Technical InformationTMK, TMKW and TMK FL Orbital Motors
Revision HistoryTable of Revisions
DateChangedRev
Feb 2014Converted to Danoss layout - DITA CMSFA
Apr 2006EA
2520L0479 • Rev FA • Feb 2014
Technical Information
TMK, TMKW and TMK FL Orbital Motors
Contents
A wide range of Orbital Motors
Characteristic, features and application areas of Orbital Motors....................................................................................5
Characteristic features of Danfoss Orbital Motors.......................................................................................................... 5
Technical features of Danfoss Orbital Motor.....................................................................................................................5
The Danfoss Orbital Motors are used in the following application areas:..............................................................6
Survey of literature with technical data on Danfoss Orbital Motors..............................................................................6
Data survey
Speed and torque ............................................................................................................................................................................7
Features available (options)..........................................................................................................................................................8
Technical data
Technical data
Technical data for parking brake motor TMK FL.................................................................................................................10
Max. permissible shaft seal pressure.......................................................................................................................................12
TMK, TMKW and TMK FL with use of drain connection ............................................................................................. 12
TMK with check valves and without use of drain connection..................................................................................12
TMKW / TMK FL without check valves and without use of drain connection.....................................................12
Pressure drop
Pressure drop in motor................................................................................................................................................................ 13
Oil flow
Oil flow in drain line...................................................................................................................................................................... 14
Direction of shaft rotation...........................................................................................................................................................14
Shaft load
Permissible shaft load for TMKW..............................................................................................................................................15
Function diagrams.........................................................................................................................................................................17
TMK 160 function diagram....................................................................................................................................................17
TMK 200 function diagram....................................................................................................................................................18
TMK 250 function diagram....................................................................................................................................................18
TMK 315 function diagram....................................................................................................................................................19
TMK 400 function diagram....................................................................................................................................................19
TMK 470 function diagram....................................................................................................................................................20
Port thread versions......................................................................................................................................................................23
Dimensions, US version, TMK with Magneto flange
TMK with Magneto flange.......................................................................................................................................................... 24
TMK with SAE-C flange.................................................................................................................................................................26
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Contents
Dimension, US version TMKW with side port
TMKW with side port and drain connection........................................................................................................................ 28
TMKW with end port and drain connection.........................................................................................................................30
TMK FL with side port and drain connection.......................................................................................................................32
TMK FL with end port and drain connection....................................................................................................................... 34
Weight of Oribtal Motors............................................................................................................................................................ 36
4520L0479 • Rev FA • Feb 2014
Technical Information
TMK, TMKW and TMK FL Orbital Motors
A wide range of Orbital Motors
Characteristic, features and application areas of Orbital Motors
Danfoss is a world leader within production of low speed orbital motors with high torque. We can offer
more than 3000 different orbital motors, categorised in types, variants and sizes (incl. different shaft
versions).
The motors vary in size (rated displacement) from 8 cm³ [0.50 in³] to 800 cm³ [48.9 in³] per revolution.
Speeds range up to approx. 2500 min-1 (rpm) for the smallest type and up to approx. 600 min-1 (rpm) for
the largest type.
Maximum operating torques vary from 13 N•m [115 lbf•in] to 2700 N•m [24.000 lbf•in] (peak) and
maximum outputs are from 2.0 kW [2.7 hp] to 70 kW [95 hp].
Characteristic features of Danfoss Orbital Motors
Smooth running over the entire speed range
•
Constant operating torque over a wide speed range
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High starting torque
•
High return pressure without the use of drain line (High pressure shaft seal)
•
High efficiency
•
Long life under extreme operating conditions
•
Robust and compact design
•
High radial and axial bearing capacity
•
For applications in both open and closed loop hydraulic systems
•
Suitable for a wide variety of hydraulics fluids
•
Technical features of Danfoss Orbital Motor
The programme is characterised by technical features appealing to a large number of applications and a
part of the programme is characterised by motors that can be adapted to a given application. Adaptions
comprise the following variants among others:
520L0479 • Rev FA • Feb 20145
Technical Information
TMK, TMKW and TMK FL Orbital Motors
A wide range of Orbital Motors
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•
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•
•
•
•
•
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The Danfoss Orbital Motors are used in the following application areas:
Motors with corrosion resistant parts
Wheel motors with recessed mounting flange
OMP, OMR- motors with needle bearing
OMR motor in low leakage version
OMR motors in a super low leakage version
Short motors without bearings
Ultra short motors
Motors with integrated positive holding brake
Motors with integrated negative holding brake
Motors with integrated flushing valve
Motors with speed sensor
Motors with tacho connection
All motors are available with black finish paint
Construction equipment
•
Agricultural equipment
•
Material handling & Lifting equipment
•
Forestry equipment
•
Lawn and turf equipment
•
Special purpose
•
Machine tools and stationary equipment
•
Marine equipment
•
Survey of literature with technical data on Danfoss Orbital Motors
Detailed data on all Danfoss Orbital Motors can be found in our motor catalogue, which is divided into
more individual subcatalogues:
General information on Danfoss Orbital Motors: function, use, selection of orbital motor, hydraulic
•
systems, etc.
