Technical Information

Orbital Motors
OMT and OMV

www.danfoss.com

Technical Information
OMT and OMV Orbital Motors

Revision history

Table of revisions

2 | © Danfoss | September 2021

Date

Changed

Rev

September 2021

Updated catalogue to reflect current offerings

0801

Changed document number from 'BC00000090' and '520L0407' to 'BC152886483862'

0702

March 2016

Engineering Tomorrow

0602

February 2016

Corrected Hardening specification for OMTS, OMVS

0601

November 2014

Converted to Danfoss layout - DITA CMS

FA

December 2013

Table updated

EL

June 2013

Drawing corrected

EK

April 2013

Drawing corrected

EJ

January 2013

Correct drawing

EI

November 2012

Planetary Gears deleted

EH

July 2012

Typo in ‘Major dia’EG

November 2010

Dimensions changed

EF

November 2009

conversions, and layout adjusted

ED

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
Contents
Orbital motors
Orbital Motors Introduction......................................................................................................................................................... 5
Orbital Motors Features............................................................................................................................................................ 5
Technical Features...................................................................................................................................................................... 5
Orbital Motors Application Areas..........................................................................................................................................5
Orbital Motors Literature Overview...........................................................................................................................................6
Speed, torque, and output............................................................................................................................................................7
OMT
Versions................................................................................................................................................................................................8
Features.......................................................................................................................................................................................... 8
Code numbers................................................................................................................................................................................... 8
Ordering......................................................................................................................................................................................... 9Technical data....................................................................................................................................................................................9Maximum permissible shaft seal pressure.........................................................................................................................9
Motor with check valves and without use of drain connection........................................................................... 9Motor with check valves and with drain connection............................................................................................... 9Motor with check valves and with drain connection............................................................................................. 10
OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH......................................................................................................10
Pressure drop in motor...........................................................................................................................................................12
Oil flow in drain line.................................................................................................................................................................12
Direction of shaft rotation..................................................................................................................................................... 13
Permissible shaft loads for OMT..........................................................................................................................................13
OMT Function diagrams.............................................................................................................................................................. 14
Function diagram use............................................................................................................................................................. 17
Shaft version.................................................................................................................................................................................... 18
Port thread versions.................................................................................................................................................................21
Dimensions.......................................................................................................................................................................................22
OMT standard flange - European version........................................................................................................................ 22
OMT standard flange - US version...................................................................................................................................... 24
OMT Wheel - European version...........................................................................................................................................26
OMT Wheel - US version.........................................................................................................................................................28
OMT Brake-wheel - European version...............................................................................................................................30
OMT Brake-standard - European version......................................................................................................................... 32
OMT short - European version............................................................................................................................................. 33
OMTS.................................................................................................................................................................................................. 34
Installation...................................................................................................................................................................................34
Attached component dimensions......................................................................................................................................35
Attached component internal splines.............................................................................................................................. 35
Motor or attached component drain connection.........................................................................................................36
OMT versions and code numbers
OMV versions and code numbers
OMV versions and code numbers............................................................................................................................................ 38
OMV technical data
OMV, OMVW, OMVS technical data.........................................................................................................................................40
Maximum permissible shaft seal pressure............................................................................................................................40
Motor with check valves and without use of drain connection.............................................................................. 40
Motor with check valves and with drain connection.................................................................................................. 41
Pressure drop in motor................................................................................................................................................................ 41
Oil flow in drain line...................................................................................................................................................................... 41
Direction of shaft rotation...........................................................................................................................................................42
Permissible shaft loads.................................................................................................................................................................42
OMV mounting flange: Standard........................................................................................................................................42
OMV mounting flange: Wheel............................................................................................................................................. 43
OMV mounting flange: SAE-C.............................................................................................................................................. 43
OMV function diagrams
OMV 315 function diagram........................................................................................................................................................ 45© Danfoss | September 2021

BC152886483862en-000801 | 3

Technical Information
OMT and OMV Orbital Motors
Contents
OMV 400 function diagram........................................................................................................................................................ 45
OMV 500 function diagram........................................................................................................................................................ 46
OMV 630 function diagram........................................................................................................................................................ 46
OMV 800 function diagram........................................................................................................................................................ 47
Shaft version
OMV shaft version..........................................................................................................................................................................48
OMV port thread versions...........................................................................................................................................................52
OMV dimensions
OMV dimensions - European version..................................................................................................................................... 53
OMV standard flange - European version........................................................................................................................53
OMV Wheel - European version...........................................................................................................................................55
OMV short - European version.............................................................................................................................................56
OMV dimensions - US version................................................................................................................................................... 57
OMV standard flange - US version......................................................................................................................................58
OMV SAE-C flange - US version............................................................................................................................................60
OMV wheel - US version......................................................................................................................................................... 62
OMVSInstalling the OMVS.......................................................................................................................................................................64
Attached component dimensions for OMVS.......................................................................................................................64
Attached component internal splines for OMVS................................................................................................................65
Motor or attached component drain connection..............................................................................................................65

4 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
Orbital motors

Orbital Motors Introduction
Danfoss is a world leader within production of low speed orbital motors with high torque. We can offer
more than 1500 different orbital motors, categorized in types, variants and sizes (including different shaft
versions).
The motors size vary (rated displacement) from 130 to 800 cm3 [7.9 to 48.9 in3] per revolution.
• Motor sizes:‒ OMT and OMV

‒
‒
‒
‒

TMK
TMT
TMTHW
TMVW

Speeds range up to approximate 600 min-1 (rpm).
Maximum operating torques up to 3400 N•m [30090 lb•in] (peak) and maximum outputs up to 70 kW [95hp].
Orbital Motors Features

•
•
•
•
•
•
•
•
•
•

Smooth running over the entire speed range
Constant operating torque over a wide speed range
High starting torqueHigh return pressure without the use of drain line (high pressure shaft seal)
High efficiency
High radial and axial bearing capacity
Long life under extreme operating conditions
Robust and compact design
For applications in both open and closed loop hydraulic systems
Suitable for a wide variety of hydraulics fluids

Technical Features
The program is characterized by technical features appealing to a large number of applications and by
motors that can be adapted to a given application.
Adaptions comprise the following variants:
Motors with:‒ integrated negative holding brake•‒ speed sensor‒ black finish paint••

Short motors without bearings or Ultra short motors
Wheel motors with recessed mounting flange

Orbital Motors Application Areas
The orbital motors are used in the following application areas:
Construction equipment•••© Danfoss | September 2021

Agricultural equipment
Material handling & Lifting equipment

BC152886483862en-000801 | 5

Technical Information
OMT and OMV Orbital Motors
Orbital motors

•
•
•
•
•

Forestry equipment
Lawn and turf equipment
Machine tools and stationary equipment
Marine equipment
Special purpose

Orbital Motors Literature Overview
A general catalog of all Orbital Motors with technical data gives a quick motor reference based on:
selection of orbital motor, function in hydraulic systems, power, torque, speed and capabilities. Moredetailed information can be found in an individual motor catalogs.

6 | © Danfoss | September 2021

Literature title

Literature type

Reference number

Orbital Motors in General

Technical Information

BC152886483554

OMT and OMV Orbital Motors

Technical Information

BC152886483862

TMK, TMKW, TMK FL Orbital Motors

Technical Information

BC152886483785

TMT, TMTU, TMTW, TMT FL Orbital Motors

Technical Information

BC152886483631

TMTHW Orbital Motors

Technical Information

BC152986483537

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
Orbital motors
Speed, torque, and output
Maximum speed
min-1
(rpm)
800
600
400
200
160 200 250 315 400 500 315 400 500 630 800

OMT

OMV

Maximum torquelbf• in N• m
22000
2400
20000
2200
18000 2000
16000 1800
14000 1600
12000
10000

1400
1200
1000

8000
6000

800
600

4000

400

2000

200
160 200 250 315 400 500 315 400 500 630 800

Maximum output
hp
80
60
40
20

kW
60
50
40
30
20
10
160 200 250 315 400 500 315 400 500 630 800

OMT
1

OMV
2

1. Intermittend values
2. 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: see OMT Function
diagrams on page 14, or OMV function diagrams on page 45.
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].

© Danfoss | September 2021

BC152886483862en-000801 | 7

Technical Information
OMT and OMV Orbital Motors
OMT

Versions
OMT versions
Mountingflange

Shaft

Port size

Europea USn version version

Drain
connection

Check valve Low
pressurereleaseStandardflangeCyl. 40 mm

G 3/4

X

Yes

Yes

Cyl. 1.5 in

1 1/16-12 UN

Splined 1.5 in

G 3/4

X
X

1 1/16-12 UN

Wheel

Brake-wheel

Brakestandard

Short

Tapered 45 mm

G 3/4

Tapered 1.75 in

1 1/16-12 UN

X
X
X

High
pressurereleaseMain typedesignation
OMT

Yes

Yes

OMT

Yes

Yes

OMT

Yes

Yes

OMT

Yes

Yes

OMT

Yes

Yes

OMT

P.t.o.

G 3/4

X

Yes

Yes

OMT

Cyl. 40 mm

G 3/4

X

Yes

Yes

OMTW

Tapered 45 mm

G 3/4

X

Yes

Yes

OMTW

Tapered 1.75 in

1 1/16-12 UN

Yes

Yes

Wheel bolt flange

G 3/4

X

X

Yes

No

X

OMTW
OMT FX

Thread hole flange

G 3/4

X

Yes

No

X

OMT FX

Cyl. 40 mm

G 3/4

X

Yes

No

X

OMT FL

Splined 1.5 in

G 3/4

X

Yes

No

X

OMT FL

Cyl. 40 mm

G 3/4

X

Yes

No

X

OMT FH

Splined 1.5 in

G 3/4

X

Yes

No

X

OMT FHNo output shaft

G 3/4

X

Yes

Yes

OMTS

FeaturesFeatures available (options):
Speed sensor

•
•
•
•
•

Motor with tacho connection
Viton shaft seal
PaintedUltra short

Code numbers
OMT code numbers
Code
Numbers

8 | © Danfoss | September 2021

Displacement [cm3]
160

200

250

315

400

500

151B

3000

3001

3002

3003

3004

3005

151B

2050

2051

2052

2053

2054

2055

151B

3006

3007

3008

3009

3010

3011

151B

2056

2057

2058

2059

2060

2061

151B

3012

3013

3014

3015

3016

3017

151B

2062

2063

2064

2065

2066

2067

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
OMT code numbers (continued)
Code
Numbers

Displacement [cm3]
160

200

250

315

400

500

151B

3018

3019

3020

3021

3022

3023

151B

3024

3025

3026

3027

3028

3029

151B

3030

3031

3032

3033

3034

3035

151B

2080

2081

2082

2083

2084

2085

151B

3207

3208

3209

3210

3211

3212

151B

3200

3201

3202

3203

3204

3205

151B

4000

4001

4002

4003

4004

4005

151B

4007

4008

4009

4010

4011

4012

151B

4021

4022

4023

4024

4025

4026

151B

4028

4029

4030

4031

4032

4033

151B

3036

3037

3038

3039

3040

3041

Ordering
Add the four digit prefix “151B” to the four digit numbers from the chart for complete code number.
Example:151B3002 for an OMT 250 with standard flange, cyl. 40 mm shaft and port size G 3/4.
Orders will not be accepted without the four digit prefix.

