 025

47.5
[1.870]

104
[4.094]

47.5
[1.870]

110
[4.331]

47.5
[1.870]

114
[4.488]

47.5
[1.870]

118
[4.646]

55
[2.165]

124
[4.882]

64.5
[2.539]

128
[5.039]

3.2 [0.127 ]

+0.20

0

+0.008

0

2 [0.079]

(min full thd 12 [0.477] deep)

E/e

Ø 34 [1.351]

7.2 [0.286]

19 [.755]

Ø 30 [1.192]

12 [0.477]

C/c

45°

X

O-ring 45.69 x 2.62

body width

(60 [2.384])

D/d

±0.20 [±0.008]

B

8.5 [0.335]

±0.50 [±0.02]

A

(60 [2.384])

103 [4.092] max

30

[1.192]

45.7
[1.816]

14.3

[0.568]

30

[1.192]

Ø 52 [2.066 ]

-0.030

-0.060

-0.001

-0.002

8 [0.318 ]

+0.025

-0.083

+0.001

-0.003

11.5

[0.457 ]

+0.27

0

+0.011

0

2.7 [0.107 ]

+0.70

0

+0.028

0

6.5 [0.258 ]

+0.20

0

+0.008

0

Ø 47.8 [1.899 ]

0

-0.20

0

-0.008

15.7 ±0.50 [0.624 ±0.020]

90 [3.576 ]

±0.25 ±0.010

Ø 0.75 [0.030] X

8 [0.315]

Coupling supplied with pump

±0.50 [±0.02]

1/4 gas drain port

31.4 ±0.50 [1.24 ±0.0197]

03CA

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

SNM2NN, SNU2NN – 03CA

Standard porting drawing for 03CA

For unidirectional motors no case drain hole into the rear cover.

Bidirectional motors dimensions – 03CA

Frame size 6,0

Dimension

A

B

Inlet/Outlet

C/c 15 [0.591] 20 [0.79]
D/d 35 [1.38] 40 [1.58]
E/e M6

*

Before chosing this frame size, please apply to Danfoss technical department.

*

8,0 011 014 017 019 022 025

38.6
[1.520]

40.6
[1.598]

45 [1.772]

85
[3.364]89[3.503]93[3.661]99[3.897]

103
[4.055]

107
[4.212]

52.5
[2.067]62[2.441]

113
[4.448]

For unidirectional SNU2NN dimensions, see Port dimensions on page 44.

Flange/drive gear Model code example Maximum shaft torque
03CA SNM2NN/014BN03CAM3B5B5NNNN/NNNNN 70 N•m [620 lb•in]

For further details on ordering, see Model code on page 33.

117
[4.606]

©

Danfoss | July 2021 BC319483612502en-000102 | 57

3 [0.118 ]

11.5

[0.453 ]

Ø 16.5 [0.650 ]

±0.50

±0.02

A

B

8.5 [0.335]

±0.50 [±0.02]

±0.50 [±0.02]

+0.27

0
+0.011

0

Spline:
B17x14 DIN 5482
Profile offset +0.6 [0.024]

13.5 [0.531]

26 [1.024]

A-A

A

A

1 : 5

X

(min full thd 12 [0.472] deep)

M12x1.25-6g

17.46

[0.687]

19 [0.748]

E/e

C/c

7.2 [0.283]

40.5 [1.594]

8.2 [0.323]

19.3 [0.760]

45°

body width

(60 [2.362])

D/d

±0.20 [±0.008]

90

±0.25 [0.010]

(60 [2.362])

103 [4.055] max

45.7
[1.799]

14.3
[0.563]

30

[1.181]30[1.181]

Ø0.75 [0.030] X

0

-0.110

0

-0.004

-0.025

-0.050

Ø 50 [1.969 ]

-0.001

-0.002

+0.30

-0.10

9 [0.354 ]

+0.012

-0.004

0

-0.025

0

-0.001

04DB / 05DB 04 Body

05 Body

04AA / 05AA

15.7 [0.618 ]

1/4 Gas Drain port

31.4 ±0.50 [1.24 ±0.02 ]

Nut and washer supplied with pump
Recommended tightening torque: 45-55 Nm

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

SNM2NN, SNU2NN–04DB/05DB and 04AA/05AA

Standard porting drawing for 04DB/05DB and 04AA/05AA

For unidirectional motors no case drain hole into the rear cover.

Bidirectional motors dimensions – 04/05DB and 04/05AA

*

8,0 011 014 017 019 022 025

38.6
[1.520]

40.6
[1.598]

45 [1.772]

85
[3.364]89[3.503]93[3.661]99[3.897]

103
[4.055]

52.5
[2.067]62[2.441]

107
[4.212]

113
[4.448]

130 N•m [1151 lb•in]

140 N•m [1239 lb•in]

Frame size 6,0

Dimension

A

B

Inlet/Outlet

C/c 15 [0.591] 20 [0.79]
D/d 35 [1.38] 40 [1.58]
E/e M6

*

Before choosing this frame size, please apply to Danfoss technical department.

For unidirectional SNU2NN dimensions, see Port dimensions on page 44.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
04DB SNM2NN/8,0BN04DBAM1B5B5NNNN/NNNNN

05DB SNM2NN/017BN05DBM1B5B5NNNN/NNNNN
04AA SNM2NN/8,0BN04AAM1B5B5NNNN/NNNNN
05AA SNM2NN/017BN05AAM1B5B5NNNN/NNNNN

For further details on ordering, see Model code on page 33.