Technical data on small motors: OML and OMM
•
Technical data on medium sized motors: OMP, OMR, OMH
•
Technical data on medium sized motors: DH and DS
•
Technical data on medium sized motors: OMEW
•
Technical data on medium sized motors: VMP
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Technical data on medium sized motors: VMR
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Technical data on large motors: OMS, OMT and OMV
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Technical data on large motors: TMT
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Technical data on large motors: TMV
•
A general survey brochure on Danfoss Orbital Motors gives a quick motor reference based on power,
torque, speed and capabilities.
6520L0479 • Rev FA • Feb 2014
Technical Information
Data survey
Speed and torque
TMK, TMKW and TMK FL Orbital Motors
Max. speed / Max. torque
[light] Intermittent values
[dark] Continuous values
The bar diagrams above are useful for a quick selection of relevant motor size for the application. The
final motor size can be determined by using the function diagram for each motor size.
TMK can be found under Function diagrams.
•
The function diagrams are based on actual tests on a representative number of motors from our
production. The diagrams apply to a return pressure between 5 and 10 bar [75 and 150 psi] when using
mineral based hydraulic oil with a viscosity of 35 mm²/s [165 SUS] and a temperature of 50°C [120°F]. For
further explanation concerning how to read and use the function diagrams, please consult the paragraph
"Selection of motor size" in the technical information "General" DHMH.PK.100.G2.02 520L0232.
520L0479 • Rev FA • Feb 20147
Technical Information
TMK, TMKW and TMK FL Orbital Motors
Versions
Version
Orbit motors US-versions, standard shaft seals, drain connections and painted black
Mount.
flange
MagnetoØ 3.25 inØ 4.187 inCyl. 1.25 in1 1/16-12 UN xxTMK1
SAE-CØ 5 inØ 6.375 inCyl. 1.25 in1 1/16-12 UN xxTMK4
WheelØ 4.25 in Ø 5 in
Brake std.Ø 5.5 in (only
Spigot diameter
front /rear end
(rear)
rear)
Bolt circle
diameter (BC)
Ø 5.8 inTap. 1.5 in1 1/16-12 UN xTMKW9
Ø 6.375 inTap. 1.5 in1 1/16-12 UN xTMK-FL11
ShaftPort sizeSide port
version
Spl. 1.25 in1 1/16-12 UN xxTMK2
Tap. 1.25 in1 1/16-12 UN xxTMK3
Spl. 1.25 in1 1/16-12 UN xxTMK5
Tap. 1.25 in1 1/16-12 UN xxTMK6
Tap. 1.5 in1 1/16-12 UN xxTMK7
Tap. 1.625 in1 1/16-12 UN xxTMK8
TypeMax. inlet pressureMax. return pressure with drain line
TMK 160 - 470bar
[psi]
cont.250 [3625]cont.140 [2030]
max.350 [5075]int.
- -peak
1)
2)
175 [2540]
210 [3045]
*Max. torque for shaft typeTap. 1.25 inSplined 1.25 inCyl. 1.25 in
Nm [lbf•in]
900 [8000]900 [8000]900 [8000]
Max. values apply for applications were there is no external radial load. If radial load is present, please contact Danfoss for evaluation.
1)
Intermittent operation: the permissible values may occur for max. 10% of every minute
2)
Peak load: the permissible values may occur for max. 1% of every minute.
For max. permissible combination of flow and pressure, see function diagram for actual motor.
520L0479 • Rev FA • Feb 20149
151-2009.11
vent line
drain/brake
release line
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Technical data
Technical data for parking brake motor TMK FL
Technical data for brake motor TMK FL
Holding torque
Min. release pressure
Max. pressure in drain/brake linebar [psi]30 [435]
1)
This brake is to be used only as a passive parking brake. It may not be used for dynamic braking.