Technical data
Maximum permissible shaft seal pressure

Motor with check valves and without use of drain connection
The pressure on the shaft seal never exceeds the pressure in the return line.

151-320.10

Motor with check valves and with drain connection
The shaft seal pressure equals the pressure on the drain line.
OMT FX, OMT FL and OMT FH must always be fitted with drain line.
Maximum pressure in drain line is 5 bar [75 psi]

© Danfoss | September 2021

BC152886483862en-000801 | 9

Technical Information
OMT and OMV Orbital Motors
OMT

151-1405.10

Motor with check valves and with drain connection
The shaft seal pressure equals the pressure on the drain line.
Maximum return pressure without drain line or maximum pressure in the drain line
P
psi
1500

P
bar
100
90

1200

80
70

900

60
50

600

40
30

300

20
10

0

0
0

100

200

300

400

500

600

700

800

max.

min-1
(rpm)

151-1674.10– – – – Intermittent operation: the permissible values may occur for max. 10% of every minute.
Continuous operation

OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH
Technical data for OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH
Type

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

160

200

250

315

400

500

161.1
[9.83]

201.4[12.29]251.8[15.37]326.3[19.91]410.9[25.07]523.6[31.95]

cont.

625

625

500

380

305

240

int1)

780

750

600

460

365

285

Motor size
Geometric displacement

cm3
[in3]

Maximum speed

min-1
[rpm]

10 | © Danfoss | September 2021

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Technical Information
OMT and OMV Orbital Motors
OMT
Technical data for OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH (continued)
Type

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

OMT
OMTW
OMTS
OMT FXOMT FLOMT FH

Motor size

160

200

250

315

400

500

cont.

470
[4160]

590[5220]

730[6460]

950[8410]

1080[9560]

1220[10800]

int.1)

560[4960]

710[6280]

880[7790]

1140[10090]1260[11150]1370[12130]

cont.

26.5
[35.5]

33.5[44.9]

33.5[44.9]

33.5[44.9]

30.0[40.2]

26.5[35.5]

int.1)

32.0[42.9]

40.0[53.6]

40.0[53.6]

40.0[53.6]

35.0[46.9]

30.0[40.2]

cont.

200[2900]

200[2900]

200[2900]

200[2900]

180[2610]

160[2320]

int.1)

240[3480]

240[3480]

240[3480]

240[3480]

210[3050]

180[2610]

peak2)

280[4060]

280[4060]

280[4060]

280[4060]

240[3480]

210[3050]

l/min
cont.
[USgal/min]

100[26.4]

125[33.0]

125[33.0]

125[33.0]

125[33.0]

125[33.0]

int.1)

125[33.0]

150[39.6]

150[39.6]

150[39.6]

150[39.6]

150[39.6]

10
[145]

10
[145]

10
[145]

10
[145]

10
[145]

10
[145]

Minimum starting torque at maximum pressure
drop cont.
Nm [lbf·in]

340[3010]

430[3810]

530[4690]

740[6550]

840[7430]

950[8410]

at maximum pressure
drop int.1)
Nm [lbf·in]

410[3630]

520[4600]

630[5580]

890[7880]

970[8590]

1060[9380]

Maximum torqueMaximum output

Maximum pressure drop

Maximum oil flow

Maximum startingpressure with unloaded
shaft

Nm
[lbf·in]

kW
[hp]

bar
[psi]

bar
[psi]

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 maximum permissible combination of flow and pressure, see function diagram for actual motor.
Type
OMT, OMTW, OMTS, OMTFX, OMT FL, OMT FH

Maximum inlet pressure

Maximum return pressure
with drain line

bar
[psi]

cont.

210
[3050]

140[2030]

bar[psi]

int.1)

250[3630]

175[2540]bar[psi]

peak2)

300[4350]

210[3050]

1) Intermittent operation: the permissible values may occur for maximum 10% of every minute.
2) Peak load: The permissible values may occur for maximum 1% of every minute.

© Danfoss | September 2021

BC152886483862en-000801 | 11

Technical Information
OMT and OMV Orbital Motors
OMT
Brake motors
Type

Maximum presssure in
drain line3)

Holding torque4)

Brake-release pressure3)

Maximum pressure in
brake line

OMT FX, OMT FL

5 bar[70 psi]

1200 Nm[10620 lbf·in]

12 bar[170 psi]

30 bar[440 psi]

OMT FH

5 bar[70 psi]

1200 Nm[10620 lbf·in]

30 bar[440 psi]

280 bar[4060 psi]

3) Brake motors must always have a drain line. The brake-release pressure is the difference between the pressure in the brake line and the pressurein the drain line.
4) For the supply of motors with holding torques higher than those stated, please contact the Danfoss sales organization.

For maximum permissible combination of flow and pressure, see function diagram for actual motor.
Pressure drop in motor
′p
psi

′p

bar
16

200

14
12

150

10
8

100
6
50

4
2

0

Q

0
0
0

20
4

40
8

60
12

16

80
20

100
24

120
28

140

l/min

Q

32

36 US gal/min
151-1409.10

The curve applies to an unloaded motor shaft and an oil viscosity of 35 mm2/s [165 SUS]
Oil flow in drain line
Maximum oil flow in the drain line at a return pressure less than 5-10 bar [75-150 psi]
Pressure drop

Viscosity

Oil flow in drain line

bar

[psi]

mm2/s

[SUS]

l/min

[US gal/min]

140[2030]

20

[100]

2.5

[0.66]

35

[165]

1.5

[0.40]

210[3050]

20

[100]

5.0

[1.32]

35

[165]

3.0

[0.79]

12 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Direction of shaft rotation
B

A

B

A

151-1050.10

Permissible shaft loads for OMTMounting flange:
Standard

Shaft:All shaft types

Mounting flange:
Wheel

Shaft:All shaft types
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 fromthe 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.
For 3,000,000 shaft revolutions or 500 hours – increase these shaft loads with 52%.
The dash curve shows maximum radial shaft load. Any shaft load exceeding the values shown in the
curve will involve a risk of breakage.
Bearing life calculations can be made using the explanation and formula provided in the chapter "Bearing
dimensioning in the technical information General Orbital Motors, BC152886483554.

Mounting flange:
Brake-wheel

Shaft:All shaft types© Danfoss | September 2021

BC152886483862en-000801 | 13

Technical Information
OMT and OMV Orbital Motors
OMT
Mounting flange:
Brake-standard

Shaft:All shaft types
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 fromthe 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.
For 3,000,000 shaft revolutions or 500 hours – increase these shaft loads with 52%.
The dash curve shows max. radial shaft load. Any shaft load exceeding the values shown in the curve will
involve a risk of breakage.
Bearing life calculations can be made using the explanation and formula provided in the chapter Bearing
dimensioning in the technical information General Orbital Motors, BC152886483554.
OMT Function diagramsContinuous rangeIntermittent range (maximum 10% operation every minute)



5000

4000

450

3500

400

Q=125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]
35hp

200 bar2900 psi

30kW

25kW
350
25hp

300

0

0

120 bar1740 psi

15hp

80 bar1160 psi

N=5kW

5hp

100

20kW
15kW

10kW

10hp

85%

150

50

20hp

η t =86%200

500

160 bar2320 psi

30hp

2000

1000

3480 psi

N=35kW

250
1500

80 l/min[21.1 US gal/min]′ p=240 bar

550
500

2500

60 l/min[15.9 US gal/min]

600

4500

3000

40 l/min[10.6 US gal/min]Nm

20 l/min[5.3 US gal/min]

5500

Q=10 l/min[2.6 US gal/min]

OMT 160lbf• in′ p= 40 bar

80%η t =70%
0

100

200

580 psi

300

400

500

600

700

800

min-1
(rpm)
151-493.10

14 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT

6500
6000
5500

Q=150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]

80 l/min[21.1 US gal/min]

60 l/min[15.9 US gal/min]

35kW

650
600
550
500

4000

450

3500

400

3000

350

1500

′ p=240 bar

700

4500

2000

20 l/min[5.3 US gal/min]

750

5000

2500

Q=10 l/min[2.6 US gal/min]Nm

40 l/min[10.6 US gal/min]

OMT 200lbf• in

30kW
35hp

20kW

10kW

50

0

0

160 bar2320 psi

30hp

120 bar1740 psi

85%

5hp

150
100

40hp

87%

η t =88%

N=5kW

200

25hp

15kW
15hp 20hp

10hp

250

500

200 bar2900 psi

25kW

300

1000

3480 psi

N=40kW

80 bar1160 psi

80%′ p= 40 bar

η t =70%
0

50

100

150

200

250

300

350

400

580 psi

450

500

550

600

650

700

750

min-1
(rpm)
151-494.10′ p=240 bar
30kW

6000
5000

35kW

3480 psi

N=40kW

700
25kW

600
20kW

500
400

15hp

300
N=5kW

10hp

200
100

0

0

25hp

120 bar1740 psi

20hp

80 bar1160 psi

85%

5hp
1000

160 bar2320 psi

η t =87%

10kW

3000

200 bar2900 psi

40hp
35hp

30hp

15kW

4000

2000

Q=150 l/min[39.6 US gal/min]

800

125 l/min[33.0 US gal/min]

7000

100 l/min[26.4 US gal/min]

900

80 l/min[21.1 US gal/min]

8000

60 l/min[15.9 US gal/min]

9000

40 l/min[10.6 US gal/min]Nm

20 l/min[5.3 US gal/min]

Q=10 l/min[2.6 US gal/min]

OMT 250lbf• in80%′ p= 40 bar

η t =70%
0

50

100

150

200

250

300

350

580 psi

400

450

500

550

600

min-1
(rpm)
151-495.10© Danfoss | September 2021

BC152886483862en-000801 | 15

Technical Information
OMT and OMV Orbital Motors
OMT

Q=150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]

80 l/min[21.1 US gal/min]

1200

10000

60 l/min[15.9 US gal/min]

11000

40 l/min[10.6 US gal/min]Nm

20 l/min[5.3 US gal/min]

Q=10 l/min[2.6 US gal/min]

OMT 315lbf• in′ p=240 bar

1100

9000

1000

8000

900

7000

800

35kW

20hp
15kW
15hp

600

5000

500

40hp

160 bar2320 psi

30hp 35hp

25hp

120 bar1740 psi

10hp

400
5hp

300

2000

20kW

10kW

4000
3000

200 bar2900 psi

30kW
25kW

700

6000

3480 psi

N=40kW

N=5kW

η t =88%

87%

80 bar1160 psi

85%80%′ p= 40 bar

200

1000

100

0

0

η t =70%
0

50

100

580 psi

150

200

250

300

350

400

450

500

min-1
(rpm)
151-869.10

10000

1000
900

7000

800

3000

Q=150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

180 bar2610 psi
N=30kW

700
10hp

600
5hp

400
300

2000

200

1000

100

0

0

150 bar2180 psi

25kW
20kW

2.5hp

15kW

10kW

87%

η t =89%500
4000

100 l/min[26.4 US gal/min]

