®S Series Helical-Worm Gear Unit Specifications
This page summarizes the cleaned model-level capability envelope for the CHINFAR S Series. Use it to narrow the size range; use the detailed selection data to choose a final configuration.
| Item | S Series |
|---|---|
| Gear unit type | Helical-Worm Gear Unit |
| Shaft arrangement | Right Angle |
| Size range | S37–S97 |
| Reference power range | 0.12–22 kW |
| Reference ratio range | 7.75–307.88 |
| Reference maximum torque range | 92–4000 Nm |
Engineering note: published ranges describe the cleaned reference envelope of the series. The final selectable power, ratio, torque, motor interface and mounting arrangement depend on the exact configuration.
Model capability table
| Model | Power range (kW) | Ratio range | Reference maximum torque (Nm) |
|---|---|---|---|
| S37 | 0.12–0.75 | 10.27–157.43 | 92 |
| S47 | 0.12–1.5 | 8.25–201 | 170 |
| S57 | 0.18–3 | 8–201 | 295 |
| S67 | 0.25–5.5 | 7.75–217.41 | 520 |
| S77 | 0.55–7.5 | 12.1–256.47 | 1270 |
| S87 | 0.75–15 | 11.13–302.4 | 2280 |
| S97 | 1.5–22 | 12.04–307.88 | 4000 |
How to read this table
Power range shows the reference input/motor power envelope associated with the size. Ratio range describes the available reduction range represented in the cleaned source data. Reference maximum torque is a size-level maximum and must not be treated as the continuous rated torque for every ratio and motor combination.
For final selection, use a performance row that matches the actual power, pole count/input speed, ratio, output speed, output torque and service factor.
Related technical pages
- Return to the S Series product page
- How to select the S Series
- Mounting and installation
Related resources
Need a gearbox configuration for your machine?
Send the required motor power, input speed, target output speed or ratio, expected output torque, mounting arrangement, and any installation drawing available. CHINFAR can use these inputs to narrow the R/F/K/S configuration before final engineering confirmation.
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