Back to products
Muscular and Modular

Gear Boxes

Twin Disc gearboxes include the following design features:

• Reduction & increaser gear ratios on outputs
• Cast iron housings
• Shaved helical gears
• Case hardened shafts
• Output rotation options
• Modular design

Engineered to withstand the most rigorous applications on Earth. The modular design features clutchable input, housing with drive plate or stand-alone shaft input. Options include reduction and increaser gear ratios on outputs, as well as output rotation options.

RM150S

Housing Size

1,2,3

Flywheel Size

11.5", 14.0"

Max Torque Nm(lb-ft)

up to 950(704)

Ratio

:1 to 2.70

Max Speed (rpm)

2500

RM150D

Housing Size

1,2,3

Flywheel Size

11.5", 14.0"

Max Torque Nm(lb-ft)

up to 1500(1111)

Ratio

:1 to 3.04

Max Speed (rpm)

2000/2500

RM120S

Housing Size

1,2,3,4

Flywheel Size

11.5"

Max Torque Nm(lb-ft)

up to 830(615)

Ratio

:1 to 3.00

Max Speed (rpm)

2000/2500

RM120D

Housing Size

1,2,3,4

Flywheel Size

11.5"

Max Torque Nm(lb-ft)

up to 1000(741)

Ratio

:1 to 3.55

Max Speed (rpm)

2000/2500

RM100S

Housing Size

3,4

Flywheel Size

10.0",11.5"

Max Torque Nm(lb-ft)

up to 400(296)

Ratio

:1 to 4.21

Max Speed (rpm)

2000/2700/3000

RM100D

Housing Size

3,4

Flywheel Size

10.0", 11.5"

Max Torque Nm(lb-ft)

up to 400(296)

Ratio

:1 to 5.00

Max Speed (rpm)

2400/2500/3000

RM70S

Housing Size

3,4

Flywheel Size

10.0"

Max Torque Nm(lb-ft)

up to 280(207)

Ratio

:1 to 3.25

Max Speed (rpm)

up to 3200

RM45S

Housing Size

4,5

Flywheel Size

6.5", 7.5", 8.0"

Max Torque Nm(lb-ft)

up to 161(119)

Ratio

:1 to 4.09

Max Speed (rpm)

2700/3500

RM70D

Housing Size

3,4

Flywheel Size

10.0"

Max Torque Nm(lb-ft)

up to 290(215)

Ratio

:1 to 3.75

Max Speed (rpm)

2500/3200

RM45D

Housing Size

4,5

Flywheel Size

6.5",7.5",8.0"

Max Torque Nm(lb-ft)

up to 165(122)

Ratio

:1 to 5.00

Max Speed (rpm)

2800/3500

RM20S

Housing Size

4,5

Flywheel Size

6.5",7.5"

Max Torque Nm(lb-ft)

up to 75(56)

Ratio

:1 to 2.47

Max Speed (rpm)

2800/3500

RM20D

Housing Size

4,5

Flywheel Size

6.5",7.5"

Max Torque Nm(lb-ft)

up to 75(56)

Ratio

:1 to 2.71

Max Speed (rpm)

2700/3500

for Reverse Direction as Engine Output

RM45D

Technical Data

Ratio
(X :1)

Part Number

Configuration

Max. Input Torque
Nm (lb-ft)

Max. Power Allowed
Without H.E.
kW (hp)

Maximum
Input Shaft
Speed

SAE
Housing

Flywheel
Size

0.67

ITR12311009

Housing

165 (122)

30 (40)

2800

5

6.5″

1.00

ITR12311005

Housing

161 (119)

30 (40)

3500

5

6.5″

2.00

ITR12311006

Housing

121 (89)

30 (40)

3500

5

6.5″

2.88

ITR12311007

Housing

100 (74)

30 (40)

3500

5

6.5″

3.40

ITR12311012

Housing

80 (59)

30 (40)

3500

5

6.5″

4.00

ITR12311010

Housing

80 (59)

30 (40)

3500

5

6.5″

5.00

ITR12311008

Housing

71 (52)

30 (40)

3500

5

6.5″

0.67

ITR12321009

Housing

165 (122)

30 (40)