When release pressure2) is greater than zero, the holding torque depends inversely proportional on the
actual release pressure.
At 0 bar - holding torque = 1050 Nm [9295 lbf•in]
At 15 bar [215 psi] or more - holding torque = 0 Nm
2)
The release pressure is the difference between the pressure in the drain/brake release line and the
pressure in the vent line. The vent port must always be connected to tank.
The brake will be fully released at 15 bar [215 psi].
1)
2)
Nm [lbf•in]1050 [9295]
bar [psi]15 [215]
10520L0479 • Rev FA • Feb 2014
Technical Information
Schematic diagram
Schematic diagram
TMK, TMKW and TMK FL Orbital Motors
A: Motor
C: Charge pressure relief valve
(setting min 15 bar [215 psi])
D: Charge pump
M: Brake release valve
R: Drain and brake release port
V: Vent line
The drain/release port on the TMK FL motor must never remain plugged or be connected to the system A
or B pressures, since the brake is a low pressure device. A common solution for controlling the brake is to
use a two position valve to connect the drain port to hydrostatic charge pressure (brake released), or to
reservoir pressure (brake holding).
The vent port must always be connected to tank.
See the above schematic for details.
520L0479 • Rev FA • Feb 201411
151-320.10
151-1855.10
151-1674.10
0 100 200 300 400 500 600 700 800 max.
1500
1200
900
600
300
0
100
90
80
70
60
50
40
30
20
10
0
psibar
PP
min
-1
(rpm)
Technical Information
TMK, TMKW and TMK FL Orbital Motors
Shaft seal
Max. permissible shaft seal pressure
TMK, TMKW and TMK FL with use of drain connection
The shaft seal pressure equals the pressure in the drain line.
TMK with check valves and without use of drain connection
The pressure on the shaft seal never exceeds the pressure in the return line.
TMKW / TMK FL without check valves and without use of drain connection
The shaft seal pressure equals the average of input pressure and return pressure.
TMK FL must always have a drainline.
Max. pressure on shaft seal
12520L0479 • Rev FA • Feb 2014
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Pressure drop
Pressure drop in motor
The curve applies to an unloaded motor shaft and an oil viscosity of 35 mm²/s [165 SUS]
520L0479 • Rev FA • Feb 201413
151-2008.11
BBAA
XXXX
X-XX-X
151-2006.11
BBAA
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Oil flow
Oil flow in drain line
The table below shows the max. oil flow in the drain line at a return pressure less than 5-10 bar [75-150
psi].
Direction of shaft rotation
Pressure drop
bar [psi]
Viscosity
mm²/s [SUS]
Oil flow in drain line
l/min [US gal/min]
160 [2320]20 [100]1.7 [0.45]
35 [165]1.2 [0.32]
325 [4713]20 [100]3.5 [0.92]
35 [165]2.5 [0.66]
14520L0479 • Rev FA • Feb 2014
Technical Information
TMK, TMKW and TMK FL Orbital Motors
Shaft load
Permissible shaft load for TMKW
Mounting flange: Magneto, SAE-C
Mounting flange: Wheel
Permissible radial shaft load
The output shaft runs in tapered roller bearings that permit high axial and radial forses.
The permissible radial load on the shaft is shown for an axial load of 0 N as a function of the distance from
the mounting flange to the point of load application.
The curve is based on B10 Bearing life (2000 hours or 12 000 000 shaft revolutions at 100 min-1) at rated
output torque, when mineral-based hydraulic oil with a sufficient content of anti-wear additives, is used.
520L0479 • Rev FA • Feb 201415
Technical Information
Shaft load
TMK, TMKW and TMK FL Orbital Motors
Permissible radial shaft load
The output shaft runs in tapered roller bearings that permit high axial and radial forses.
The permissible radial load on the shaft is shown for an axial load of 0 N as a function of the distance from
the mounting flange to the point of load application.
The curve is based on B10 Bearing life (2000 hours or 12 000 000 shaft revolutions at 100 min-1) at rated
output torque, when mineral-based hydraulic oil with a sufficient content of anti-wear additives, is used.
16520L0479 • Rev FA • Feb 2014
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Function diagrams
Function diagrams
Explanation of function diagram use, basis and conditions can be found under Speed and torque on page
7 Speed and torque
[blue] Continuous range
[pink] Intermittent range (max. 10% operation every minute)
Intermittent pressure drop and oil flow must not occur simultaneously.