58 | © Danfoss | July 2021 BC319483612502en-000102

117
[4.606]

A

A

A-A

7.9 [0.311]

23.8 [0.937]

B max

31.7

[1.248]

C/c

17.475 -17.729
[0.688 - 0.698]

12 [0.472]

6 [0.236]

body width

11 - 11.6 [0.433 - 0.457]

A

±0.5 [0.02]

132 [5.197] max

106.38 [4.188]

115.5 [4.547] max

R 48 [1.889] max

3.995 [0.157 ]

0

-0.025

0

-0.010

90±0.25

[3.543±0.01]

Ø 0.75 [0.03] X

X

06GA

Splined SAE J498-9T-16/32DP
flat root

side fit
(circular tooth thickness 0.127 [0.005]
less than standard class 1 fit)

06SA

20 [0.787]

31.7 [1.248]

23.8
[0.937]

7.9 [0.311]

Ø 15.456

[Dia 0.609 ]

0

-0.127

0

-0.005

9/16-18UNF-2B
Straight thread
O-ring boss

Straight thread
O-ring boss

31.4 ±0.5 [1.24 ±0.02 ]

M6-6H- THD 16 [0.630] deep

Ø 82.55 [3.250 ]

0

0

-0.02

Ø 15.875 [0.625 ]

0

-0.025

0

-0.01

15.7 ±0.50 [0.618 ±0.02 ]

-0.5

Technical Information

G

ear Motors Group 1, 2, and 3

Group 2 Gear motors

SNM2NN, SNU2NN, SKU2NN – 06SA, 06GA

Standard porting drawing for 06SA and 06GA

©

Danfoss | July 2021 BC319483612502en-000102 | 59

For unidirectional motors no case drain hole into the rear cover.

Bidirectional motors dimensions – 06SA and 06GA

Frame size 6,0

Dimension

A

B

Inlet/Outlet C/c 7/8–14UNF–2B, 16.7 [0.658] deep

*

Before chosing this frame size, please apply to Danfoss technical department.

For unidirectional SNU2NN, SKU2NN dimensions, see Port dimensions on page 44.

*

8,0 011 014 017 019 022 025

45
[1.772]47[1.850]49[1.920]52[2.047]54[2.205]56[2.205]59[2.323]61[2.402]

93.5
[3.681]

97.5
[3.839]

101.5
[3.996]

107.5
[4.232]

111.5
[4.390]

115.5
[4.547]

1 1/16–12UNF–2B,

18.0 [0.709] deep

121.5
[4.783]

125.5
[4.941]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Motor design

SNM3NN

SNM3NN is the Group 3 bidirectional motor available in the whole displacements range from 22 up to 90
cm3/rev [1.35 up to 5.38 in3/rev].

Configurations include European and SAE flanges and shafts (01BA, 01FA, 01DA, 02AA, 02FA, 02DB, 03BB,
03FB, 06AA, 06DD, 07BC, 07GA, 07SA).

60 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

SNU3NN

SNU3NN is the Group 3 unidirectional motor available in the whole displacements range from 22 up to 90
cm3/rev [1.35 up to 5.38 in3/rev].

The SNU3NN motor construction is derived from the correspondent pump SNP3.
Configurations include European and SAE flanges and shafts (01BA, 01FA, 01DA, 02AA, 02FA, 02DB, 03BB,

03FB, 03DB, 06AA, 06SA, 07BC, 07GA, 07SA).

Technical data

This table details the technical data for Group 3 gear motors based on the model and displacement
configuration.

Technical data for Group 3 gear motors

Frame size
022 026 033 038 044 048 055 063 075 090

Displacement

SNU3NN (unidirectional)
Peak pressure

Rated pressure

©

Danfoss | July 2021 BC319483612502en-000102 | 61

cm3/rev
[in3/rev]

bar [psi] 270

22.1
[1.35]

[3915]
250

[3625]

26.2
[1.60]

270
[3915]

250
[3625]

33.1
[2.02]

270
[3915]

250
[3625]

37.9
[2.32]

270
[3915]

250
[3625]

44.1
[2.69]

270
[3915]

250
[3625]

48.3
[2.93]

250
[3625]

230
[3336]

55.2
[3.36]

230
[3336]

210
[3045]

63.4
[3.87]

210
[3045]

190
[2755]

74.4
[4.54]

190
[2755]

170
[2465]

88.2
[5.38]

170
[2465]

150
[2175]

C

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Technical data for Group 3 gear motors (continued)

Minimum speed
Maximum speed
SNM3NN (bidirectional) motor in parallel
Peak pressure

Rated pressure

Minimum speed
Maximum speed
SNM3NN (bidirectional) motor in series
Peak pressure

Rated pressure

Minimum speed
Maximum speed
All (SNU3NN, SNM3NN)
Weight

Moment of inertia
of rotating
components

Frame size
022 026 033 038 044 048 055 063 075 090

min-1 (rpm) 800 800 800 800 800 800 800 600 600 600

2500 2500 2500 2500 2300 2300 2300 2300 2100 2100

bar [psi] 270

min-1 (rpm) 800 800 800 800 800 800 800 800 800 800

bar [psi] 250

min-1 (rpm) 800 800 800 800 800 800 800 800 800 800

kg [lb]

x 10-6kg•m
[x 10-6 lb•ft2]

2

270

270

270

270

250

230

210

190

[3915]

[3915]

[3915]

[3915]

[3915]

[3625]

[3336]

[3045]

[2755]

250

250

250

250

250

230

210

190

170

[3625]

[3625]

[3625]

[3625]

[3625]

[3336]

[3045]

[2755]

[2465]

2500 2500 2500 2500 2300 2300 2300 2300 2100 2100

250

250

250

250

230

210

190

170

[3625]

[3625]

[3625]

[3625]

[3625]

[3336]

[3045]

[2755]

[2465]

250

250

250

250

250

230

210

190

170

[3625]

[3625]

[3625]

[3625]

[3625]

[3336]

[3045]

[2755]

[2465]

2500 2500 2500 2500 2300 2300 2200 2100 2100 2100

6.8

6.8

7.2

7.3

7.5

7.6

7.8

8.1

8.5

[15.0]

[15.0]

[15.8]

[16.1]

[16.5]

[16.8]

[17.3]

[17.9]

[18.7]

198

216

246

267.2

294.2

312.2

342.3

378.3

426.4

[4698]

[5126]

[5837]

[6341]

[6981]

[7408]

[8123]

[8977]

[10 118]

170
[2465]

150
[2175]

150
[2175]

150
[2175]

8.9
[19.6]

486.5
[11 545]

Model code

1 kg•m2 = 23.68 lb•ft

2

Caution

The rated and peak pressure mentioned are for motors with flanged ports only. When threaded ports are
required a derated performance has to be considered. To verify the compliance of a high pressure
application with a threaded ports pump apply to a Danfoss representative.

