Complaint
| Gear box length L (mm) | Number Of Stage | General Reduction Ratios | |
| 16 | 3-4 | 1/12.5 | 1/31.3 |
| 17.5 | 5 | 1/78.1 | - |
| 19 | 6 | 1/195 | - |
| 20.5 | 7 | 1/488 | - |
| Ratio | Model No. | Voltage | No Load | On Load | ||||
| Operating Range | Nominal Voltage | Current | Speed | Current | Torque | Speed | ||
| V | V | A | r/min | A | kg.cm | r/min | ||
| 1/12.5 | BS-20A130F-12.5-06652 | 6.0-12.0 | 6 | 0.068 | 652 | 0.235 | 0.1 | 548 |
| 1/31.3 | BS-20A130F-31.3-24497 | 6.0-24.0 | 24 | 0.051 | 497 | 0.198 | 0.6 | 418 |
| 1/78.1 | BS-20A130F-78-06104 | 6.0-8.0 | 6 | 0.071 | 104 | 0.25 | 0.8 | 87 |
| 1/195 | BS-20A130F-195-1261 | 6.0-12.0 | 12 | 0.092 | 61 | 0.25 | 2.5 | 49.3 |
| 1/488 | BS-20A130F-488-0318 | 1.5-3.0 | 3 | 0.138 | 18 | 0.42 | 2 | 15 |