3050 psi

1100

8000

5000

′ p=210 bar

1200

9000

6000

80 l/min[21.1 US gal/min]

1300
11000

60 l/min[15.9 US gal/min]

12000

40 l/min[10.6 US gal/min]Nm

20 l/min[5.3 US gal/min]lbf• in

Q=10 l/min[2.6 US gal/min]

OMT 400

5kW

120 bar1740 psi

30hp

25hp
20hp

90 bar1300 psi

15hp
85%

60 bar870 psi80%

N=2.5kW′ p= 30 bar

η t =70%
0

25

50

75

100

125

150

175

200

225

440 psi

250

275

300

325

350

375

min-1
(rpm)
151-1058.10

16 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT

Q=150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]

80 l/min[21.1 US gal/min]

1500

60 l/min[15.9 US gal/min]

40 l/min[10.6 US gal/min]Nm

20 l/min[5.3 US gal/min]lbf• in

Q=10 l/min[2.6 US gal/min]

OMT 500

12500′ p=180 bar

2610 psi

1250
10000

30hp
1000

10hp

750
5000

5kW

500
N=2.5kW
2500

25kW

20kW

7500

25hp

15kW

10kW

160 bar2320 psi
140 bar2030 psi
120 bar1740 psi

N=30kW

20hp

η t =90%

90 bar1300 psi

15hp

5hp

60 bar870 psi

87%
85%

2.5hp
250

η t =80%′ p= 30 bar

440 psi

0

0
0

25

50

75

100

125

150

175

200

225

250

275

300

min-1
(rpm)
151-1116.10

Function diagram use
Explanation of function diagram use, basis and conditions, see Speed, torque, and output on page 7.
Intermittent pressure drop and oil flow must not occur simultaneously.

© Danfoss | September 2021

BC152886483862en-000801 | 17

Technical Information
OMT and OMV Orbital Motors
OMT
Shaft version
82 [3.23]
26 [1.02]
9.5 [0.374]
45˚
M12

R0.5 [0.020]

A-A

43.00 [1.693]
42.71 [1.681]

Ø45 [1.77]

AØ40.018 [1.5755]
Ø40.002 [1.5749]

AC

A
70.5 [2.776]
70.0 [2.756]

5.5 [0.217]
4.5 [0.177]
12.000 [0.4724]
11.957 [0.4707]

82.2 [3.236]
81.8 [3.220]
min. 20 [0.78]
45˚
3/8 -16 UNC

R0.5 [0.020]

A-A

42.40 [1.669]
42.14 [1.659]

Ø45 [1.77]

BØ38.10 [1.500]
Ø38.05 [1.498]

AD

A
57.5 [2.264]
56.9 [2.240]

11.5 [0.453]
9.3 [0.366]

9.545 [0.3758]
9.525 [0.3750]

151-1032.10

18 | © Danfoss | September 2021

A

Cylindrical 40 mm shaft

B

Cylindrical 1.5 in shaft

C

Parallel key

D

Parallel key

A12 × 8 × 70

3/8 × 3/8 × 21/4 in

DIN 6885

B.S. 46

Keyway deviates from standard

Keyway deviates from standard

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
82 [3.23]
26 [1.02]
9.5 [0.374]
45˚
M12

R0.5 [0.020]

A-AØ45 [1.77]

CØ38.100 [1.5000]
Ø38.075 [1.4990]

AA
58 [2.28]
56 [2.20]

82.2 [3.236]
81.8 [3.220]

min. 20 [0.78]

45˚
3/8 -16 UNC

R0.5 [0.020]

AØ38.100 [1.5000]
Ø38.075 [1.4990]

Ø45 [1.77]

D

A-A

A
58 [2.28]
56 [2.20]

151-1916.10

C

Involute splined shaftD

US version

ANS B92.1 - 1970 standard

Involute splined shaft

Flat root side fit

ANS B92.1 - 1970 standard

Pitch 12/24

Flat root side fit

Teeth 17

Pitch 12/24

Major diameter 1.50 in

Teeth 17

Pressure angle 30°

Major diameter 1.50 in
Pressure angle 30°© Danfoss | September 2021

BC152886483862en-000801 | 19

Technical Information
OMT and OMV Orbital Motors
OMT
A-A

I

H

16 [0.63]

A-A

J

A
34 [1.34]
54 [2.13]

4 [0.16]A

32.1 [1.264]
31.5 [1.240]
59.00 [2.323]
57.80 [2.276]
4.5 [0.177]

12.000 [0.4724]
11.957 [0.4707]

22 [0.87]

Ø4 [0.16]

Ø45 [1.77]

Ø56 [2.20]

24.15 [0.951]
23.95 [0.943]

Ø6 [0.24]

Ø7 [0.28]
M30x2

Ø45 [1.77]

F

5.71 [0.225]
5.61 [0.221]

A

A

E

L

K

82 [3.23]

M
11.150 [0.4390]
11.130 [0.4382]

80.8 [3.181]
80.0 [3.150]
102 [4.02]
45˚

R0.5 [0.020]

R6.7 [0.267]

R5 [0.20]

29.5 [1.161]
29.3 [1.154]
Ø34.85 [1.372]
Ø34.73 [1.367]

Ø45 [1.77]

G

A-A

A
77 [3.03]
75 [2.95]

I

28.14 [1.108]**
27.89 [1.098]

7 [0.28]
38.25 [1.506]
37.75 [1.486]

E Tapered 45 mm shaft (ISO/R775)
DIN 937

151-1917.10

F

Tapered 1.75 in shaft

K

Cone 1:8

Across flats: 46 mm
Tightening torque: 500 ± 30 Nm [4430±270 lbf·in]
H Taper 1:10
J

Parallel key
B12 × 8 × 28]
40
0.3 36]4[
8.6 3 [0.3
8.5

60˚

A

SAE J501
L

1 1/4 - 18 UNEF

G P.t.o. shaft
DIN 9611 Form 1 (ISO/R500
without pin hole)** Deviates from DIN 9611

Across flats 2 3/16 inTightening torque: 500 ±10 Nm (4425 ±90lbf·in)M Parallel key

DIN 6885

7/16 × 7/16 × 1 1/4

Keyway deviates from standard

B.S. 46
Keyway deviates from standard

20 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Port thread versions

Ø41.5 [1.634]
Ø41.0 [1.614]

E

F

C

D

G

H

min. 13 [0.51]

min. 19 [0.75]

A

min. 12 [0.47]

min. 18 [0.67]

B

151-1977.11

A

G main ports

B

UN main ports

E

ISO 228/1 - G3/4

F

1 1/16 - 12 UN

O-ring boss portC

G drain port

D

UNF drain port

G

G: ISO 228/1 - G1/4

H

9/16 - 18 UNF

O-ring boss port

© Danfoss | September 2021

BC152886483862en-000801 | 21

Technical Information
OMT and OMV Orbital Motors
OMT
Dimensions
OMT standard flange - European version
Ø125.000 [4.9213]
Ø124.937 [4.9188]
Ø123.8 [4.874]
Ø122.2 [4.811]

31 [1.22]

R1.6 [0.063]

22.4 [0.882]

72 [2.83]
64 [2.52]

L1

C

22.1 [0.870]
21.1 [0.831]

22.1 [0.870]
21.1 [0.831]

20.3 [0.799]
19.7 [0.776]

20.3 [0.799]
19.7 [0.776]

22.1 [0.870]
21.1 [0.831]

max. 69 [2.72]

13.0 [0.512]
12.0 [0.472]

D

13.0 [0.512]
12.0 [0.472]

13.0 [0.512]
12.0 [0.472]
13.0 [0.512]
12.0 [0.472]

23.6 [0.929]
22.4 [0.882]

LL2

18 [0.71]

60 [2.36]

32 [1.26]

9 [0.35]L3

Ø73 [2.87]
Ø71 [2.80]

max. 67 [2.64]

max. 71 [2.80]

E

22.1 [0.870]
21.1 [0.831]
100 [3.94]

Ø1
Ø1 60.459 [6.6[6. .31528 ]
3]R12 [0.47]

max. 143 [5.63]
Ø14 [0.55]

max. 128 [5.04]

max. 143 [5.63]

151-889.11

C:

Drain connection, G 1⁄4; 12 mm [0.47 in] deepD:

M10; 10 mm [0.39 in] deepE:

G 3⁄4; 17 mm [0.67 in] deep

22 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Type

OMT 160

OMT 200

OMT 250

OMT 315OMT 400

OMT 500

192

197

203

213

223

237

LMax.

mm
[in]

[7.56][7.76][7.99][8.39][8.78][9.33]

L1*

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

L2

mm

140

145

151

161

171

185

[in]

[5.51][5.71][5.94][6.34][6.73][7.28]

kg

20.0

20.5

21.0

22.0

23.0

24.0

[lb]

[44.1][45.2][46.3][48.5][50.7][52.9]

Weight* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

Output shaft

All shafts except P.t.o. shaft

P.t.o. shaft

L3

mm

82

102

[in]

[3.23][4.02]BC152886483862en-000801 | 23

Technical Information
OMT and OMV Orbital Motors
OMT
OMT standard flange - US version
Ø127.00 [5.000]
Ø126.95 [4.998]
Ø123.8 [4.874]
Ø122.2 [4.811]

31 [1.22]

R0.8 [0.003]

22.4 [0.882]

73.7 [2.902]
71.5 [2.815]
64.5 [2.539]
63.5 [2.500]

L1

L

L2

18 [0.71]

60 [2.36]

9 [0.35]

33.15 [1.305]
30.85 [1.215]

L3

Ø86.5 [3.406]
Ø85.5 [3.366]

23.6 [0.929]
22.4 [0.882]

max. 69 [2.72]

C

20.3 [0.799]
19.7 [0.776]

20.3 [0.799]
19.7 [0.776]

max. 67 [2.64]

D

max. 75 [2.95]

100 [3.94]

Ø1
Ø1 62.
61 3 [6.5[6. .39035 ]8]

R12.5 [0.492]

max. 143 [5.63]
Ø14 [0.55]

max. 128 [5.04]

max. 143 [5.63]

151-889.11.22

C:

Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D:

1 1⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

24 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Type

OMT 160

OMT 200

OMT 250

OMT 315OMT 400

OMT 500

192

197

203

213

223

237

LMax.

mm
[in]

[7.56][7.76][7.99][8.39][8.78][9.33]

L1*

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

L2

mm

140

145

151

161

171

185

[in]

[5.51][5.71][5.94][6.34][6.73][7.28]

kg

20.0

20.5

21.0

22.0

23.0

24.0

[lb]

[44.1][45.2][46.3][48.5][50.7][52.9]

Weight* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

Output shaft

Cyl. 1.5 in, Splined 1.5 inTapered 1.75 in

L3

mm

82

80.4

[in]

[3.23][3.17]BC152886483862en-000801 | 25

Technical Information
OMT and OMV Orbital Motors
OMT
OMT Wheel - European version
Ø172.000 [6.7717]
Ø171.937 [6.7692]
Ø160.000 [6.2992]
Ø159.937 [6.2967]
Ø126.25 [4.970]
Ø123.75 [4.872]

98.2 [3.866]

90.3 [3.555]

R1.2 [0.047]