A Family

A B C D E F G H I J K L M N O

● ● ● ● ● ● /

SNU3NN
SNU3GN
SNM3NN
SNM3NL
SNM3GN
SNM3GL
SNM3DN

Gr3 Unidirectional Motor

Gr3 Unidirectional Motor+Anticav.Check Valve

Gr3 Bidirectional Motor - Axial drain on cover

Gr3 Bidirectional Motor-Vert.drain on rear cover

Gr3 Bidirectional Motor-Anticav.Check Valve - Axial drain on cover

Gr3 Bidirectional Motor-Anticav.Check Valve - Vert.drain on rear cover

Gr3 Bidirectional Motor-Internal drain valve

62 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

B Displacement

A B C D E F G H I J K L M N O

● ● ● /

022
026
033
038
044
048
055
063
075
090

22,1 cc

26,2 cc

33,1 cc

37,9 cc

44,1 cc

48,3 cc

55,2 cc

63,4 cc

74,4 cc

88,2 cc

C Rotation

A B C D E F G H I J K L M N O

● /

L
R
B

Left (Counterclockwise)

Right (Clockwise)

Bidirectional

D Project version (value representing a change to the initial project)

A B C D E F G H I J K L M N O

● /

N

Std Version of Project

E Mounting flange

A B C D E F G H I J K L M N O

● ● /

Code Description(Type of flange • Type of drive gear • Preferred ports for configuration)

01
02
03
06
07
08
09

91

Pilot Ø50,8+4 holes (98,4x128,1)

Pilot Ø50,8+4 holes (98,4x137)

Pilot Ø60,3+4 holes (114,3x149,5)

Pilot Ø105+4 holes (102,0x145,0)

SAE B-pilot Ø101,6 -2 holes

SAE C-pilot Ø127 -4 holes

SAE A-pilot Ø82,55 -2 holes

Outrigger bearing typo 01 -Taper 1:8 M14x1,5 key 4x7,5

©

Danfoss | July 2021 BC319483612502en-000102 | 63

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Code Description(Type of flange • Type of drive gear • Preferred ports for configuration)

9Y

D7

F Drive Gear

Outrigger bearing type 07 -taper shaft 1:8-5/8-18UNF- Key6,375 with Dust Cover

Pilot Ø101,6+2 holes - for double shaft seal - Special 07

A B C D E F G H I J K L M N O

● ● /

AA
BA
BB
BC

BP

DA
DD
FA
FB
GA

GB

SA
SB

RA

SH

G Rear Cover

A B C D E F G H I J K L M N O

Taper 1:5-M16x1,5-Key 5

Taper 1:8-M14x1,5-Key 4

Taper 1:8-M16x1,5-Key 4,79

Taper 1:8-5/8-18UNF-2A-Key 6,375

Taper 1:8-5/8-18UNF-2A-Key 6,375 with NUT & WASHER (for flange 07)

DIN5482 B22x19 L=24 (for flange type 01)

DIN 5482 B28x25 L28 (for flange type 06)

ParallelØ20-Key 5x5 L30 (for flange type 01-02)

Parallel Ø22-Key 5x5 L40 (for flange type 03)

Parallel Ø22,225 x L25,4-Key 6,375x6,375 L25,4

ParallelØ22,225xL25,4-Key 6,375x6,375x25,4+thd hole:1/4-20UNC-2B

SAE J498-13T-16/32-SAE B

SAEJ498-13T-16/32-SAE A (for flange type 09)

SAEJ498-14T-12/24-SAE C- 4 bolt (for flange type 08)

SAE J498-15T-16/32 (for flange type 07)

● ● /

P1
M1
M2
M6
MF
L1
L2
L6
LT
D1

Std cover for unidirectional motors

Std cover motor axial drain on cover M14x1,5

Std cover motor axial drain on cover M12x1,5 ISO6149

Std cover motor axial drain on cover 9/16-18UNF-2B

Std cover motor axial drain on cover drain 3/8 Gas

Cover motor with radial drain on cover - Vertical M14x1,5

Cover motor with radial drain on cover - Horizontal M14x1,5

Cover motor with radial drain on cover - Vertical 9/16-18UNF-2B

Cover motor with radial drain on cover - Vertical 9/16-18UNF-2B drain up

Cover motor without drain (internal drained) - for SNM3DN series

H Inlet size; I Outlet size

A B C D E F G H I J K L M N O

● ● ● ● /

64 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

A2

A3 25x26,19x52,37x3/8-16UNC
A4 31x30,18x58,72x7/16-14UNC

A5 37,5/27x35,71x69,85x1/2-13UNC

B7 20x40xM6
BA 18x55xM8
BB 27x55xM8
BC

C3 13,5x30xM6
C7 20x40xM8
CA 27x51xM10
CD 36x62xM10
E5 7/8-14UNF
E6 1-1/16-12UN
E8 1-5/16-12UN
E9 1-5/8-12UN
EA 1-7/8-12UN
H8 M27x2-ISO6149
H9 M33x2-ISO6149
F5 BSP 3/4 GAS
F6 BSP 1 GAS
F7

18,5x22,23x47,63x3/8­16UNC

36x55xM8

BSP 1-1/4 GAS

M5
M6
M7

MG
MH
MN
MR

25x52,37x26,19xM10

31x30,18x58,72xM10

37,5x35,71x69,85xM12

25/20x52,37x26,19xM10(=) - Special

31x30,18x58,72xM10 deep18 (=)

31x30,18x58,72xM10 deep12 (=)

37,5x35,71x69,85xM12 deep20 (=)

J Ports pos & Spec body

A B C D E F G H I J K L M N O

● ● /

NN

*

PL

©

Danfoss | July 2021 BC319483612502en-000102 | 65

Std from catalog

Inlet port Left position looking gear drive from front flange

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

PR*
ZZ

*

to be used if inlet-outlet are different

Inlet port Right position looking gear drive from front flange

Port Bx-Bx in the center of the body

K Seals

A B C D E F G H I J K L M N O

N
B
D
X
Y
Z

Standard NBR seals

VITON seals

NBR seals + VITON shaft seal with dust lip

NBR seals + Dust Cover

VITON seals + Dust Cover

VITON shaft seal + Dust Cover

L Screws

A B C D E F G H I J K L M N O

N
B

Std burnished screws

Geomet screws - Anticorrosion screws

● /

● /

M Set valves

A B C D E F G H I J K L M N O

NNN

No valve

N Type of mark

A B C D E F G H I J K L M N O

N
A
Z

Standard Danfoss Marking

Standard Danfoss Marking+Customer Code-Special

Without Marking

O Mark position

A B C D E F G H I J K L M N O

N
A

Std Marking position (on top)

Special Marking position on the bottom

/ ● ● ●

/ ●

/ ●

66 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Motor performance graphs

The following graphs on the next pages provide typical inlet flow and output torque for Group 3 motors
at various working pressures. Data were taken using ISO VG46 petroleum /mineral based fluid at 50 °C
[122 °F] (viscosity = 28 mm2/s [132 SUS]).

