Servo Motor Model Number Guide
Use this guide to read TorqueBank servo motor model codes and identify the main configuration behind each model number, including frame size, series, motor type, encoder, rated torque, speed, voltage class, brake and fan options. The model code provides a configuration reference. Final selection should be checked against the datasheet, drawing and application requirements.
Example Model Code Breakdown
The example below shows how a TorqueBank servo motor model number can be divided into code positions. Each position represents one configuration item, such as frame size, series, motor type, encoder, torque, speed, voltage class, brake or fan option.
| No. | Code | Meaning |
|---|---|---|
| ① | 180 | 180 mm flange |
| ② | A6 | A6 series |
| ③ | ST | Sine-wave servo motor |
| ④ | - | Separator mark |
| ⑤ | M | Incremental optical encoder |
| ⑥ | 480 | 48 N·m rated torque |
| ⑦ | 15 | 1500 rpm rated speed |
| ⑧ | LB | 250 V class |
| ⑨ | Z | With brake |
| ⑩ | F | With fan |
Model Code Lookup Tables
Use the tables below to check the meaning of each numbered code position. Available combinations may vary depending on frame size, torque, speed, encoder type, brake, fan cooling, cable outlet and matched drive requirements.
① Frame Size
| Code | Meaning |
|---|---|
| 60 | 60 mm flange |
| 80 | 80 mm flange |
| 130 | 130 mm flange |
| 180 | 180 mm flange |
② Series
| Code | Meaning |
|---|---|
| A5 | A5 series |
| A6 | A6 series |
| X6 | X6 series |
| H6 | H6 series |
| Omitted | Standard series |
③ Motor Type
| Code | Meaning |
|---|---|
| ST | Sine-wave servo motor |
④ Separator Mark
| Code | Meaning |
|---|---|
| - | Separator mark |
⑤ Encoder Options
| Code | Meaning |
|---|---|
| M | Incremental optical encoder |
| C | Incremental magnetic encoder |
| S | Reduced-wiring encoder |
| J | 17-bit optical absolute encoder |
| J2 | 23-bit optical absolute encoder |
| JC | 17-bit magnetic absolute encoder |
| X | Resolver feedback |
⑥ Rated Torque
| Code | Meaning |
|---|---|
| 024 | 2.4 N·m |
| 040 | 4 N·m |
| 100 | 10 N·m |
| 480 | 48 N·m |
| 955 | 95.5 N·m |
| A20 | 120 N·m |
| B50 | 250 N·m |
⑦ Rated Speed
| Code | Meaning |
|---|---|
| 10 | 1000 rpm |
| 15 | 1500 rpm |
| 20 | 2000 rpm |
| 25 | 2500 rpm |
| 30 | 3000 rpm |
⑧ Voltage Class
| Code | Meaning |
|---|---|
| LB | 250 V class |
| HB | 380 V class |
⑨ Brake Option
| Code | Meaning |
|---|---|
| Z | With brake |
| Omitted | Without brake |
⑩ Fan Option
| Code | Meaning |
|---|---|
| F | With fan |
| Omitted | Without fan |
Model Code Notes
Not every code combination is available as a standard model. Some configurations may require confirmation based on motor frame, rated torque, speed, encoder type, brake, fan cooling, cable outlet and matched drive requirements.
Need Help Decoding a Model Number?
Send us the model code, application voltage, speed, torque requirement and drive interface. We can help check the closest standard model or confirm whether a customized configuration is required.