8 [0.31]

7 [0.28]

R1.2 [0.047]

max. 69 [2.72]

13.0 [0.512]
12.0 [0.472]

C

22.1 [0.870]
21.1 [0.831]

22.1 [0.870]
21.1 [0.831]

20.3 [0.799]
19.7 [0.776]

20.3 [0.799]
19.7 [0.776]

22.1 [0.870]
21.1 [0.831]

13.0 [0.512]
12.0 [0.472]

D
23.6 [0.929]
22.4 [0.882]

13.0 [0.512]
12.0 [0.472]

45˚

18 [0.71]
4 [0.16]13.0 [0.512]
12.0 [0.472]

99 [3.90]

L

L2
L1

78.2 [3.079]

2 [0.08]x45˚

82 [3.23]

Ø123.8 [4.874]
Ø122.2 [4.811]
Ø73 [2.87]
Ø71 [2.80]

Emax. 67 [2.64]

max. 71 [2.80]

75 [2.95]

22.1 [0.870]
21.1 [0.831]
100 [3.94]

Ø2
Ø1 00.499 [7.6[7. .890
85 ]
8]

Ø18 [0.71]
R16 [0.63]

max. 180 [7.09]

max. 128 [5.04]

max. 180 [7.09]

151-897.12

C:

Drain connection, G 1⁄4; 12 mm [0.47 in] deepD:

M10; 10 mm [0.39 in] deepE:

G 3⁄4; 17 mm [0.67 in] deep

26 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Type

OMTW 160

OMTW 200

OMTW 250

OMTW 315

OMTW 400

OMTW 500

126

131

137

146

157

171

LMax.

mm
[in]

[4.96][5.16][5.39][5.75][6.18][6.73]

L1*

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

L2

mm

73

78

84

94

104

118

[in]

[2.87][3.07][3.31][3.70][4.09][4.65]

kg

22.0

22.5

23.0

24.0

25.0

26.0

[lb]

[48.5][49.6][50.7][52.9][55.1][57.3]

Weight* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

BC152886483862en-000801 | 27

Technical Information
OMT and OMV Orbital Motors
OMT
OMT Wheel - US version
Ø172.000 [6.7717]
Ø171.937 [6.7692]
Ø160.000 [6.2992]
Ø159.937 [6.2967]
Ø126.25 [4.970]
Ø123.75 [4.872]
Ø123.8 [4.874]
Ø122.2 [4.811]

7 [0.28]45˚

18 [0.71]
23.6 [0.929]
22.4 [0.882]

R1.2 [0.047]
20.3 [0.799]
19.7 [0.776]

20.3 [0.799]
19.7 [0.776]

C

max. 69 [2.72]

3.5 [0.138]

L2
L1
L

98.2 [3.866]

90.3 [3.555]

R1.2 [0.047]

7 [0.28]102.1 [4.020]
99.1 [3.902]
78.6 [3.094]
77.5 [3.051]

2 [0.08]x45˚

80.8 [3.181]
80.0 [3.150]

Ø73 [2.87]
Ø71 [2.80]

D

max. 67 [2.64]

max. 75 [2.95]

75 [2.95]

100 [3.94]

Ø2
Ø1 00.
99 4 [7.6[7. .890
85 ]
8]R16 [0.63]

max. 180 [7.09]

Ø18 [0.71]

max. 128 [5.04]

max. 180 [7.09]

151-897.11.22

C:

Drain connection, 9⁄16 - 18 UNF; 13 mm [0.51 in] deep, O-ring boss port

D:

1 1⁄16 - 12 UN; 19 mm [0.75 in] deep, O-ring boss port**

The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

28 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Type

OMTW 160

OMTW 200

OMTW 250

OMTW 315

OMTW 400

OMTW 500

126

131

137

146

157

171

LMax.

mm
[in]

[4.96][5.16][5.39][5.75][6.18][6.73]

L1

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

mm

73

78

84

94

104

118

[in]

[2.87][3.07][3.31][3.70][4.09][4.65]

L2
Weight

kg

22.0

22.5

23.0

24.0

25.0

26.0

[lb]

[48.5][49.6][50.7][52.9][55.1][57.3]

Type

Lmax mm [in]L1* mm [in]L2 mm [in]OMTW 160

123 [4.84]

16.5 [0.650]

73 [2.87]

OMTW 200

128 [5.04]

21.5 [0.846]

78 [3.07]

OMTW 250

134 [5.28]

27.8 [1.094]

84 [3.31]

OMTW 315

144 [5.67]

37.0 [1.457]

94 [3.70]

OMTW 400

154 [6.06]

47.5 [1.870]

104 [4.09]

OMTW 500

168 [6.61]

61.5 [2.421]

118 [4.65]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

BC152886483862en-000801 | 29

Technical Information
OMT and OMV Orbital Motors
OMT
OMT Brake-wheel - European version

m
ax

.2

Ø
Ø1 20099 .4.6 [7.8
[7 9
.8 0]
58
]

32
[9

75 [2.95]

CØ22 [0.87]

DE

13.2 [0.520]
12.8 [0.504]
4.2 [0.165]
3.8 [0.150]

Ø120.0 [4.724]
Ø119.6 [4.709]
Ø76.0 [2.992]
Ø75.8 [2.984]

111.4 [4.386]
110.6 [4.354]

G

L max. 1

L max. 2

L1

L2

7.2 [0.283]
6.8 [0.268]

35 [1.38]

Ø95.8 [3.772]
Ø95.6 [3.764]

115.4 [4.543]
114.6 [4.512]

H

10.2 [0.402]
9.8 [0.386]

Ø201 [7.91]
Ø180.00 [7.087]
Ø179.6 [7.074]

5.2 [0.205]
4.8 [0.189]
12.2 [0.480]
11.8 [0.465]

71 [2.80]]

67 [2.64]

3.1

F

13 [0.51]
12 [0.47]
11.1 [0.437]
10.9 [0.429]
23.3 [0.917]
22.7 [0.894]

13 [0.51]
12 [0.47]

I

23.1 [0.909]
22.9 [0.902]
20.3 [0.799]
19.7 [0.776]
22.1 [0.870]
21.1 [0.831]

20.3 [0.799]
19.7 [0.776]
22.1 [0.870]
21.1 [0.831]

5x72˚
4x90˚

10x36˚100 [3.94]
128 [5.04]
Ø172.00 [6.772]
Ø171.94 [6.769]

Ø140.0 [5.512]
Ø139.6 [5.496]

Ø100.0 [3.937]
Ø99.6 [3.921]

151-1443.11

C:

Brake-release port G 1/4; 12 mm [0.47 in] deep (BS/ISO 228/1)

D:

Drain connection G 1/4; 12 mm [0.47 in] deepE:

G 3/4; 17 mm [0.67 in] deep

30 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMTF:

4 × M12; 27 mm [1.06 in] deepG:

10 × M12

H:

Wheel bolts 5 × M14 × 1.5

I:M10; 10 mm [0.39 in] deepType
LMax. 1
LMax. 2
L1*
L2
WeightOMT 160 FXOMT 200 FX

OMT 250 FXOMT 315 FXOMT 400 FXOMT 500 FX

mm

225

230

236

245

256

270

[in]

[8.86][9.06][9.29][9.65][10.08][10.63]

mm

228

234

240

249

260

274

[in]

[8.98][9.21][9.45][9.80][10.24][10.79]

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

mm

62

67

74

83

93

107

[in]

[2.45][2.65][2.89][3.26][3.67][4.22]

kg

31.0

31.5

32.0

33.0

34.0

35.0

[lb]

[68.3][69.4][70.5][72.8][75.0][77.2]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

BC152886483862en-000801 | 31

Technical Information
OMT and OMV Orbital Motors
OMT
OMT Brake-standard - European version
Ø125.000 [4.9213]
Ø124.937 [4.9188]
Ø123.5 [4.862]
Ø122.5 [4.823]
Ø86.2 [3.406]
Ø85.5 [3.366]

31.5 [1.240]

104 [4.09]

32 [1.26]

60 [2.36]

12 [0.47]

R1.6 [0.063]
18 [0.71]

82 [3.23]

12 [0.47]

85.8 [3.378]

L

E

L2

90.5 [3.563]

13.0 [0.512]
12.0 [0.472]
13.0 [0.512]
12.0 [0.472]

23.6 [0.929]
22.4 [0.882]

13.0 [0.512]
12.0 [0.472]

C

13.0 [0.512]
12.0 [0.472]
22.1 [0.870]
21.1 [0.831]
20.3 [0.799]
19.7 [0.776]

max. 67 [2.64]

max. 71 [2.80]

22.1 [0.870]
21.1 [0.831]
20.3 [0.799]
19.7 [0.776]

22.1 [0.870]
21.1 [0.831]

22.1 [0.870]
21.1 [0.831]

max. 171 [6.73]
Ø160.4 [6.315]
Ø159.6 [6.283]
max. 147.3 [5.799]

100 [3.94]

Ø14 [0.55]

max. 147.3 [5.799]

max. 128 [5.04]

max. 170 [6.69]

L1

D
F

max. Ø187 [7.36]

151-1453.10

C:

G 3/4; 17 mm [0.67 in] deep (BS/ISO 228/1)

D:

Drain connection G 3/8; 14 mm [0.55 in] deepE:

Brake-release port G 1/4; 12 mm [0.47 in] deep

32 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
M10; 10 mm [0.39 in] deep

F:
Type

OMT 160
FL/FH

OMT 200
FL/FH

OMT 250
FL/FH

OMT 315
FL/FH

OMT 400
FL/FH

OMT 500
FL/FH

230

233

241

250

261

275

LMax.

mm
[in]

[9.06][9.17][9.49][9.84][10.28][10.83]

L1*

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

L2

mm

178

183

189

199

209

223

[in]

[7.01][7.20][7.44][7.83][8.23][8.78]

kg

24.5

25.0

25.5

26.5

27.5

28.5

[lb]

[54.0][55.1][56.2][58.4][60.6][62.8]

Weight* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

OMT short - European version
max. Ø186 [7.32]

13 [0.512]
12 [0.472]

31 [1.22]

Ø14 [0.55]

C
max. 69 [2.72]

13 [0.512]
12 [0.472]

8 [0.31]

13 [0.512]
12 [0.472]

D

22.1 [0.870]
21.1 [0.831]

22.1 [0.870]
21.1 [0.831]

20.3 [0.799]
19.7 [0.776]

20.3 [0.799]
19.7 [0.776]

22.1 [0.870]
21.1 [0.831]

13 [0.512]
12 [0.472]

L1

L2
L
23.6 [0.926]
22.4 [0.882]

18 [0.71]

22 [0.87]

R1 [0.04]

1 [0.04]x45˚

8 [0.31]Ø125.000 [4.9213]
Ø124.937 [4.9188]

28 [1.10]

max. 67 [2.64]

max. 71 [2.80]

E
42 [1.65]

50 [1.97]

22.1 [0.870]
21.1 [0.831]

Ø6 [0.24]

100 [3.94]

28 [1.10]

max. 128 [5.04]

Ø16
Ø15 0.4 [6.39.61
[6.2 5]83]

Ø6 [0.24]

151-898.11

C:

Drain connection G 1⁄4; 12 mm [0.47 in] deep

© Danfoss | September 2021

BC152886483862en-000801 | 33

Technical Information
OMT and OMV Orbital Motors
OMT
M10; 10 mm [0.39 in] deep E: G 3⁄4; 17 mm [0.67 in] deep

D:

*

Type

OMTS 160

OMTS 200

OMTS 250

OMTS 315

OMTS 400

OMTS 500

146

151

157

166

177

191

LMax.

mm
[in]

[5.75][5.94][6.18][6.54][6.97][7.52]

L1

mm

16.5

21.5

27.8

37.0

47.5

61.5

[in]

[0.650][0.846][1.094][1.457][1.870][2.421]

mm

96

101

107

116

127

142

[in]

[3.78][3.98][4.21][4.57][5.00][5.59]

L2
Weight

kg
[lb]

Type

Lmax

L1

L2

OMTS 500

OMTS
Installation
The cardan shaft of the OMTS motor acts as an “output shaft”. Because of the movement of the shaft, noseal can be fitted at the shaft output.
Internal oil leakage from the motor will therefore flow into the attached component.
During start and operation it is important that the spline connection and the bearings in the attachedcomponent receive oil and are adequately lubricated. To ensure that the spline connection receives
sufficient oil, a conical sealing ring between the shaft of the attached component and the motor
intermediate plate is recommended. This method is used in the OMT.
The conical sealing ring (code. no. 633B9022) is supplied with the motor.
To ensure that oil runs to the bearings and other parts of the attached component, the stop plate musthave a hole in it (see fig. below).
We recommend an O-ring between motor and attached component. The O-ring (code no. 151B1040) is
supplied with the motor. If motor and attached component have been separated, remember to refill
before starting up. Fill the oil through the drain connection.

*

The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

34 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT
Attached component dimensions
OMTS dimensions of the attached component in millimeter [inches]F

2.35 [0.093]
2.25 [0.089]

ACØ53.5 [2.106]
Ø53.5 [2.098]

Ø88.5 [3.484]
Ø87.5 [3.445]

Ø133.0 [5.236]
Ø132.6 [5.220]

min. Ø55 [2.17]

GH

Ø51.5 [2.028]
Ø50.5 [1.988]

39.5 [1.555]
38.5 [1.516]

KØ125.063 [4.9237]
Ø125.000 [4.9212]

min. Ø6 [0.24]

K 0.25 [0.010]
K 0.1˚D
2.5 [0.098]
1.5 [0.059]

8.2 [0.323]
7.8 [0.307]

min. 5 [0.2]25.5 [1.004]
24.5 [0.965]

Ø63.5 [2.500]
Ø62.5 [2.461]

BE
18.5 [0.728]
17.5 [0.689]
30 [1.181]
29 [1.142]

11.4 [0.449]
11.0 [0.433]
46.3 [1.823]
45.7 [1.799]
69.4 [2.732]
68.6 [2.701]

151-452.10

AC

O-ring: 125 × 3 mm
Drain connection

B

External drain channel

D

Conical seal ring

G 1⁄4; 12 mm [0.47 in] deep
E

Internal drain channelFG

Oil circulation holeH

M12; min. 18 mm [0.71 in] deep
Hardened stop plate

Attached component internal splines
The attached component must have internal splines corresponding to the external splines on the motor
cardan shaft (see the following drawing).

Material:
Case hardening steel with a tensile strength corresponding at least to 20 MoCr4 (900 N/mm2) or SAE
8620.

© Danfoss | September 2021

BC152886483862en-000801 | 35

Technical Information
OMT and OMV Orbital Motors
OMT
Hardening specification:••

On the surface: HV = 750 ± 50
0.7 ± 0.2 mm under the surface: HV = 560

Internal involute spline data; Standard ANS B92.1-1970, class 5 (corrected m · X = 1; m = 2.1166)
Flat root side fit

mmin

Number of teeth

z

16

16

Pitch

DP

12/24

12/24

Pressure angle

30°

30°

D

33.8656

1.3333Major dia.

Dri

38.40+0.4

1.51180+0.0157

Form dia. (min.)

Dfi

37.6

1.4803

Minor dia.

Di

32.1500+ 0.04

1.26570+ 0.00157

Space width (circular)

Lo

4.516±0.037

0.1777±0.0014

Tooth thickness (circular)

So

2.170

0.0854

Fillet radius

Pitch dia.

Rmin.

0.5

0.02

Max. measurement between pins*

l26.90+ 0.1

1.0590+0.004

Pin dia.

d4.834±0.001

0.1903±0.00004* Finished dimensions (when hardened).

Rmin

Lo
So
l

d
Dri
Di

Dfi
D

151-455.10

Motor or attached component drain connection
Use the drain line when pressure in the return line exceeds the permissible pressure on the shaft seal of
the attached component.
Connect the drain line either at the:• Motor drain connection• Drain connection of the attached component
If a drain line is fitted to the attached component, it must be possible for oil to flow freely between motor
and attached component.
The drain line must be led to the tank in such a way that there is no risk of the motor and attachedcomponent being drained of oil when at rest.
The maximum pressure in the drain line is limited by the attached component and its shaft seal.
36 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMT versions and code numbers
This section shows the different versions/configuration codes and the ordering numbers.
• Section OMT technical data, specify the technical data for OMT for each shaft type.

••© Danfoss | September 2021

In section OMT function diagrams, the diagram for each motor size is shown.
See OMT dimensions for outer main dimensions for the different OMT motor types.

BC152886483862en-000801 | 37

Technical Information
OMT and OMV Orbital Motors
OMV versions and code numbers
This section shows the different versions/configuration codes and the ordering numbers.
• Section OMV technical data on page 40, specify the technical data for OMV for each shaft type.

••

In section OMV function diagrams on page 45, the diagram for each motor size is shown.
See OMV dimensions on page 53 for outer main dimensions for the different OMV motor types.

OMV versions and code numbers
OMV standard motors
Mounting flange: Standard 4 hole flange
Spigot diameter Ø160 mm [6.30 in]
Bolt circle
diameter

Ø200 mm [7.89 in]

Shaft

Main Port size

Drain Port size

Check valve

EuropeanversionUS version

Main typedesignation

Conf. code

Cyl. Ø50 mm

G1

G 1/4

Yes

Yes

-

OMV

A1

Splined 2.125 in

G1

G 1/4

Yes

Yes

-

OMV

A2

Tapered 60 mm

G1

G 1/4

Yes

Yes

-

OMV

A3

Cyl. 2.25 in

1 5/16-12 UN

9/16-18 UNF

Yes

-

Yes

OMV

A4

Splined 2.125 in

1 5/16-12 UN

9/16-18 UNF

Yes

-

Yes

OMV

A5

Tapered 2.25 in

1 5/16-12 UN

9/16-18 UNF

Yes

-

Yes

OMV

A6

Code numbers OMV Standard 4 hole flange
Conf. code

Displacement
315

400

500

630

800

A1

151B3100

151B3101

151B3102

151B3103

151B3104A2

151B3105

151B3106

151B3107

151B3108151B3109

A3

151B3110

151B3111

151B3112

151B3113

151B3114

A4

151B2150

151B2151

151B2152

151B2153

151B2154A5

151B2155

151B2156

151B2157

151B2158

151B2159

A6

151B2160

151B2161

151B2162

151B2163

151B2164

Mounting flange: OMV SAE-C flange
Spigot diameter

Ø127 mm [5.00 in]

Bolt circle diameter Ø161.9 mm [6.37 in]
Shaft

Main Port size Drain Port size European version US version Check valve Main type designation Conf. code

Cyl. 2.25 in

1 5/16-12 UN

9/16-18 UNF

-

Yes

Yes

OMV

B1

Splined 2.125 in

1 5/16-12 UN

9/16-18 UNF

-

Yes

Yes

OMV

B2

Code numbers OMV - SAE-C flange
Conf. code

Displacement
315

400

500

630

800

B1

151B2183

151B2184

151B2185

151B2186

151B2187

B2

151B2188

151B2189

151B2190

151B2191

151B2192

38 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV versions and code numbers
Mounting flange: OMV Wheel
Spigot diameter Ø180 mm [7.09 in]
Bolt circle
diameterØ224 mm [8.82 in]

Shaft

Main Port size

Drain Port size

Check valve

EuropeanversionUS version

Main typedesignation

Conf. code

Cyl. Ø50 mm

G1

G 1/4

Yes

Yes

-

OMVW

C1

Splined 2.125 in

G1

G 1/4

Yes

Yes

-

OMVW

C2

Tapered 2.25 in

1 5/16-12 UN

9/16-18 UNF

Yes

-

Yes

OMVW

C3

Code numbers OMVW
Conf. code

Displacement
315

400

500

630

800

C1

151B3115

151B3116

151B3117

151B3118

151B3119C2

151B3120

151B3121

151B3122

151B3123

151B3124

C3

151B2170

151B2171

151B2172

151B2173

151B2174

Mounting flange: OMV Short
Spigot diameter Ø140 mm [5.51 in]
Bolt circle
diameter

Ø180 mm [7.09 in]

Shaft

Main Port size

Drain Port size

Check valve

EuropeanversionUS version

Main typedesignation

Conf. code

No output shaft

G1

G 1/4

Yes

Yes

-

OMVS

D1

Code numbers OMVS
Conf. code

D1

Displacement
315

400

500

630

800

151B3125

151B3126

151B3127

151B3128

151B3129

OMV features
Features available (options):
Speed sensor
Motor with tacho connection
Viton shaft seal
PaintedUltra short

•
•
•
•
•

© Danfoss | September 2021

BC152886483862en-000801 | 39

Technical Information
OMT and OMV Orbital Motors
OMV technical data

OMV, OMVW, OMVS technical data
Type

Motor size

OMV
OMVW
OMVS

OMV
OMVW
OMVS

OMV
OMVW
OMVS

OMV
OMVW
OMVS

OMV
OMVW
OMVS

315

400

500

630

800

Geometric displacement

cm3 [in3]

314.5 [19.19]

400.9 [24.46]

499.6 [30.49]

629.1 [38.39]

801.8 [48.93]

Maximum speed

min-1 [rpm] cont.

510

500

400

315

250

int1)
Maximum torqueMaximum output

630

600

480

380

300

N•m [lbf•in] cont.

920 [8140]

1180 [10440]

1460 [12920]

1660 [14690]

1880 [16640]

int.1)

1110 [9820]

1410 [12480]

1760 [15580]

1940 [17170]

2110 [18680]

kW [hp]Maximum pressure drop bar [psi]Maximum oil flowl/min[USgal/
min]

cont.

42.5 [57.0]

53.5 [71.7]

53.5 [71.7]

48.0 [64.4]

42.5 [57.0]

int.1)

51.0 [68.4]

64.0 [85.8]

64.0 [85.8]

56.0 [75.1]

48.0 [64.4]

cont.

200 [2900]

200 [2900]

200 [2900]

180 [2610]

160 [2320]

int.1)

240 [3480]

240 [3480]

240 [3480]

210 [3050]

180 [2610]

peak2)

280 [4060]

280 [4060]

280 [4060]

240 [3480]

210 [3050]cont.