©

Danfoss | July 2021 BC319483612502en-000102 | 67

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

68 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

©

Danfoss | July 2021 BC319483612502en-000102 | 69

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Flange, shaft, and port configurations

Motor Code Flange Shaft Port

SNM3
SNU3

01BA

pilot Ø 50.8 mm
[2.0 in]
European 01 4­bolt

1:8 tapered

European
flanged port +
pattern

SNM3
SNU3

SNM3
SNU3

SNM3
SNU3

SNM3
SNU3

SNM3
SNU3

02BA

03BB

06AA

07BC

01FA

pilot Ø 50.8 mm
[2.0 in]
European 02 4­bolt

pilot Ø 60.3 mm
[2.374 in]
European 03 4­bolt

pilot Ø 105 mm
[4.133 in]
German 4-bolt

SAE B
pilot Ø 101.6 2­bolt

pilot Ø 50.8 mm
[2.0 in]
European 01 4­bolt

1:8 tapered

1:8 tapered

1:5 tapered

1:8 tapered

Ø 20 mm [0.787
in] parallel

European
flanged port +
pattern

European
flanged port +
pattern

German std
ports port X
pattern

Vertical four bolt
flanged port

European
flanged port +
pattern

SNM3
SNU3

SNM3
SNU3

SNM3
SNU3

SNM3
SNU3

02FA

03FB

07GA

01DA

pilot Ø 50.8 mm
[2.0 in]
European 02 4­bolt

pilot Ø 60.3 mm
[2.374 in]
European 03 4­bolt

SAE B
pilot Ø 101.6
mm 2-bolt

pilot Ø 50.8 mm
[2.0 in]
European 01 4­bolt

Ø 20 mm [0.787
in] parallel

Ø 22 mm [0.866
in] parallel

Ø 22.225 mm
[0.875 in]
parallel

Splined shaft
13T – m 1.60
DIN 5482 – B22 x
19

European
flanged port +
pattern

European
flanged port +
pattern

Vertical four bolt
flanged port

European
flanged port +
pattern

70 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Motor Code Flange Shaft Port

SNM3
SNU3

06DD

pilot Ø 105 mm
[4.133 in]
German 4-bolt

Splined shaft
15T – m 1.60
DIN 5482 – B28 x
25

German std
ports port X
pattern

Shaft and flange availability

SNM3
SNU3

SNM3
SNU3

07SA

08RA pilot Ø 127mm

SAE B
pilot Ø 101.6
mm 2-bolt

[5.0 in] SAE C, 4­bolt

Splined shaft
SAE J498 13T –
16/32DP

Splined shaft
SAE J498 14T ­12/24DP

Vertical four bolt
flanged port

Vertical four bolt
flanged port

This table details the standard Group 3 shafts and flange combinations that are currently available with
the maximum shaft torque limits.

Shaft Mounting flange code with maximum torque in Nm [lb*in]
CodeDescription 01 02 03 06 07 08 09

Taper 1:5-M16x1,5-Key

AA

5
Taper 1:8-M14x1,5-Key

BA

4
Taper 1:8-M16x1,5-Key

BB

4,79
Taper

BC

1:8-5/8-18UNF-2A-Key
6,375

Taper

BP

1:8-5/8-18UNF-2A-Key
6,375 with NUT &
WASHER
(for flange 07)

DIN 5482 B22x19 L=24

DA

(for
flange type 01)

DIN 5482 B28x25 L28

DD

(for
flange type 06)

Parallel Ø20-Key 5x5

FA

L30 (for flange type
01-02)

Parallel Ø22-Key 5x5

FB

L40 (for flange type 03)
Parallel Ø22,225 x

GA

L25,4-Key 6,375x6,375
L25,4

350 [3097] 350 [3097]

500 [4425]

290 [2566] 290 [2566]

210 [1858] 210 [1858]

300 [2655]

300 [2655]

300 [2655]

300 [2655]

450 [3982]

230 [2035]

©

Danfoss | July 2021 BC319483612502en-000102 | 71

g

CB

h

x
y

45o

A

a

c (4 holes min. full thd.

20 mm [0.787 in] deep)

i (4 holes min. full thd.

20 mm [0.787 in] deep)

z (4 holes min. full thd.

20 mm [0.787 in] deep)

b

v

D

FE

d

f

e

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Shaft Mounting flange code with maximum torque in Nm [lb*in]
CodeDescription 01 02 03 06 07 08 09

GB

SA

SB

RA

SH

Parallel
Ø22,225xL25,4- Key
6,375x6,375x25,4+thd
hole:1/4-20UNC-2B

SAE J498-13T-16/32­SAE B

SAE J498-13T-16/32­SAE A
(for flange type 09)

SAE J498-14T-12/24­SAE C-4
bolt (for flange type

08)
SAE J498-15T-16/32-

(for
flange type 07)

230 [2035]

270 [2389]

270 [2389]

400 [3540]

400 [3540]

Ports dimensions

Bidirectional motor ports

Available ports for Group 3 bidirectional motors

72 | © Danfoss | July 2021 BC319483612502en-000102

g

B

h

45o

A

a

c (4 holes min.

full thd.

20 mm [0.787 in] deep)

i (4 holes min. full thd.

