SAI has a range of custom made gearboxes that have been specifically designed to suit and be coupled to the SAI range of Radial Piston Hydraulic Motors.
These high efficiency units offers great compactness and flexibitity and the gearboxes can be lubricated by the same hydraulic oil that lubricates the motor crankcase. By fitting single, dual or variable motors to these gearboxes, drives can therefore have fixed, dual or variable effective displacements (motor displacement x gearbox ratio).
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| SERIES | IMAGE | Reduction Ratio | Continuous Torque Ratio | Peak Torque Rating | INFORMATION | |
|---|---|---|---|---|---|---|
R04 |  | 5.77:1 | 1350 Nm | 2700 Nm | Fits to Motor Series 05 and can be fitted with the F5 spring applied, hydraulic pressure released brake. | |
R13 |  | 7:1 | 3500 Nm | 7000 Nm | Fits to Motor Series 05, 1 and 2 and can be fitted with the F10 spring applied, hydraulic pressure released brake. | |
R07 |  | 4:1 | 5000 Nm | 7000 Nm | Fits to Motor Series 2 and 3. | |
R21 |  | 5.6:1 | 9500 Nm | 19000 Nm | Fits to Motor Series 2 and 3. | |
R20RFA | | 5.6:1 | 9500 Nm | 19000 Nm | Fits to Motor Series 2 and 3. Complete with spring applied, hydraulic pressure released brake. | |
R23 |  | 5.6:1 | 9500 Nm | 19000 Nm | Fits to Motor Series 3, 4 and 5. | |
R22FA |  | 5.6:1 | 9500 Nm | 19000 Nm | Fits to Motor Series 3, 4 and 5. Complete with spring applied, hydraulic pressure released brake. | |
R24 |  | 6.2:1 | 9500 Nm | 18000 Nm | Fits to Motor Series 2 and 3. | |
R28 |  | 4.41:1 | 14000 Nm | 28000 Nm | Fits to Motor Series 4 and 5. | |
TS8 |  | 6:1 | 35000 Nm | 43000 Nm | Compact Drive Unit utilising the internal components from the 3.5 Series Motor giving effective dislacements from 2700 cc/rev through to 7400 cc/rev. | |
TS8F | | 6:1 | 35000 Nm | 43000 Nm | Compact Drive Unit with integral brake utilising the internal components from the 3.5 Series Motor giving effective dislacements from 2700 cc/rev through to 7400 cc/rev. | |