160 [42.3]

200 [52.8]

200 [52.8]

200 [52.8]

200 [52.8]

int.1)

200 [52.8]

240 [63.4]

240 [63.4]

240 [63.4]

240 [63.4]

8 [116]

8 [116]

8 [116]

8 [116]

8 [116]

Maximum startingpressure with unloaded
shaft

bar [psi]

Minimum starting
torqueat max. press. drop cont. 710 [6280]
N•m [lbf•in]

910 [8050]

1130 [10000]

1330 [11770]

1510 [13360]

at max. press. drop int.1)
N•m [lbf•in]1090 [9650]

1360 [12040]

1550 [13720]

1700 [15050]

850 [7520]

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.

Type
OMV
OMVW
OMVS

Maximum inlet pressure

Maximum return pressure
with drain line

bar [psi]cont.

210 [3050]

140 [2030]

bar [psi]

int.1)

250 [3630]

175 [2540]

bar [psi]

peak2)

300 [4350]

210 [3050]

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 maximum permissible combination of flow and pressure, see OMV function diagrams on page 45 foractual motor.
Maximum permissible shaft seal pressure
Motor with check valves and without use of drain connection
The pressure on the shaft seal never exceeds the pressure in the return line.

151-320.10

40 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV technical data
Motor with check valves and with drain connection
The shaft seal pressure equals the pressure on the drain line.
Maximum return pressure without drain line or maximum pressure in the drain line
P
psi
1500

P
bar
100
90

1200

80
70

900

60
50

600

40
30

300

20
10

0

0
0

100

200

300

400

500

600

700

800

max.

min-1
(rpm)

151-1674.10– – – – Intermittent operation: the permissible values may occur for max. 10% of every minute.
Continuous operation

Pressure drop in motor
′p
psi

′p

bar
16

200

14
12

150

10
8

100
6
50

4
2

0

Q

0
0

20

40

0

5

10

60
15

80
20

100
25

120
30

140
35

160
40

180
45

200
50

l/min

Q

US gal/min

151-1410.10

The curve applies to an unloaded motor shaft and an oil viscosity of 35 mm2/s [165 SUS]
Oil flow in drain line
Maximum oil flow in the drain line at a return pressure less than 5-10 bar [75-150 psi]

© Danfoss | September 2021

Pressure drop

Viscosity

bar

[psi]

mm2/s

Oil flow in drain line
[SUS]

l/min

[US gal/min]

140[2030]

20

[100]

3.0

[0.79]

35

[165]

2.0

[0.53]BC152886483862en-000801 | 41

Technical Information
OMT and OMV Orbital Motors
OMV technical data
Maximum oil flow in the drain line at a return pressure less than 5-10 bar [75-150 psi] (continued)
Pressure drop

Viscosity

bar

[psi]

mm2/s

Oil flow in drain line
[SUS]

l/min

[US gal/min]

210[3050]

20

[100]

6.0

[1.59]

35

[165]

4.0

[1.06]

Direction of shaft rotation

Permissible shaft loads
Shaft load and bearing life time
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 fromthe 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.
For 3,000,000 shaft revolutions or 500 hours – increase these shaft loads with 52%.
The dash curve shows maximum radial shaft load. Any shaft load exceeding the values shown in the
curve will involve a risk of breakage.
Bearing life calculations can be made using the explanation and formula provided in the chapter Bearing
dimensioning in the technical information General Orbital Motors, BC152886483554.
OMV mounting flange: Standard

Shaft:All shaft types

42 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV technical data
Prad. Prad.
lbf

N

16000

70000

14000

0
- + Pmax. =15000 N=3372 lbf

60000

12000

50000

10000
40000
8000
30000

6000

20000

4000

10000

2000
0

0
-80

-3

-60

-2.5

-40

-2

-1.5

-20

-1

0

-0.5

0

20

0.5

40

1

1.5

60

2

2.5

80

3

100

3.5

4

120 mm4.5

in

151-1973.10

OMV mounting flange: Wheel

Shaft:All shaft types
Prad. Prad.
lbf

N

16000

70000

14000
12000

0
- +

60000

Pmax. =15000 N=3372 lbf

50000

10000
40000
8000
6000
4000

30000
20000

2000

10000

0

0
0

0

20

40

1

60

2

80

100

3

4

120

140

5

160

6

180

200 mm7

in151-1969.10

OMV mounting flange: SAE-C

Shaft:All shaft types© Danfoss | September 2021

BC152886483862en-000801 | 43

Technical Information
OMT and OMV Orbital Motors
OMV technical data
Prad. Prad.
lbf
14000

N
60000

A

12000
50000

0
- + Pmax. =10000 N=2248 lbf

B
B

10000
40000

A

8000
30000
6000
4000

20000

2000

10000

0

0
-80

-3

-60

-2.5

-40

-2

-1.5

-20

-1

-0.5

0

0

20

0.5

40

1

1.5

60

2

2.5

80

3

100

3.5

4

120 mm4.5

in

151-1965.10

A:

Cyl. 2.25 in shaft

B:

Splined 2.125 in shaft

44 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV function diagrams
Explanation of function diagram use, basis and conditions can be found in Speed, torque, and output on
page 7.

Continuous rangeIntermittent range (max. 10% operation every minute)

Maximum permissible continuous/intermittent pressure drop for the actual shaft version can be found in
OMV technical data on page 40.
Intermittent pressure drop and oil flow must not occur simultaneously.

Q=200 l/min[52.8 US gal/min]

150 l/min[39.6 US gal/min]
160 l/min[42.2 US gal/min]

125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]

1200

10000

75 l/min[19.8 US gal/min]

50 l/min[13.2 US gal/min]

11000

N• m

25 l/min[6.6 US gal/min]lbf• in

Q=10 l/min[2.6 US gal/min]

OMV 315 function diagram′ p=240 bar

1100

9000

1000

8000

900

7000

800

3480 psi

N=50kW

700

6000

600

5000
4000

200

1000

100

0

0

105 bar1520 psi

85%

300

2000

140 bar2030 psi

40hp

η t =87%

10kW
10hp

N=5kW
5hp

400
3000

50hp

20kW

20hp

500

40kW

30kW

30hp

200 bar2900 psi
170 bar2540 psi

70 bar1020 psi

80%′ p= 35 bar

η t =70%
0

50

100

150

200

250

300

350

510 psi

400

450

500

550

600

650

min-1
(rpm)
151-870.11

OMV 400 function diagram

12000

Q=240 l/min[63.4 US gal/min]

200 l/min[52.8 US gal/min]

175 l/min[46.2 US gal/min]

150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]

75 l/min[19.8 US gal/min]

1600

50 l/min[13.2 US gal/min]

14000

25 l/min[6.6 US gal/min]N• m

Q=10 l/min[2.6 US gal/min]

OMV 400lbf• in

1400′ p=240 bar
3480 psi

1200
10000
1000
8000

600
10hp

η t =88%

0

0

10kW
80%

70 bar1020 psi

η t =70%′ p= 35 bar

N=5kW

0

50

100

105 bar1520 psi

20kW

85%

5hp
200

140 bar2030 psi

87%

400

2000

30kW

20hp

6000

4000

40kW

50hp
40hp

800

200 bar2900 psi
175 bar2540 psi

N=50kW

30hp

150

200

250

300

510 psi

350

400

450

500

550

600

min-1
(rpm)
151-871.11© Danfoss | September 2021

BC152886483862en-000801 | 45

Technical Information
OMT and OMV Orbital Motors
OMV function diagrams
OMV 500 function diagram

Q=240 l/min[63.4 US gal/min]

200 l/min[52.8 US gal/min]

175 l/min[46.2 US gal/min]

150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

1600

100 l/min[26.4 US gal/min]

14000

75 l/min[19.8 US gal/min]

1800

50 l/min[13.2 US gal/min]

16000

25 l/min[6.6 US gal/min]N• m

Q=10 l/min[2.6 US gal/min]

OMV 500lbf• in′ p=240 bar
3480 psi

N=60kW
12000
10000

1400
1200
1000

8000

40hp

η t =88%

600
4000

87%

400

2000

200

0

0

20kW

20hp
N=5kW

80%

η t =70%
50

100

150

105 bar1520 psi

30hp

10kW

85%

0

140 bar2030 psi

40kW

30kW

800
6000

200 bar2900 psi
175 bar2540 psi

50kW
60hp

50hp

10hp

70 bar1020 psi

5hp′ p= 35 bar
510 psi

200

250

300

350

400

450

500

min-1
(rpm)
151-872.11

OMV 630 function diagram

15000

Q=240 l/min[63.4 US gal/min]

200 l/min[52.8 US gal/min]

175 l/min[46.2 US gal/min]

150 l/min[39.6 US gal/min]

125 l/min[33.0 US gal/min]

100 l/min[26.4 US gal/min]

75 l/min[19.8 US gal/min]

2000

50 l/min[13.2 US gal/min]

17500

25 l/min[6.6 US gal/min]N• m

Q=10 l/min[2.6 US gal/min]

OMV 630lbf• in

1750′ p=210 bar

N=60kW1500

180 bar2610 psi

50kW

30kW

12500

3050 psi

40kW

1250

60hp

50hp

150 bar2180 psi

40hp

120 bar1740 psi

10000
1000

η t =89%

7500

87%

N=5kW
500

2500

250

0

0

30hp

10kW

750
5000

20kW

90 bar1300 psi

20hp

85%
80%

10hp

60 bar870 psiη t =70%5hp′ p= 30 bar

440 psi

0

25

50

75

100

125

150

175

200

225

250

275

300

325

350

375

400

min-1
(rpm)
151-879.11

46 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV function diagrams
OMV 800 function diagram

15000
12500

Q = 240 l/min

63.4 US gal/min

200 l/min

52.8 US gal/min

175 l/min46.2 US gal/min

150 l/min

39.6 US gal/min

125 l/min
33.0 US gal/min

2000

100 l/min
26.4 US gal/min

17500

75 l/min19.8 US gal/min

2250

50 l/min13.2 US gal/min

20000

Q = 10 l/min

N• m

2.6 US gal/min
25 l/min
6.6 US gal/min

OMV 800lbf•inp=180 bar
2610 psi
160 bar2320 psi

1750
1500

130 bar1890 psi

1250
10000

100 bar1450 psi

1000
7500
750
5000

75 bar1090 psi

500

2500

250

50 bar730 psip=25bar00

360 psi
0

25

50

75

100

125

150

175

200

225

250

275

300

min-1
(rpm)
P301 250.11© Danfoss | September 2021

BC152886483862en-000801 | 47

Technical Information
OMT and OMV Orbital Motors
Shaft version

OMV shaft version
82 [3.23]
26 [1.02]
9.5 [0.374]
60˚

M12

R0.5 [0.020]

A-A

A

53.5 [2.106]
53.2 [2.094]

Ø60 [2.36]

AØ50.018 [1.9692]
Ø50.002 [1.9686]

A

5.5 [0.217]
4.5 [0.177]

70.5 [2.776]
70.0 [2.756]
79 [3.11]

14.000 [0.5512]
13.957 [0.5495]

D

151-878.12_A

A:

Cylindrical 50 mm shaft

D:

Parallel key
A14 × 9 × 70; DIN 6885
Keyway deviates from standard
82.2 [3.236]
81.8 [3.220]
60˚

min. 20[0.78]
3/8 -16 UNC

R0.5 [0.020]

A-A

62.92 [2.477]
62.66 [2.467]

Ø60 [2.36]

BØ57.15 [2.250]
Ø57.10 [2.248]

AA
57.5 [2.264]
56.9 [2.240]

13.1 [0.516]
10.9 [0.429]

12.73 [0.501]
12.70 [0.500]

E

151-878.12_B

B:

Cylindrical 2.25 in shaft for OMV with standard mounting flange

E:

Parallel key
1/2 × 1/2 × 21/4 in; B.S. 46
Keyway deviates from standard

48 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
Shaft version
99.2 [3.906]
98.8 [3.890]

min. 26[1.02]½ -20 UNF

R0.5 [0.020]

60˚

A-A

62.93 [2.478]
62.66 [2.467]

Ø60 [2.36]

C

57.15 [2.250]
57.10 [2.248]

AA
70.4 [2.772]
70.2 [2.763]

12.73 [0.501]
12.70 [0.500]

F

151-878.12_C

C

Cylindrical 2.25 in shaft for OMV with mounting flange SAE-C

F

Parallel key
1/2 × 1/2 × 21/4 in; B.S. 46
Keyway deviates from standard
82[3.23]
26 [1.02]
9.5 [0.374]
M12

45˚
R0.5 [0.020]

A-A

Ø60 [2.36]

D

53.975 [2.1250]
53.950 [2.1240]

AA
58 [2.28]
56 [2.20]

151-1918.10_D

D:

Involute splined shaft ANS B92.1 - 1996 standard
Flat root side fit
Pitch 8/16; Teeth 16
Major dia. 2.125 in
Pressure angle 30°© Danfoss | September 2021

BC152886483862en-000801 | 49

Technical Information
OMT and OMV Orbital Motors
Shaft version
US version
82.2 [3.236]
81.8 [3.220]

min. 20 [0.78]

45˚
3/8 -16 UNC

R0.5 [0.020]

A-A

Ø60 [2.36]

EØ53.975 [2.1250]
Ø53.950 [2.1240]

AA
57 [2.24]
55 [2.17]

151-1918.10_E

E: Involute splined shaft for OMV with standard mounting flange ANS B92.1 - 1996 standard
Flat root side fit
Pitch 8/16; Teeth 16
Major dia. 2.125 in
Pressure angle 30°
US version
76.9 [3.028]
76.5 [3.011]
min. 26 [1.02]30˚½ -20 UNF

R0.5 [0.020]

A-A

Ø60 [2.36]

FØ53.972 [2.1249]
Ø53.954 [2.1242]

AA
56.3 [2.217]
55.3 [2.177]

151-1918.10_F

F: Involute splined shaft for OMV with mounting flange SAE-C ANS B92.1 - 1996 standard
Flat root side fit
Pitch 8/16; Teeth 16
Major dia. 2.125 in
Pressure angle 30°

50 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
Shaft version
23 [0.91]

Ø60 [2.36]

Ø8 [0.31]

A

32.25 [1.270]
32.05 [1.262]JØ9 [0.35]
M42x3 [0.12]
Ø78 [3.07]

I

G

A-A

7 [0.28]

A
40.5 [1.594]
40.0 [1.575]
70 [2.76]

6 [0.24]16.000 [0.6299]
15.957 [0.6282]

K

105 [4.13]
151-1919.10_G

G:

Tapered 60 mm shaft

J:

DIN 937
Across flats: 65 mm
Tightening torque: 750 ±50 N•m [6640 ±440 lbf•in]

I:

Taper 1:10

K:

Parallel key B16 × 10 × 32
DIN 6885
Keyway deviates from standard
16 [0.63]
45˚

L

4.5 [0.177]

A-A

A
51.1 [2.012]
50.5 [1.988]
73.6 [2.898]
72.4 [2.850]
100.4 [3.953]
99.6 [3.921]

7.29 [0.287]*
7.19 [0.283]

Ø60 [2.36]

HM

Ø4 [0.16]
Ø57.20 [2.252]
Ø57.10 [2.248]

A

14.308 [0.5633]
14.288 [0.5625]

N

151-1919.10_H

H:

Tapered 2.25 in shaft

L:

Cone 1:8
SAE J501

M:

11/2 - 18 UNEF
Across flats: 2 3/8 inTightening torque: 750 ±50 N•m [6640 ±440 lbf•in]N:

Parallel key
9/16 × 9/16 × 2 in

© Danfoss | September 2021

BC152886483862en-000801 | 51

Technical Information
OMT and OMV Orbital Motors
Shaft version
B.S. 46
Keyway deviates from standard

OMV port thread versions
A
min. 18 [0.67]

EA:

G main ports

E:

ISO 228/1 - G1

151-1977.11_A

BØ41.5 [1.634]
Ø41.0 [1.614]

B:UN main ports

F:

1 5/16 - 12 UN O-ring boss port

min. 19 [0.75]

F

151-1977.11_B

G

min. 12 [0.47]

CC:

G drain port

G:

ISO 228/1 - G1/4

151-1977.11_C

H

min. 13 [0.51]

D

D:

UNF drain port

H:

9/16 - 18 UNF O-ring boss port

151-1977.11_D

52 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV dimensions

OMV dimensions - European version
OMV standard flange - European version
Ø160.000 [6.2992]
Ø159.937 [6.2967]

39.4 [1.551]
38.6 [1.520]

R1.6 [0.063]
20 [0.79]

60 [2.36]

L2
D

69 [2.72]

8 [0.31]14.0 [0.551]
13.0 [0.512]
14.0 [0.551]
13.0 [0.512]

max. 76 [2.99]

EL1

14.0 [0.551]
13.0 [0.512]

C

24.6 [0.969]
23.4 [0.921]
14.0 [0.551]
13.0 [0.512]

L

2 [0.08]x45˚

11 [0.43]

33˚

40 [1.57]

L3

Ø146.4 [5.764]
Ø145.0 [5.710]
Ø88 [3.46]
Ø90 [3.54]

23.9 [0.941]
22.9 [0.902]
23.9 [0.941]
22.9 [0.902]
25.3 [0.996]
24.7 [0.972]

23.9 [0.941]
22.9 [0.902]
23.9 [0.941]
22.9 [0.902]
25.3 [0.996]
24.7 [0.972]

max. 77 [3.03]

max. 81 [3.19]

0]89 ][7. 58.4 [7.8
00
Ø2 199.6
ØR16 [0.63]

max. 181.3 [7.14]

120 [4.72]
max. 149 [5.87]

Ø18 [0.71]
max. 181.3 [7.14]

151-890.12

C:© Danfoss | September 2021

Drain connection G 1⁄4; 12 mm [0.47 in] deep

BC152886483862en-000801 | 53

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
D:

M12; 12 mm [0.47 in] deepE:

G 1; 18 mm [0.71 in] deepType

OMV 315OMV 400

OMV 500

OMV 630

OMV 800

LMax.

mm [in]216 [8.50]

223 [8.78]

231 [9.09]

242 [9.53]

256 [10.08]

L1*

mm [in]22.0 [0.866]

29.0 [1.142]

37.0 [1.457]

47.5 [1.870]

61.5 [2.421]

L2mm [in]160 [6.30]

167 [6.57]

175 [6.89]

186 [7.32]

200 [7.87]

Weightkg [lb]31.8 [70.1]

32.6 [71.9]

33.5 [73.9]

34.9 [76.9]

36.5 [80.5]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft

Cyl. 50 mm Splined 2.125 inTapered 60 mm

L3

82 [3.23]

105 [4.13]

54 | © Danfoss | September 2021

mm [in]BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
OMV Wheel - European version
Ø180.000 [7.0866]Ø179.937 [7.0841]
Ø146.4 [5.764]
Ø145.0 [5.710]
Ø88 [3.46]
Ø90 [3.54]

max. 107.7 [4.240]

R1.2 [0.047]
8 [0.31]

22 [0.87]

D

23.9 [0.941]
22.9 [0.902]
25.3 [0.996]
24.7 [0.972]

23.9 [0.941]
22.9 [0.902]
23.9 [0.941]
22.9 [0.902]
25.3 [0.996]
24.7 [0.972]

C
max. 76 [2.99]

14.0 [0.551]R1.2 [0.047]
13.0 [0.512]
23.9 [0.941]
22.9 [0.902]

14.0 [0.551]
13.0 [0.512]

L1

14.0 [0.551]
13.0 [0.512]

3.6[0.142]

24.6 [0.969]
23.4 [0.921]
14.0 [0.551]
13.0 [0.512]

LL2

20 [0.79]

10 [0.39]

108 [4.25]
79 [3.11]

33˚L3

2 [0.08]x45˚

Ø148.0 [5.827]
Ø147.9 [5.823]

max. 77 [3.03]
85 [3.35]

max. 81 [3.19]

E

120 [4.72]
max. 149 [5.87]

1]83 ][8. 07.3 [8.84
2 7
Ø2 223.
Ø

max. 200 [7.87]

Ø194.000 [7.6378]
Ø193.928 [7.6350]

Ø18 [0.71]
R16 [0.63]

max. 200 [7.87]

151-899.12© Danfoss | September 2021

C:

Drain connection G 1⁄4; 12 mm [0.47 in] deepD:

M12; 12 mm [0.47 in] deepE:

G 1; 18 mm [0.71 in] deep

BC152886483862en-000801 | 55

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
Type
LMax.

mm [in]OMV 315OMV 400

OMV 500

OMV 630

OMV 800

148 [5.83]

155 [6.10]

163 [6.42]

174 [6.85]

188 [7.40]L1*mm [in]22.0 [0.866]

29.0 [1.142]

37.0 [1.457]

47.5 [1.870]

61.5 [2.421]

L2mm [in]92 [3.62]

99 [3.90]

107 [4.21]

118 [4.65]

132 [5.20]

Weightkg [lb]32.4 [71.4]

33.2 [73.2]

34.1 [35.5]

35.5 [78.3]

37.1 [81.8]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft

Cyl. 50 mm

Tapered 60 mm

L3

82 [3.23]

105 [4.13]mm [in]8 [0.31]
1 [0.04]x45˚

OMV short - European version
Ø140.000 [5.5118]
Ø139.937 [5.5093]

DØ14 [0.55]

82 [3.23]

L1
23.9 [0.941]
22.9 [0.902]
23.9 [0.941]
22.9 [0.902]
25.3 [0.996]
24.7 [0.972]

23.9 [0.941]
22.9 [0.902]
23.9 [0.941]
22.9 [0.902]
25.3 [0.996]
24.7 [0.972]

8 [0.31]

max. 76 [2.99]

14.0 [0.551]
13.0 [0.512]

C

14.0 [0.551]
13.0 [0.512]

L2
14.0 [0.551]
13.0 [0.512]
24.6 [0.969]
23.4 [0.921]
14.0 [0.551]
13.0 [0.512]

L

20 [0.79]

R1 [0.04]

22 [0.87]
35 [1.38]