20 mm [0.787 in] deep)

b

v

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Ports dimensions for bidirectional motors SNM3NN

Dimensions a b v c g h i x y z d e f
Frame

Port type A B C D E F

size

Drain

022

026

033

038

044

048

055

063

075

090

25.4

[1.0]

25.4

[1.0]

31.8

[1.251]

31.8

[1.251]

31.8

[1.251]

31.8

[1.251]

31.8

[1.251]

31.8

[1.251]

31.8

[1.251]

31.8

[1.251]

26.19

[1.031]

26.19

[1.031]

30.18

[1.188]

30.18

[1.188]

30.18

[1.188]

30.18

[1.188]

30.18

[1.188]

30.18

[1.188]

30.18

[1.188]

30.18

[1.188]

52.37

[2.061]

52.37

[2.061]

58.72

[2.311]

58.72

[2.311]

58.72

[2.311]

58.72

[2.311]

58.72

[2.311]

58.72

[2.311]

58.72

[2.311]

58.72

[2.311]

3/8–

16UNC–

2B

3/8–

16UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

7/16–

14UNC–

2B

27

[1.063]55[2.165]

27

[1.063]55[2.165]

27

[1.063]55[2.165]

27

[1.063]55[2.165]

27

[1.063]55[2.165]

27

[1.063]55[2.165]

27

[1.063]55[2.165]

36

[1.417]55[2.165]

36

[1.417]55[2.165]

36

[1.417]55[2.165]

M14 x 1.5 9/16–18UNF–

M8

20

[0.79]40[1.58]

M8

20

[0.79]40[1.58]

M8

27

[1.063]51[2.008]

M8

27

[1.063]51[2.008]

M8

27

[1.063]51[2.008]

M8

27

[1.063]51[2.008]

M8

27

[1.063]51[2.008]

M8

36

[1.417]62[2.441]

M8

36

[1.417]62[2.441]

M8

36

[1.417]62[2.441]

M8 M26x1.5 15/16–

12UN–

2B

M8 M26x1.5 15/16–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

M10 M33x2 15/8–

12UN–

2B

¾ Gas

(BSPP)

¾ Gas

(BSPP)

1 Gas

(BSPP)

1 Gas

(BSPP)

1 Gas

(BSPP)

1 Gas

(BSPP)

1 Gas

(BSPP)

Gas

(BSPP)

Gas

(BSPP)

Gas

(BSPP)

2B

1¼

1¼

1¼

Unidirectional motor ports

Available ports for Group 3 unidirectional motors

©

Danfoss | July 2021 BC319483612502en-000102 | 73

C

x

y

z (4 holes min. full thd.

20 mm [0.787 in] deep)

D

FE

d

f

e

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Ports dimensions for unidirectional motors SNU3NN

Port type A B

Dimensions a b c v g h i

Frame size 022 Outlet

Inlet 20 [0.79]

026 Outlet 20 [0.79]

Inlet 20 [0.79]

033 Outlet 27 [1.063]

Inlet 20 [0.79]

038 Outlet 27 [1.063]

Inlet 20 [0.79]

044 Outlet 27 [1.063]

Inlet 27 [1.063]

048 Outlet 27 [1.063]

Inlet 27 [1.063]

055 Outlet 27 [1.063]

Inlet 27 [1.063]

063 Outlet 36 [1.417]

Inlet 27 [1.063]

075 Outlet 36 [1.417]

Inlet 27 [1.063]

090 Outlet 36 [1.417]

Inlet 27 [1.063]

20 [0.79] 40 [1.58] M8 3/8–16UNC–2B 27 [1.063] 55 [2.165] M8

40 [1.58] M8 3/8–16UNC–2B 18 [0.709] 55 [2.165] M8

40 [1.58] M8 3/8–16UNC–2B 27 [1.063] 55 [2.165] M8

40 [1.58] M8 3/8–16UNC–2B 18 [0.709] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

40 [1.58] M8 3/8–16UNC–2B 18 [0.709] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

40 [1.58] M8 3/8–16UNC–2B 18 [0.709] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

51 [2.008] M10 3/8–16UNC–2B 18 [0.709] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

51 [2.008] M10 3/8–16UNC–2B 18 [0.709] 55 [2.165] M8

51 [2.008] M10 ½–13UNC–2B 27 [1.063] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 18 [0.709] 55 [2.165] M8

62 [2.441] M10 ½–13UNC–2B 36 [1.417] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

62 [2.441] M10 ½–13UNC–2B 36 [1.417] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

62 [2.441] M10 ½–13UNC–2B 36 [1.417] 55 [2.165] M8

51 [2.008] M10 7/16–14UNC–2B 27 [1.063] 55 [2.165] M8

Unidirectional motor ports

Available ports for Group 3 unidirectional motors

74 | © Danfoss | July 2021 BC319483612502en-000102

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Ports dimensions for unidirectional motors SNU3NN

Port type C D E F

Dimensions x y z d e f

Frame size 022 Outlet

Inlet 20 [0.79]

026 Outlet 20 [0.79]

Inlet 20 [0.79]

033 Outlet 27 [1.063]

Inlet 20 [0.79]

038 Outlet 27 [1.063]

Inlet 20 [0.79]

044 Outlet 27 [1.063]

Inlet 27 [1.063]

048 Outlet 27 [1.063]

Inlet 27 [1.063]

055 Outlet 27 [1.063]

Inlet 27 [1.063]

063 Outlet 36 [1.417]

Inlet 27 [1.063]

075 Outlet 36 [1.417]

Inlet 27 [1.063]

090 Outlet 36 [1.417]

Inlet 27 [1.063]

20 [0.79] 40 [1.58] M8 M26 x 1.5 ¾ Gas (BSPP) 15/16–12UN–2B

40 [1.58] M8 M26 x 1.5 ¾ Gas (BSPP) 11/16–12UN–2B

40 [1.58] M8 M26 x 1.5 ¾ Gas (BSPP) 15/16–12UN–2B

40 [1.58] M8 M26 x 1.5 ¾ Gas (BSPP) 11/16–12UN–2B

51 [2.008] M10 M33x2 1 Gas (BSPP) 15/8–12UN–2B

40 [1.58] M8 M26 x 1.5 ¾ Gas (BSPP) 15/16–12UN–2B

51 [2.008] M10 M33x2 1 Gas (BSPP) 15/8–12UN–2B

40 [1.58] M8 M26 x 1.5 ¾ Gas (BSPP) 15/16–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/8–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/16–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/8–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/16–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 17/8–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/8–12UN–2B

62 [2.441] M10 M42 x 2 1¼ Gas (BSPP) 17/8–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/8–12UN–2B

62 [2.441] M10 M42 x 2 1¼ Gas (BSPP) 17/8–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/8–12UN–2B

62 [2.441] M10 M42 x 2 1¼ Gas (BSPP) 17/8–12UN–2B

51 [2.008] M10 M33 x 2 1 Gas (BSPP) 15/8–12UN–2B

Anti-cavitation check valve - SNM3GN

Danfoss offers an optional integral anti-cavitation check valve integrated in Group 3 motors bearing
blocks. Available for all the displacements, the valve directs internally the flow from the motor outlet to
the inlet, when the outlet pressure gets higher then the inlet one.