TMK 160 function diagram
520L0479 • Rev FA • Feb 201417
Technical Information
Function diagrams
TMK, TMKW and TMK FL Orbital Motors
TMK 200 function diagram
TMK 250 function diagram
18520L0479 • Rev FA • Feb 2014
Technical Information
Function diagrams
TMK, TMKW and TMK FL Orbital Motors
TMK 315 function diagram
TMK 400 function diagram
520L0479 • Rev FA • Feb 201419
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Function diagrams
TMK 470 function diagram
20520L0479 • Rev FA • Feb 2014
P301 682
Ø45[1.77]
53.1[2.091]
53.5[2.106]
min.21[0.83]
A
-16 UNC
3
8
A
50.1[1.972]
50.5[1.988]
Ø31.70[1.248]
Ø31.74[1.250]
R1.75[0.069]
R1.25[0.049]
4[0.16]
32.0[1.260]
10.1[0.398]
7.5[0.295]
31.5[1.240]
35.1[1.382]
F
A-A
35.3[1.390]
7.90[0.311]
7.95[0.313]
P301 683
A
8
-
3
-16 UNC
24.3[0.957]
R2[0.08]
49.2[1.937]
Ø45[1.77]
48.8[1.921]
min.21[0.83]
A
24.7[0.972]
4[0.16]
Ø31.750[1.250]
Ø31.725[1.249]
A-A
Ø25.3[0.996]
Ø25.5[1.004]
P301 684
R1.75[0.069]
Ø45[1.77]
R1.25[0.049]
C
A
A
53.2[2.094]
56.3[2.217]
56.7[2.232]
53.8[2.118]
35.6[1.402]
34.4[1.354]
Ø31.775[1.251]
Ø31.725[1.249]
1-20UNEF-2A
19.3[0.760]
18.8[0.740]
4.5[0.177]
7.963[0.3135]
7.937[0.3125]
3.949[0.1555]
3.823[0.1501]
A-A
I
H
G
2xØ4[0.16]
12.7[0.500]
2xØ4[0.16]
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Shaft
Shaft Versions
A: Cylindrical shaft 1. 25 in
F: Parallel key
5/16 x 5/16 x 1 1/4 in
SAE J744
B: Involute splined shaft
ANS B92.1 - 1970 standard
Flat root side fit
Pitch 12/24
Teeth 14
Major diameter: 1.25 in
Pressure angle 30°
C: Tapered shaft 1. 25 in
G: Cone 1 : 8
SAE J501
H: 1 - 20 UNEF
Across flats: 1 7/16 in
Tightening torque:
450 ± 10 Nm [3980 ± 85
lbf•in]
I: Parallel key
5/16 x 5/16 x 3/4 in
SAE J501
520L0479 • Rev FA • Feb 201421
P301 685
A
A
D
A-A
46.9[1.846]
48.1[1.894]
65.7[2.587]
66.3[2.610]
69.2[2.724]
68.8[2.709]
25.2[0.992]
25.8[1.016]
Ø45[1.77]
K
J
1-20UNEF
Ø38.075[1.499]
Ø38.125[1.501]
4[0.16]
2xØ4[0.16]
4.715[0.1856]
4.595[0.1809]
9.525[0.375]
9.545[0.376]
L
12.7[0.500]
R1.25[0.049]
R1.75[0.069]
P301 686
A
M
32.1[1.264]
31.5[1.240]
A
16[0.63]
5.499[0.2165]
5.379[0.2118]
11.133[0.4383]
11.113[0.4375]
O
A-A
E
Ø45[1.77]
4[0.16]
2xØ4[0.16]
1 -18UNEF-2A
-
1
4
Ø41.30[1.626]
Ø41.26[1.624]
N
53.4[2.102]
54.6[2.150]
75.2[2.961]
75.8[2.984]
78.7[3.098]
78.3[3.083]
R1.75[0.069]
R1.25[0.049]
Technical InformationTMK, TMKW and TMK FL Orbital Motors
Shaft
D: Tapered shaft 1. 5 in
J: Cone 1 : 8
SAE J501
K: 1 - 20 UNEF
Across flats: 1 7/16 in
Tightening torque:
450 ± 10 Nm [3980 ± 85
2800 East 13th Street
Ames, IA 50010, USA
Phone: +1 515 239 6000
Danfoss
Power Solutions
(Shanghai) Co. Ltd.
Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: +86 21 3418 5200
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www.hydro-gear.com
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