28 [1.10]

max. 77 [3.03]

max. 81 [3.19]

58 [2.28]

E

120 [4.72]
max. 149 [5.87]

Ø6 [0.24]

20

.Ø

ax

m
7
28 [1.10]

5]

.1

[8
Ø180
Ø179 .4 [7.102.6 [7.0 ]71]

151-900.11

C:

Drain connection G 1⁄4; 12 mm [0.47 in] deepD:

M12; 12 mm [0.47 in] deepE:

G 1; 18 mm [0.71 in] deep56 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
Type
LMax.

mm [in]OMV 315OMV 400

OMV 500

OMV 630

OMV 800

173 [6.81]

180 [7.09]

188 [7.40]

199 [7.83]

213 [8.39]L1*mm [in]22.0 [0.866]

29.0 [1.142]

37.0 [1.457]

47.5 [1.870]

61.5 [2.421]

L2mm [in]117 [4.61]

124 [4.88]

132 [5.20]

143 [5.63]

157 [6.18]

Weightkg [lb]22.7 [50.1]

23.5 [78.3]

24.4 [53.8]

25.6 [56.4]

27.2 [61.1]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

OMV dimensions - US version© Danfoss | September 2021

BC152886483862en-000801 | 57

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
OMV standard flange - US version
Ø160.000 [6.2992]
Ø159.937 [6.2967]

39.4 [1.551]
38.6 [1.520]

R1.6 [0.063]
20 [0.79]

L2

77 [3.03]

C

69 [2.72]

D

max. 76 [2.99]

L1

L
24.6 [0.969]
23.4 [0.921]

2 [0.08]x45˚

11 [0.43]

33˚
60 [2.36]

40 [1.57]

L3

Ø146.3 [5.760]
Ø145.7 [5.736]
Ø90 [3.54]
Ø88 [3.46]

25.3 [0.996]
24.7 [0.972]

25.3 [0.996]
24.7 [0.972]

max. 77 [3.03]

max. 83 [3.27]

0]89 ][7. 58.4 [7.8
00 6
Ø2 199.
ØR16 [0.63]

max. 181.3 [7.14]

120 [4.72]
max. 149 [5.87]

Ø18 [0.71]
max. 181.3 [7.14]

151-890.12.22

C:

Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D:

1 5⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

58 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
Type
LMax.

mm [in]OMV 315OMV 400

OMV 500

OMV 630

OMV 800

216 [8.50]

223 [8.78]

231 [9.09]

242 [9.53]

256 [10.08]

L1*

mm [in]22.0 [0.866]

29.0 [1.142]

37.0 [1.457]

47.5 [1.870]

61.5 [2.421]

L2mm [in]160 [6.30]

167 [6.57]

175 [6.89]

186 [7.32]

200 [7.87]

Weightkg [lb]31.8 [70.1]

32.6 [71.9]

33.5 [73.9]

34.9 [76.9]

36.5 [80.5]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

Output shaft

Cyl. 2.25 in Splined 2.125 inTapered 2.25 inL3

82 [3.23]

100 [3.94]mm [in]BC152886483862en-000801 | 59

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
OMV SAE-C flange - US version

85.5 [3.366]

13.8 [0.543]
13.2 [0.520]
21.0 [0.827]
19.6 [0.772]

16.1 [0.634]
13.7 [0.539]

L3

Ø127.00 [5.000]
Ø126.95 [4.998]

L2

C

71.0 [2.795]

max. 76 [2.99]

24.0 [0.945]

L1

L

81.5 [3.209]

D

25 [0.98]

25 [0.98]

max. 77 [3.03]

max. 83 [3.27]

max. 121 [4.76]
R16 [0.63]

0]39[6. .358]
3.
62 [6Ø1 61.5
Ø1

max. 147 [5.79]

max. 149 [5.87]

Ø17.7 [0.697]
Ø17.3 [0.681]
max. 147 [5.79]

151-1485.11

C:

Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D:

1 5⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

60 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
Type
LMax.

mm [in]OMV 315OMV 400

OMV 500

OMV 630

OMV 800

240 [9.45]

247 [9.72]

255 [10.04]

266 [10.47]

280 [11.02]

L1*mm [in]22.0 [0.866]

29.0 [1.142]

37.0 [1.457]

47.5 [1.870]

61.5 [2.421]

L2mm [in]185 [7.28]

192 [7.56]

200 [7.87]

211 [8.31]

225 [8.86]

Weightkg [lb]30.0 [66.2]

30.8 [67.9]

31.7 [69.9]

33.1 [73.0]

34.7 [76.5]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

Output shaft

Cyl. 2.25 in

Splined 2.125 inL3

99 [3.90]

76.7 [3.02]mm [in]BC152886483862en-000801 | 61

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
OMV wheel - US version

Ø148.0 [5.827]
Ø147.9 [5.823]

max. 107.7 [4.240]

R1.2 [0.047]
max. 76 [2.99]
25.3 [0.996]
24.7 [0.972]

max. 77 [3.03]
85 [3.35]

25.3 [0.996]
24.7 [0.972]
120 [4.72]
max. 149 [5.87]
Ø194.000 [7.6378]
Ø193.928 [7.6350]

max. 83 [3.27]

D

1]
83 ]
[8. .807
3.
24 [8Ø2 223.7
Ø

R16 [0.63]

max. 200 [7.87]

24.6 [0.969]
23.4 [0.921]

8 [0.31]R1.2 [0.047]

22 [0.87]

L1

3.6 [0.142]

C

L

L2

20 [0.79]

10 [0.39]

108 [4.25]
79 [3.11]

33˚

2 [0.08]x45˚

100.4 [3.953]
99.6 [3.921]

Ø180.000 [7.0866]Ø179.937 [7.0841]
Ø146.3 [5.760]
Ø145.7 [5.736]
Ø90 [3.54]
Ø88 [3.46]

Ø18 [0.71]
max. 200 [7.87]

151-899.12.22

C:

Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D:

1 5⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

62 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMV dimensions
Type
LMax.

mm [in]OMV 315OMV 400

OMV 500

OMV 630

OMV 800

148 [5.83]

155 [6.10]

163 [6.42]

174 [6.85]

188 [7.40]L1*mm [in]22.0 [0.866]

29.0 [1.142]

37.0 [1.457]

47.5 [1.870]

61.5 [2.421]

L2mm [in]92 [3.62]

99 [3.90]

107 [4.21]

118 [4.65]

132 [5.20]

Weightkg [lb]32.4 [71.4]

33.2 [73.2]

34.1 [35.5]

35.5 [78.3]

37.1 [81.8]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions© Danfoss | September 2021

BC152886483862en-000801 | 63

Technical Information
OMT and OMV Orbital Motors
OMVS

Installing the OMVS
The cardan shaft of the OMVS motor acts as an “output shaft”. Because of the movement of the shaft, noseal can be fitted at the shaft output.
Internal oil leakage from the motor will therefore flow into the attached component.
During start and operation it is important that the spline connection and the bearings in the attachedcomponent receive oil and are adequately lubricated. To ensure that the spline connection receives
sufficient oil, a conical sealing ring between the shaft of the attached component and the motor
intermediate plate is recommended. This method is used in the OMV.
The conical sealing ring (code. no. 633B9021) is supplied with the motor.
To ensure that oil runs to the bearings and other parts of the attached component, the stop plate musthave a hole in it (see fig. below).
We recommend an O-ring between motor and attached component. The O-ring (code no. 151B1041) is
supplied with the motor. If motor and attached component have been separated, remember to refill
before starting up. Fill the oil through the drain connection.
Attached component dimensions for OMVSOMVS dimensions of the attached component in millimeter [inches]
2.35 [0.093]
2.25 [0.089]

AC

max. 2 [0.08]

32.5 [1.280]
31.5 [1.240]

min. 5 [0.2]
9.5 [0.374]
8.5 [0.335]
53.3 [1.098]
52.7 [2.075]

Ø71 [2.80]
Ø69 [2.72]

Ø61.2 [2.409]
Ø61.0 [2.402]

6 [0.24]
R 4 [0.16]
Ø102 [4.02]
Ø100 [3.94]

Ø147.9 [5.823]
Ø147.7 [5.815]

Ø56.3 [2.217]
Ø55.5 [2.165]

GH

Ø46.2 [1.819]
Ø45.8 [1.803]

KB
Ø140.063 [5.5143]
Ø140.000 [5.5118]

K 0.25 [0.010]
K 0.1˚min. Ø60 [2.36]

min. Ø6 [0.24]

FDE
8.4 [0.331]
7.6 [0.299]

20.5 [0.807]
19.5 [0.768]
28.7 [1.130]
26.3 [1.035]

76.3 [3.004]
75.7 [2.980]
151-815.11

A:

O-ring: 140 × 3 mm

B:

External drain channel

C:

Drain connection G 1⁄4; 12 mm [0.47 in] deepD:

Conical seal ring

E:

Internal drain channel

F:

M12; minimum 18 mm [0.71 in] deepG:

Oil circulation holeH:

Hardened stop plate64 | © Danfoss | September 2021

BC152886483862en-000801

Technical Information
OMT and OMV Orbital Motors
OMVS
Attached component internal splines for OMVS
The attached component must have internal splines corresponding to the external splines on the motor
cardan shaft (see the following drawing).
Material
Case hardening steel with a tensile strength corresponding at least to 20 MoCr4 (900 N/mm2) or SAE
8620.
Hardening specification••

On the surface: HV = 750 ± 50
0.7 ± 0.2 mm under the surface: HV = 560

Internal involute spline data; Standard ANS B92.1-1996, class 5 (corrected m · X = 1; m = 2.54)
Flat root side fitmmNumber of teeth

z

Pitch

DP

Pressure angle

[in]

16
10/20
30°

Pitch diameter

D

40.640[1.6]

Major diameterDri

45.20+0.4[1.7800+0.016]

Form diameter (minimum)

Dfi

44.6

[1.756]

Di

38.50+ 0.039[1.5160+ 0.0015]

Space width (circular)Lo

5.180 ±0.037[0.204 ±0.0015]

Tooth thickness (circular)

So

2.835

[0.1116]

Minor diameter

Fillet radius

Rmin.

0.4

[0.015]

Maximum measurement between pins*

l32.470+ 0.15

[1.2780+0.006]

Pin diameterd

5.6 ±0.001[0.22 ±0.00004]* Finished dimensions (when hardened)

Rmin
Lo
So
Dri
l

d

Di
Dfi
D
151-816.10

Motor or attached component drain connection
Use the drain line when pressure in the return line exceeds the permissible pressure on the shaft seal of
the attached component.
Connect the drain line either at the:• Motor drain connection• Drain connection of the attached component
If a drain line is fitted to the attached component, it must be possible for oil to flow freely between motor
and attached component.
© Danfoss | September 2021

BC152886483862en-000801 | 65

Technical Information
OMT and OMV Orbital Motors
OMVS
The drain line must be led to the tank in such a way that there is no risk of the motor and attachedcomponent being drained of oil when at rest.
The maximum pressure in the drain line is limited by the attached component and its shaft seal.

66 | © Danfoss | September 2021

BC152886483862en-000801

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© Danfoss | September 2021

BC152886483862en-000801