The Twin Disc RM20 series is a gearbox product with speed reduction and speed increasing ratios comprising of the RM20S & RM20D models.
The “S” & “D” in the model number refers to the rotation of the output shaft.
- S = rotation is the same as the engine
- D = rotation is anti-engine
The Twin Disc RM series gearboxes are compact, yet heavy duty gearboxes built for industrial application to mount with industrial diesel engines or electric motors. The Twin Disc RM gearboxes are a very economical option for an array of industrial off-highway applications including water pumps, slurry pumps, fans, blowers, cement mixers, and more.
One of the best features of these gearboxes are their modular design built to be flexible and configurable for the widest range of industrial applications. Each series has the option for the output shaft to turn engine or ant-engine direct. There are an array of engine connection options including drive plate/coupling mounted, and clutch mounted to an industrial SAE engine.
The RM20 series is offered in ratios ranging from 0.57:1 increasing to a 2.71:1 reduction ratio and is rated for up to 56 lb-ft of input torque.
Whether you're working on a new application and need help selecting the right Twin Disc RM20 gearbox, or you need support for an existing unit in your equipment, our experts are here to help. Get in touch with the gearbox experts today!
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Models:
RM20D
| Ratio (X :1) | Part Number | Configuration | Max. Input Torque Nm (lb-ft) | Max. Power Allowed Without Heat Exchanger kW (hp) | Maximum Input Shaft Speed | SAE Housing | Flywheel Size |
|---|---|---|---|---|---|---|---|
| 0.57 | ITR11311004 | Housing | 75 (56) | 15 (20) | 2700 | 5 | 6.5″ |
| 1 | ITR11311005 | Housing | 75 (56) | 15 (20) | 3500 | 5 | 6.5″ |
| 2 | ITR11311006 | Housing | 55 (41) | 15 (20) | 3500 | 5 | 6.5″ |
| 2.71 | ITR11311007 | Housing | 50 (37) | 15 (20) | 3500 | 5 | 6.5″ |
| 0.57 | ITR11321004 | Housing | 75 (56) | 15 (20) | 2700 | 5 | 7.5″ |
| 1 | ITR11321005 | Housing | 75 (56) | 15 (20) | 3500 | 5 | 7.5″ |
| 2 | ITR11321006 | Housing | 55 (41) | 15 (20) | 3500 | 5 | 7.5″ |
| 2.71 | ITR11321007 | Housing | 50 (37) | 15 (20) | 3500 | 5 | 7.5″ |
| 0.57 | ITR11111004 | with BD110 PTO | 75 (56) | 15 (20) | 2700 | 5 | 6.5″ |
| 1 | ITR11111005 | with BD110 PTO | 75 (56) | 15 (20) | 3500 | 5 | 6.5″ |
| 2 | ITR11111006 | with BD110 PTO | 55 (41) | 15 (20) | 3500 | 5 | 6.5″ |
| 2.71 | ITR11111007 | with BD110 PTO | 50 (37) | 15 (20) | 3500 | 5 | 6.5″ |
| 0.57 | ITR11111104 | with BD110 PTO | 75 (56) | 15 (20) | 2700 | 5 | 7.5″ |
| 1 | ITR11111105 | with BD110 PTO | 75 (56) | 15 (20) | 3500 | 5 | 7.5″ |
| 2 | ITR11111106 | with BD110 PTO | 55 (41) | 15 (20) | 3500 | 5 | 7.5″ |
| 2.71 | ITR11111107 | with BD110 PTO | 50 (37) | 15 (20) | 3500 | 5 | 7.5″ |
| 0.57 | ITR11122004 | with BD112 PTO | 75 (56) | 15 (20) | 2700 | 4 | 7.5″ |
| 1 | ITR11122005 | with BD112 PTO | 75 (56) | 15 (20) | 3500 | 4 | 7.5″ |
| 2 | ITR11122006 | with BD112 PTO | 55 (41) | 15 (20) | 3500 | 4 | 7.5″ |
| 2.71 | ITR11122007 | with BD112 PTO | 50 (37) | 15 (20) | 3500 | 4 | 7.5″ |
| 0.57 | ITR11220004 | with BDS112 Remote PTO | 75 (56) | 15 (20) | 2700 | N/A | N/A |
| 1 | ITR11220005 | with BDS112 Remote PTO | 75 (56) | 15 (20) | 3500 | N/A | N/A |
| 2 | ITR11220006 | with BDS112 Remote PTO | 55 (41) | 15 (20) | 3500 | N/A | N/A |
| 2.71 | ITR11220007 | with BDS112 Remote PTO | 50 (37) | 15 (20) | 3500 | N/A | N/A |
RM20S
| Ratio (X :1) | Part Number | Configuration | Max. Input Torque Nm (lb-ft) | Max. Power Allowed Without Heat Exchanger kW (hp) | Maximum Input Shaft Speed | SAE Housing | Flywheel Size |
|---|---|---|---|---|---|---|---|
| 0.64 | ITR11311003 | Housing | 75 (56) | 12 (16) | 2800 | 5 | 6.5″ |
| 1.89 | ITR11311001 | Housing | 55 (41) | 12 (16) | 3500 | 5 | 6.5″ |
| 2.47 | ITR11311002 | Housing | 50 (37) | 12 (16) | 3500 | 5 | 6.5″ |
| 0.64 | ITR11321003 | Housing | 75 (56) | 12 (16) | 2800 | 5 | 7.5″ |
| 1.89 | ITR11321001 | Housing | 55 (41) | 12 (16) | 3500 | 5 | 7.5″ |
| 2.47 | ITR11321002 | Housing | 50 (37) | 12 (16) | 3500 | 5 | 7.5″ |
| 0.64 | ITR11111003 | with BD110 PTO | 75 (56) | 12 (16) | 2800 | 5 | 6.5″ |
| 1.89 | ITR11111001 | with BD110 PTO | 55 (41) | 12 (16) | 3500 | 5 | 6.5″ |
| 2.47 | ITR11111002 | with BD110 PTO | 50 (37) | 12 (16) | 3500 | 5 | 6.5″ |
| 0.64 | ITR11111103 | with BD110 PTO | 75 (56) | 12 (16) | 2800 | 5 | 7.5″ |
| 1.89 | ITR11111101 | with BD110 PTO | 55 (41) | 12 (16) | 3500 | 5 | 7.5″ |
| 2.47 | ITR11111102 | with BD110 PTO | 50 (37) | 12 (16) | 3500 | 5 | 7.5″ |
| 0.64 | ITR11122003 | with BD112 PTO | 75 (56) | 12 (16) | 2800 | 4 | 7.5″ |
| 1.89 | ITR11122001 | with BD112 PTO | 55 (41) | 12 (16) | 3500 | 4 | 7.5″ |
| 2.47 | ITR11122002 | with BD112 PTO | 50 (37) | 12 (16) | 3500 | 4 | 7.5″ |
| 0.64 | ITR11220003 | with BDS112 Remote PTO | 75 (56) | 12 (16) | 2800 | N/A | N/A |
| 1.89 | ITR11220001 | with BDS112 Remote PTO | 55 (41) | 12 (16) | 3500 | N/A | N/A |
| 2.47 | ITR11220002 | with BDS112 Remote PTO | 50 (37) | 12 (16) | 3500 | N/A | N/A |