TMT, TMTU, TMTW, TMT FL and TMTW FL Orbital Motors
Contents
A wide range of Orbital Motors
Characteristic, features and application areas of Orbital Motors....................................................................................4
Characteristic features of Danfoss Orbital Motors................................................................................................................4
Technical features of Danfoss Orbital Motor..........................................................................................................................4
Survey of literature with technical data on Danfoss Orbital Motors..............................................................................5
Data survey
Speed and torque.............................................................................................................................................................................6
Versions
Versions and code numbers.........................................................................................................................................................7
Features available (options)..........................................................................................................................................................8
Technical data for TMT, TMTU, TMTW and TMT FL............................................................................................................10
Technical data for brake motor TMT FL and TMTW FL.....................................................................................................11
Maximal permissible shaft seal pressure...............................................................................................................................11
Pressure drop in motor................................................................................................................................................................ 12
Oil flow in drain line...................................................................................................................................................................... 12
Direction of shaft rotation...........................................................................................................................................................13
Permissible shaft load for TMT and TMT FL.....................................................................................................................14
Permissible radial shaft load for TMTW............................................................................................................................ 15
Permissible radial shaft load for TMTW FL.......................................................................................................................16
Function diagrams
Function diagrams.........................................................................................................................................................................17
Shaft version
TMT shaft, European versions....................................................................................................................................................20
TMT shaft, US versions..................................................................................................................................................................21
Technical data
Port thread versions......................................................................................................................................................................23
Dimensions – attached component
Dimensions of the attached component for TMTU (bearing less)...............................................................................24
Internal spline data for the component to be attached.................................................................................................. 24
Dimensions
Drain connection on TMTU or attached component........................................................................................................26
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Technical Information
TMT, TMTU, TMTW, TMT FL and TMTW 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 3,000 different orbital motors, categorised in types, variants and sizes (including 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 approximate 2,500 min-1 (rpm) for the smallest type and up to approximate 600 min
(rpm) for the largest type.
Maximum operating torques vary from 13 N•m [115 lbf•in] to 2,700 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
•
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
•
-1
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:
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Technical Information
TMT, TMTU, TMTW, TMT FL and TMTW FL Orbital Motors
Data survey
Speed and torque
Peak values, Intermittend values, 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.
TMT can be found in Function diagrams on page 17
•
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 - 520L0232.
European version
US version
Side port version
Standard shaft seal
Drain connectionYesYesYesYesYesYesYesYesYes
Check valveNoNoNoNoNoNoNoNoNo
Code numbers
TMT 250151Z3010151Z3016151Z3060151Z3020151Z3026151Z3070151Z3030151Z3036151Z3080
TMT 315151Z3011151Z3017151Z3061151Z3021151Z3027151Z3071151Z3031151Z3037151Z3081
TMT 400151Z3012151Z3018151Z3062151Z3022151Z3028151Z3072151Z3032151Z3038151Z3082
TMT 470151Z3013-151Z3063
TMT 500151Z3014-151Z3064151Z3024-151Z3074151Z3034-151Z3084
TMT 630151Z3015-151Z3065151Z3025-151Z3075151Z3035-151Z3085
151Z3023
-151Z3073151Z3033-151Z3083
UN
TMT U versions
Mounting flange4-Bolt
Spigot diameter-Bolt circle diameter (BC)-Shaft-Port size
European version
US version
Side port version
Standard shaft seal
Drain connection
Check valve
Code numbers
TMT U 250151Z3000151Z3100
TMT U 315151Z3001151Z3101
TMT U 400151Z3002151Z3102
TMT U 470151Z3003151Z3103
TMT U 500151Z3004151Z3104
TMT U 630151Z3005151Z3105
Spigot diameterØ 180 mmØ 180 mmØ 160 mm
Bolt circle diameter (BC)Ø 210 mmØ 210 mmØ 194 mm
ShaftThread hole fl.Thread hole fl.Tap. 45 mm
Port sizeG 3/41 1/16 - 12 UN1 1/16 - 12 UN
European version
US version
Side port version
Standard shaft seal
Drain connectionYesYesYes
Check valveNoNoNo
TMT, TMTU, TMTW, TMT FL and TMTW FL Orbital Motors
Technical data
Direction of shaft rotation
TMTW
TMT
Permissible radial shaft load
TMT FL
The output shaft runs in tapered roller bearings that permit high axial and radial forces.
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.
Danfoss | March 2016520L0523 | BC00000102en-US0402 | 13
Technical Information
TMT, TMTU, TMTW, TMT FL and TMTW FL Orbital Motors
Technical data
The curve is based on B10 Bearing life (2,000 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.
The dash curve A shows max. radial shaft load. Any shaft load exceeding the values shown in the curve
will involve a risk of breakage.
Permissible shaft load for TMT and TMT FL
Spigot diameter Ø160 mm [6.3 in] TMT and Ø180 mm [7.1 in] TMT FL
TMT, TMTU, TMTW, TMT FL and TMTW FL Orbital Motors
Dimensions – attached component
Standard ANS B92.1 - 1970, class 5
(corrected m . x = 1; m = 2.1166)
Flat root side fitmm[inch]
Number of teethz16
Pitch DP12/24
Pressure angle30˚
Pitch diameterD33.8656[1.3333]
Major diameterD
Form diameter (minimum)D
Minor diameterD
Space width (circular)Lo4.516 ±0.037[0.1777 ±0.0014]
Tooth thickness (circulator)S
Fillet radiusR
Maximum measurement between pins
Pin diameterd4.843 ±0.001[0.1903 ±0.00004]
2800 East 13th Street
Ames, IA 50010, USA
Phone: +1 515 239 6000
Danfoss
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(Shanghai) Co., Ltd.
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