Valve schematic diagram

©

Danfoss | July 2021 BC319483612502en-000102 | 75

46.5 [1.83]

34

[1.338]

46

[1.118]

6

[0.24]

40

[1.574]

24 [0.944]

5

[0.196]

20 [0.787]

24

[0.944]

14.5 [0.571]

8 [0.314]

22 [0.866]

5 [0.196]

±0.75 [±0.03]

121.5 [4.783] max

98.4 [3.874]

115 ±0.25 [4.527 ±0.010]

Ø 50.8

[2.0 ]

-0.030

-0.076

-0.001

-0.003

Ø 20 [0.787 ]

0

-0.021

0

-0.0008

Ø 22 [0.866]

M8 (full thd 12 [0.472] deep)
M10 (full thd 17 [0.669] deep)

E/e

C/c

B max

D/d

A

< 40: ±0.20 [0.008]

> 40: ±0.25 [0.010]

85.2 [3.354]

42.9 [1.689]

(128.1 [5.043])

(54.3 [2.137])

148 [ 5.826] max

(96.2 [3.787])

150.5 [5.925] max

M14x1.5-6g

22.22 ±0.50
[0.874 ±0.020]

44.44

±0.75

[1.749 ±0.03]

1:8

B - B

A - A

B

B

A

A

11.0-11.5 [0.433-0.453]

Spline:
B22x19 DIN 5482
(Profile offset -0.10 [0.024])

Ø0.75 [0.030] X

Distance from
front flange
to shoulder

Distance from
front flange
to shoulder

5 [0.196 ]

0

-0.030

0

-0.001

-0.008

22 [0.866 ]

+0.10

-0.20

+0.004

Ø 21.5

[0.846 ]

0

-0.130

0

-0.005

M8 (full thd 18 [0.708] deep)

[0.453 ]

+0.30

+0.010

-0.1

0

-0.004

4

0 0

-0.030

[0.158 ]

-0.001

11.5

X

M14x1.5-6H
Drain port

01BA01DA01FA

Nut and washer supplied with pump

Recommended tightening tor que: 75-85 Nm

mm

[in]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Anticavitation check valve cross section

Dimensions

SNM3NN, SNU3NN – 01FA, 01DA and 01BA

Standard porting drawing for01FA, 01DA and 01BA

76 | © Danfoss | July 2021 BC319483612502en-000102

Bidirectional motors dimensions – 01FA, 01DA and 01BA

Frame size 022 026 033 038 044 048 055 063 075 090

Dimension

A

B

63.0
[2.480]

132.5
[5.216]

64.5
[2.539]

135.5
[5.334]

67.0
[2.637]

140.5
[5.531]

68.8
[2.708

144.0
[5.669]

71.0
[2.795]

148.5
[5.846]

72.5
[2.854]

151.5
[5.964]

75.0
[2.952]

156.5
[6.161]

78.0
[3.070]

162.5
[6.397]

82.0
[3.228]

170.5
[6.712]

87.0
[3.425]

180.5
[7.106]

46.5 [1.83]

34 [1.338]

46 [1.118]

6 [0.236]

40 [1.574]

24 [0.944]

5 [0.196]

20 [0.787]

24

[0.944]

14.5 [0.571]

8 [0.314]

22 [0.866]

5 [0.196]

±0.75 [±0.03]

115 ±0.25 [4.527 ±0.010]

Ø 50.8

[2.0 ]

-0.030

-0.076

-0.001

-0.003

Ø 20 [0.787 ]

0

-0.021

0

-0.0008

Ø 22 [0.866]

M8 (full thd 12 [0.472] deep)
M10 (full thd 17 [0.669] deep)

E/e

C/c

B max

D/d

A

< 40: ±0.20 [0.008]

> 40: ±0.25 [0.010]

148 [ 5.826] max

M14x1.5-6g

22.22 ±0.50

[0.874 ±0.02]

1:8

B - B

A - A

B

B

A

A

11.0-11.5 [0.433-0.453]

Spline:
B22x19 DIN 5482
(Profile offset -0.10 [0.024])

Ø0.75 [0.030] X

Distance from
front flange
to shoulder

Distance from
front flange
to shoulder

5 [0.196 ]

0

-0.030

0

-0.001

-0.008

22 [0.866 ]

+0.10

-0.20

+0.004

Ø 21.5

[0.846 ]

0

-0.130

0

-0.005

M8 (full thd 18 [0.708] deep)

[0.453 ]

+0.30

+0.010

-0.10

-0.004

4

0 0

-0.030

[0.158 ]

-0.001

11.5

X

body width

124.5 [4.9] max

98.4 [3.87]
58 [2.28] max

105 [4.13] max

163 [6.42] max

(137 [5.39])

92 [3.62] 45 [1.77]

44.44 ±0.75 [1.749 ±0.03]

M14x1.5-6H
Drain port

02BA

02DA

02FA

Nut and washer supplied with pump

Recommended tightening tor que: 75-85 Nm

mm

[in]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Bidirectional motors dimensions – 01FA, 01DA and 01BA (continued)

Frame size 022 026 033 038 044 048 055 063 075 090

Inlet/Outlet

For unidirectional motors dimensions see Ports dimensions on page 72.

For unidirectional motors no case drain hole into the rear cover.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
01FA SNM3NN/075BN01FAM1CACANNNN/NNNNN 210 N•m [1858 lb•in]

01DA SNM3NN/026BN01DAM1C7C7NNNN/NNNNN 290 N•m [2566 lb•in]
01BA SNM3NN/044BN01BAM1CACANNNN/NNNNN 350 N•m [3097 lb•in]

For further details on ordering, see Model code on page 62.

C/c 20 [0.79] 27 [1.063]
D/d 40 [1.58] 51 [2.007]
E/e M8 M10

SNM3NN, SNU3NN – 02FA, 02DB and 02AA

Standard porting drawing for 02FA, 02DB and 02AA

71.0
[2.795]

148.5
[5.846]

72.5
[2.854]

151.5
[5.964]

75.0
[2.952]

156.5
[6.161]

78.0
[3.070]

162.5
[6.397]

©

Danfoss | July 2021 BC319483612502en-000102 | 77

Bidirectional motors dimensions – 02FA, 02DA and 02BA

Frame size 022 026 033 038 044 048 055 063 075 090

Dimension

Inlet/Outlet

For unidirectional motors dimensions Ports dimensions on page 72.

