520L0346 OML OMS.pdf
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OML and OMM
Orbital motors
Technical
Information
OML and OMM
Technical Information
A wide range of orbital motors
F300030.TIF
Sauer-Danfoss is a world leader within production of low speed orbital motors with
high torque. We can offer more than 1600 different orbital motors, categorised in types,
variants and sizes (incl. different shaft versions).
A WIDE RANGE OF
ORBITAL MOTORS
The motors vary in size (rated displacement) from 8 cm
3
(0.50 in
3
]
to 800 cm
3
(48.9 in
3
]
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 Nm (115 lbf·in] to 2700 Nm (24.000 lbf·in]
(peak) and maximum outputs are from 2.0 kW (2.7 hp] to 70 kW (95 hp].
Characteristic features:
•
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 effi ciency
•
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 fl uids
•
© 2001 Sauer-Danfoss
Sauer-Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Sauer -Danfoss reserves the right
to alter its products without prior notice. This also applies to products already ordered provided that such alterations can be made without subsequent
changes being necessary in specifications already agreed. All trademarks in this material are properties of the respective companies. Sauer-Danfoss
and the Sauer-Danfoss logotype are trademarks of the Sauer-Danfoss Group. All rights reserved.
Frontpage: F300029.TIF, F300044.TIF, F300028.TIF, F300045.TIF, Drawing 151-1864
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DKMH.PK.170.C4.02
520L0346
OML and OMM
Technical Information
A wide range of orbital motors
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:
Motors with corrosion resistant parts
•
Wheel motors with recessed mounting fl ange
•
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 fl ushing valve
•
Motors with speed sensor
•
Motors with tacho connection
•
All motors are available with black fi nish paint
•
Planetary gears
Sauer - Danfoss complements the motor range with a complete programme of planetary
gears adapted to suit. The combination of motors and gears makes it possible to obtain
smooth running at fractional speeds and with torques up to 650.000 Nm (5.800.000 lbf·in].
The Sauer–Danfoss LSHT motors are used in the following application areas:
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 SAUER-DANFOSS
ORBITAL MOTORS
Detailed data on all Sauer-Danfoss orbital motors can be found in our motor catalogue,
which is divided into 5 individual subcatalogues:
•
General information on Sauer-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 and OMEW
•
Technical data on medium sized motors: DH and DS
•
Technical data on large motors: OMS, OMT and OMV
•
Technical data on large motors: TMT
•
A general survey brochure on Sauer-Danfoss orbital motors gives a quick motor
reference based on power, torque, speed and capabilities.
3
DKMH.PK.170.C4.02
520L0346
OML and OMM
Technical Information
Contents and Data survey
CONTENTS
Page
OML and OMM
...................................................................................................................................................................4
Speed, torque and output ..........................................................................................................................................4
OML
........................................................................................................................................................................................6
Versions .............................................................................................................................................................................6
Code numbers ................................................................................................................................................................7
Technical data
............................................................................................................................................................. 8-14
Technical data (e.g. speed, torque pressure etc.) ................................................................................................8
Max. permissisble shaft seal pressure.....................................................................................................................9
Pressure drop, oil fl ow in drain line, direction of shaft rotation ............................................................. 9-10
Permissible shaft loads ............................................................................................................................................. 10
Function diagrams ............................................................................................................................................... 11-12
Shaft version................................................................................................................................................................. 13
Port thread versions................................................................................................................................................... 14
Dimensions
...................................................................................................................................................................... 15
OMM
.................................................................................................................................................................................... 18
Versions .......................................................................................................................................................................... 18
Code numbers ............................................................................................................................................................. 19
Technical data
........................................................................................................................................................... 20-27
Technical data (e.g. speed, torque pressure etc.) ............................................................................................. 20
Max. permissisble shaft seal pressure.................................................................................................................. 21
Pressure drop, oil fl ow in drain line, direction of shaft rotation ........................................................... 21-22
Permissible shaft loads ............................................................................................................................................. 22
Function diagrams ............................................................................................................................................... 23-25
Shaft version................................................................................................................................................................. 26
Port thread versions................................................................................................................................................... 27
Dimensions
...................................................................................................................................................................... 28
Weight of motors
.......................................................................................................................................................... 34
Hydraulic Systems
........................................................................................................................................................ 35
Installation of the Sauer-Danfoss hydraulic motors ....................................................................................... 35
Starting up and running in the hydraulic system ........................................................................................... 35
Operation....................................................................................................................................................................... 35
Maintenance................................................................................................................................................................. 35
SPEED, TORQUE AND
OUTPUT
The bar diagrams, see page 5, are useful for a quick selection of relevant motor size for
the application. The fi nal motor size can be determined by using the function diagram
for each motor size.
•
OML can be found on pages 11 - 12
•
OMM can be found on pages 23 - 25
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 mm
2
/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" DKMH.PK.100.G2.02 520L0232.
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DKMH.PK.170.C4.02
520L0346
OMM and OML
Technical Information
Data survey
SPEED, TORQUE AND
OUTPUT
Max. speed
Max. Torque
Max. output
Peak
Intermittend Continuous
values
values
values
5
DKMH.PK.170.C4.02
520L0346
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