2800

5

7.5″

1.00

ITR12321005

Housing

161 (119)

30 (40)

3500

5

7.5″

2.00

ITR12321006

Housing

121 (89)

30 (40)

3500

5

7.5″

2.88

ITR12321007

Housing

100 (74)

30 (40)

3500

5

7.5″

3.40

ITR12321012

Housing

80 (59)

30 (40)

3500

5

7.5″

4.00

ITR12321010

Housing

80 (59)

30 (40)

3500

5

7.5″

5.00

ITR12321008

Housing

71 (52)

30 (40)

3500

5

7.5″

0.67

ITR12322009

Housing

165 (122)

30 (40)

2800

4

7.5″

1.00

ITR12322005

Housing

161 (119)

30 (40)

3500

4

7.5″

2.00

ITR12322006

Housing

121 (89)

30 (40)

3500

4

7.5″

2.88

ITR12322007

Housing

100 (74)

30 (40)

3500

4

7.5″

3.40

ITR12322012

Housing

80 (59)

30 (40)

3500

4

7.5″

4.00

ITR12322010

Housing

80 (59)

30 (40)

3500

4

7.5″

5.00

ITR12322008

Housing

71 (52)

30 (40)

3500

4

7.5″

0.67

ITR12332009

Housing

165 (122)

30 (40)

2800

4

8.0″

1.00

ITR12332005

Housing

161 (119)

30 (40)

3500

4

8.0″

2.00

ITR12332006

Housing

121 (89)

30 (40)

3500

4

8.0″

2.88

ITR12332007

Housing

100 (74)

30 (40)

3500

4

8.0″

3.40

ITR12332012

Housing

80 (59)

30 (40)

3500

4

8.0″

4.00

ITR12332010

Housing

80 (59)

30 (40)

3500

4

8.0″

5.00

ITR12332008

Housing

71 (52)

30 (40)

3500

4

8.0″

0.67

ITR12111009

with BD110 PTO

165 (122)

30 (40)

2800

5

6.5″

1.00

ITR12111005

with BD110 PTO

161 (119)

30 (40)

3500

5

6.5″

2.00

ITR12111006

with BD110 PTO

121 (89)

30 (40)

3500

5

6.5″

2.88

ITR12111007

with BD110 PTO

100 (74)

30 (40)

3500

5

6.5″

3.40

ITR12111012

with BD110 PTO

80 (59)

30 (40)

3500

5

6.5″

4.00

ITR12111010

with BD110 PTO

80 (59)

30 (40)

3500

5

6.5″

5.00

ITR12111008

with BD110 PTO

71 (52)

30 (40)

3500

5

6.5″

0.67

ITR12111109

with BD110 PTO

165 (122)

30 (40)

2800

5

7.5″

1.00

ITR12111105

with BD110 PTO

161 (119)

30 (40)

3500

5

7.5″

2.00

ITR12111106

with BD110 PTO

121 (89)

30 (40)

3500

5

7.5″

2.88

ITR12111107

with BD110 PTO

100 (74)

30 (40)

3500

5

7.5″

3.40

ITR12111112

with BD110 PTO

80 (59)

30 (40)

3500

5

7.5″

4.00

ITR12111110

with BD110 PTO

80 (59)

30 (40)

3500

5

7.5″

5.00

ITR12111108

with BD110 PTO

71 (52)

30 (40)

3500

5

7.5″

0.67

ITR12122109

with BD112 PTO

165 (122)

30 (40)

2800

4

7.5″

1.00

ITR12122105

with BD112 PTO

161 (119)

30 (40)

3500

4

7.5″

2.00

ITR12122106

with BD112 PTO

121 (89)

30 (40)

3500

4

7.5″

2.88

ITR12122107

with BD112 PTO

100 (74)

30 (40)

3500

4

7.5″

3.40

ITR12122112

with BD112 PTO

80 (59)

30 (40)

3500

4

7.5″

4.00

ITR12122110

with BD112 PTO

80 (59)

30 (40)

3500

4

7.5″

5.00

ITR12122108

with BD112 PTO

71 (52)

30 (40)

3500

4

7.5″

0.67

ITR12122009

with BD112 PTO

165 (122)