For unidirectional motors no case drain hole into the rear cover.

A

63.0
[2.480]

B

132.5
[5.216]

64.5
[2.539]

135.5
[5.334]

C/c 20 [0.79] 27 [1.063]
D/d 40 [1.58] 51 [2.007]
E/e M8 M10

67.0
[2.637]

140.5
[5.531]

68.8
[2.708

144.0
[5.669]

82.0
[3.228]

170.5
[6.712]

87.0
[3.425]

180.5
[7.106]

X

body width

Distance from front flange
to cone reference diameter

-0.030

-0.076

-0.012

-0.003

A

D/d ±0.25 [±0.010]

B max

22.22 ±0.50 [0.875±0.020 ]

Ø60.3 [2.374 ]

115 ±0.25[4.527 ±0.010]

E/e

C/c

Ø 25 [0.984]

M16x1.5-6g

22 [0.866]

60 [2.362]

146.5 [5.768] max

114.3 [4.5]

9 [0.354]

50 [1.968]

59 [2.323]

28.5 [1.122]

28

[1.102]

14.5 [0.571]

17.5 [0.689]

1:8

M10 (full thd 17 [0.669] deep)

±0.75 [±0.030]

8 [0.315]

B-B

B

B

148 [ 5.826] max

(149.5 [ 5.885])

100 [ 3.937]

49.5
[ 1.949]

116 [4.566] max

65.5 [2.578] max

181.5 [ 7.145] max

4.79
[0.189 ]

0

-0.30

0

-0.012

-0.010

13.5 [0.532 ]

+0.15

-0.25

+0.006

Ø 22 [0.866 ]

0

-0.021

0

-0.0008

A - A

A

A

Distance from
front flange
to shoulder

5 [0.196 ]

0

-0.030

0

-0.001

-0.008

24 [0.945 ]

+0.10

-0.20

+0.004

M8 (full thd 18 [0.708] deep)

To rque for nut: 95-105 Nm

11.0-11.5 [0.433-0.453]

Ø0.75 [0.030] X

44.44 ±0.75 [1.749 ±0.03]

M14x1.5-6H
Drain port

03BB03FB

mm

[in]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
02FA SNM3NN/044BN02FAM1CACANNNN/NNNNN 210 N•m [1858 lb•in]

02DA SNM3NN/033BN02DAM1CACANNNN/NNNNN 290 N•m [2566 lb•in]
02BA SNM3NN/026BN02BAM1C7C7NNNN/NNNNN 350 N•m [3097 lb•in]

For further details on ordering, see Model code on page 62.

SNM3NN, SNU3NN – 03FB and 03BB

Standard porting drawing for 03FB and 03BB

Bidirectional motors dimensions – 03FB and 03BB

Frame size 022 026 033 038 044 048 055 063 075 090

Dimension

78 | © Danfoss | July 2021 BC319483612502en-000102

Inlet/Outlet

For unidirectional motors dimensions, see Ports dimensions on page 72.

For unidirectional motors no case drain hole into the rear cover.

A

61
[2.4]63[2.48]

B

132.5
[5.22]

C/c 18 [0.71] 27 [1.063]
D/d 55 [2.16]

135.5
[5.33]

E/e M8

64.5
[2.54]

140.5
[5.53]

66.5
[2.62]

144.0
[5.67]

69.5
[2.74]

148.5
[5.85]

72.5
[2.854]75[2.95]78[3.07]82[3.23]87[3.43]

151.5
[5.96]

156.5
[6.16]

162.5
[6.4]

170.5
[6.71]

180.5
[7.11]

11.0-11.5 [0.433-0.453]

Ø0.75 [0.030] X

40 [1.574]

1:5

45

o

28 [1.102]

8 [0.314]

22 [0.866]

25

[0.984]

51 [2.007]

23.5 [0.925]

15 [0.590] 11 [0.433]

7 [0.275]

±0.75 [±0.03]

M8 (full thd 12 [0.472] deep)

E/e

C/c

B max

D/d

A

A - A

A

A

Spline:
B28x25 DIN 5482
(Profile offset: 0.202 [0.008])

Distance from front
flange to shoulder

5 [0.196 ]

0

-0.030

0

-0.001

Ø 27.5

[1.082 ]

0

-0.130

0

-0.005

[0.512 ]

+0.30

+0.010

-0.1

0

-0.0

04

13.0

123.5 [4.862] max

102.0 [4.015]

115 ±0.25 [4.527 ±0.010]

±0.25 [0.010]

22.22 ±0.50
[0.874 ±0.020]

X

body width

-0.036

-0.090

-0.001

-0.003

Ø105 [4.133 ]

Ø

25 [0.984]

M16x1.5-6g

108 [4.251] max

58.5 [2.303] max

148 [ 5.826] max

166.5 [ 6.555] max

(145 [5.708])

97 [3.818]

48 [1.889]

44.44 ±0.75 [1.749 ±0.03]

M14x1.5-6H
Drain port

06DD 06AA

To rque for nut: 95-105 Nm

mm

[in]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
03FB SNM3NN/063BN03FBM1CACANNNN/NNNNN 300 N•m [2655 lb•in]

03BB SNM3NN/090BN03BBM1CACANNNN/NNNNN 500 N•m [4425 lb•in]

For further details on ordering, seeModel code on page 62.

SNM3NN, SNU3NN – 06AA

Standard porting drawing for 06AA

Bidirectional motors dimensions – 06DD AND 06AA

Frame size 022 026 033 038 044 048 055 063 075 090
A

63.0
[2.480]

B

132.5
[5.216]

C/c 20 [0.79] 27 [1.063]

©

Danfoss | July 2021 BC319483612502en-000102 | 79

D/d 40 [1.58] 51 [2.007]
E/e M8 M10

For unidirectional motors dimensions, see Ports dimensions on page 72.

For unidirectional motors no case drain hole into the rear cover.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
06DD SNM3NN/044BN06DDM1BBBBNNNN/NNNNN 300 N•m [2655 lb•in]

06AA SNM3NN/022BN06AAM1BABANNNN/NNNNN 450 N•m [3982 lb•in]

For further details on ordering, see Model code on page 62.

64.5
[2.539]

135.5
[5.334]

67.0
[2.637]

140.5
[5.531]

68.8
[2.708

144.0
[5.669]

71.0
[2.795]

148.5
[5.846]

72.5
[2.854]

151.5
[5.964]

75.0
[2.952]

156.5
[6.161]

78.0
[3.070]

162.5
[6.397]

82.0
[3.228]

170.5
[6.712]

87.0
[3.425]

180.5
[7.106]

±0.75 [±0.03]

(full thd 20 [0.787] deep)

F/f

B max

D/d

A

6.375 [0.250 ]

0

-0.025

0 0

-1.5 [0.059]

0

-0.001

115 ±0.25 [4.527 ±0.01]

±0.25 [0.01]

C/c

E/e

±0.25 [0.010]

22.22 ±0.50 [0.874 ±0.020]

body width

0

-0.127

0

-0.005

Ø21.806 [0.858 ]

176.5 [6.948] max

R 61 [2.402] max

146.05 [5.75]

41.2 [7.622]

41.2 [7.622]

33.3 [1.311]

33.3 [1.311]

25.0 [0.984]

7.9 [0.311]

7.9 [0.311]

7.9 [0.311]

13.5 [0.531]

9.5 [0.374]

157 [ 6.181] max

14.15-14.75 [0.557-0.580]

6.35-5.25 [0.25-0.206]

24.76-25.07 [0.974-0.987]

Ø0.75 [0.03]

X

Ø 22.225

[0.875 ]

0

-0.025

0

-0.001

Ø 101.6

[4.0 ]

0

-0.05

0

-0.002

X

A

A

B

B

A-A

6.375 [0.250 ]

0

-0.025

0

-0.001

3.33-3.07 [0.131-0.12]

B-B

Splined:
SAE J498-13T-16/32DP
Flat root side fit
(circular tooth thick ness

0.127 [0.005] less than
standard class 1 fit)

9/16-18UNF-2B
Drain port

5/8-18UNF-2A

28.4 [1.118]

59.4 [2.338]

42.9 [1.689]

23.1 [0.909]

Ø 22.225 [0.875]

Cone reference diameter

Distance from
front flange
to shoulder

Distance from
front flange
to shoulder

Ø 4 ±0.1[0.157±0.004 ]

44.44 ±0.75 [1.749

±0.03

]

07GA07SA07BC

1:8

mm

[in]

Technical Information

G

ear Motors Group 1, 2, and 3

Group 3 Gear motors

SNM3NN, SNU3NN – 07BC, 07SA and 07GA

Standard porting drawing for 07BC, 07SA and 07GA

Bidirectional motors dimensions – 07BC, 07SA and 07GA

Frame size 022 026 033 038 044 048 055 063 075 090

Dimension

Inlet/Outlet

A

63.0
[2.480]

B

132.5
[5.216]

64.5
[2.539]

135.5
[5.334]

67.0
[2.637]

140.5
[5.531]

C/c 25.4 [1] 31.8 [1.251]

68.8
[2.708

144.0
[5.669]

71.0
[2.795]

148.5
[5.846]

72.5
[2.854]

151.5
[5.964]

75.0
[2.952]

156.5
[6.161]

78.0
[3.070]

162.5
[6.397]

D/d 26.19 [1.031] 30.18 [1.188]
E/e 52.37 [2.061] 58.72 [2.311]
F/f 3/8–16UNC–2B 7/16–14UNC–2B

For unidirectional motors dimensions, see Ports dimensions on page 72.

For unidirectional motors no case drain hole into the rear cover.

Model code examples and maximum shaft torque

Flange/drive gear Model code example Maximum shaft torque
07BC SNM3NN/026BN07BCM6A3A3NNNN/NNNNN 300 N•m [2655 lb•in]

07SA SNM3NN/063BN07SAM6A4A4NNNN/NNNNN 270 N•m [2389 lb•in]
07GA SNM3NN/090BN07GAM6A4A4NNNN/NNNNN 230 N•m [2035 lb•in]

For further details on ordering, see Model code on page 62.

80 | © Danfoss | July 2021 BC319483612502en-000102

82.0
[3.228]

170.5
[6.712]

87.0
[3.425]

180.5
[7.106]

Danfoss
Power Solutions GmbH & Co. OHG

Krokamp 35
D-24539 Neumünster, Germany
Phone: [phone]

Danfoss
Power Solutions ApS

Nordborgvej 81
DK-6430 Nordborg, Denmark
Phone: [phone]

Danfoss
Power Solutions (US) Company

2800 East 13th Street
Ames, IA 50010, USA
Phone: [phone]

Danfoss
Power Solutions Trading
(Shanghai) Co., Ltd.

Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: [phone]

Products we offer:

Hydro-Gear

www.hydro-gear.com

Daikin-Sauer-Danfoss

www.daikin-sauer-danfoss.com

Cartridge valves

•

DCV directional control

•

valves
Electric converters

•

Electric machines

•

Electric motors

•

Gear motors

•

Gear pumps

•

Hydraulic integrated

•

circuits (HICs)
Hydrostatic motors

•

Hydrostatic pumps

•

Orbital motors

•

PLUS+1® controllers

•

PLUS+1® displays

•

PLUS+1® joysticks and

•

pedals
PLUS+1® operator

•

interfaces
PLUS+1® sensors

•

PLUS+1® software

•

PLUS+1® software services,

•

support and training
Position controls and

•

sensors
PVG proportional valves

•

Steering components and

•

systems
Telematics

•

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and
electric components. We specialize in providing state-of-the-art technology and solutions
that excel in the harsh operating conditions of the mobile off-highway market as well as the
marine sector. Building on our extensive applications expertise, we work closely with you to
ensure exceptional performance for a broad range of applications. We help you and other
customers around the world speed up system development, reduce costs and bring vehicles
and vessels to market faster.

Danfoss Power Solutions – your strongest partner in mobile hydraulics and mobile
electrification.

Go to www.danfoss.com for further product information.

We offer you expert worldwide support for ensuring the best possible solutions for
outstanding performance. And with an extensive network of Global Service Partners, we also
provide you with comprehensive global service for all of our components.

Local address:

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

©

Danfoss | July 2021 BC319483612502en-000102