30 (40)

2800

4

8.0″

1.00

ITR12122005

with BD112 PTO

161 (119)

30 (40)

3500

4

8.0″

2.00

ITR12122006

with BD112 PTO

121 (89)

30 (40)

3500

4

8.0″

2.88

ITR12122007

with BD112 PTO

100 (74)

30 (40)

3500

4

8.0″

3.40

ITR12122012

with BD112 PTO

80 (59)

30 (40)

3500

4

8.0″

4.00

ITR12122010

with BD112 PTO

80 (59)

30 (40)

3500

4

8.0″

5.00

ITR12122008

with BD112 PTO

71 (52)

30 (40)

3500

4

8.0″

0.67

ITR12132009

with BD118 PTO

165 (122)

30 (40)

2800

4

8.0″

1.00

ITR12132005

with BD118 PTO

161 (119)

30 (40)

3500

4

8.0″

2.00

ITR12132006

with BD118 PTO

121 (89)

30 (40)

3500

4

8.0″

2.88

ITR12132007

with BD118 PTO

100 (74)

30 (40)

3500

4

8.0″

3.40

ITR12132012

with BD118 PTO

80 (59)

30 (40)

3500

4

8.0″

4.00

ITR12132010

with BD118 PTO

80 (59)

30 (40)

3500

4

8.0″

5.00

ITR12132008

with BD118 PTO

71 (52)

30 (40)

3500

4

8.0″

0.67

ITR12230009

with BDS118
Remote PTO

165 (122)

30 (40)

2800

N/A

N/A

1.00

ITR12230005

with BDS118
Remote PTO

75 (56)

15 (20)

3500

N/A

N/A

2.00

ITR12230006

with BDS118
Remote PTO

121 (89)

30 (40)

3500

N/A

N/A

2.88

ITR12230007

with BDS118
Remote PTO

100 (74)

30 (40)

3500

N/A

N/A

3.40

ITR12230012

with BDS118
Remote PTO

80 (59)

30 (40)

3500

N/A

N/A

4.00

ITR12230010

with BDS118
Remote PTO

80 (59)

30 (40)

3500

N/A

N/A

5.00

ITR12230008

with BDS118
Remote PTO

71 (52)

30 (40)

3500

N/A

N/A

Dimensional Data
Enlarge

A

B

C

D

E

F

G

H

RM20

301.0 (11.85)

64.5 (2.54)

67.5 (2.66)

192.0 (7.56)

67.5 (2.66)

107.0 (4.21)

50.0 (1.97)

157.0 (6.18)

RM45

375.0 (14.76)

68.5 (2.70)

88.5 (3.48)

233.0 (9.17)

88.5 (3.48)

131.0 (5.16)

70.0 (2.76)

201.0 (7.91)

RM70

443.0 (17.44)

68.5 (2.70)

121.5 (4.78)

283.0 (11.14)

121.5 (4.78)

142.0 (5.59)

80.0 (3.15)

222.0 (8.74)

RM100

459.0 (18.07)

68.5 (2.70)

135.0 (5.31)

311.0 (12.24)

135.0 (5.31)

172.0 (6.77)

120.0 (4.72)

292.0 (11.50)

RM120

545.0 (21.46)

68.5 (2.70)

160.0 (6.30)

378.0 (14.88)

160.0 (6.30)

200.0 (7.87)

140.0 (5.51)

340.0 (13.39)

RM150

613.0 (24.13)

68.5 (2.70)

189.0 (7.44)

419.0 (16.50)

189.0 (7.44)

262.0 (10.31)

140.0 (5.51)

402.0 (15.83)

mm (in)

Loading
Locate SALES AND SERVICE

AROUND THE GLOBE

Trained experts and original parts available from 250 distributor sales and service locations in 83 countries.

LOCATE

BACK TO FILTERS COLLAPSE RESULTS

No distributors match the requested criteria, please widen your search.

HAVE A NEED FOR OUR PRODUCTS AND SERVICES?

PUT THE POWER OF TWIN DISC TO WORK FOR YOU

Looking for a power transmission technology solution for your specific application? Twin Disc is more than ready to put horsepower to work for you.

I'D LIKE TO CONNECT