PGH52 4:1
| Gearbox Orientation | Inline |
| Gearbox Type | Planetary |
| Gearbox Ratio | 4:1 |
| Gear Material | Composite / Steel |
| Gearbox Stages | 1 |
| Gearbox Efficiency | 90% |
| Gearbox Axial Load | 60 N |
| Gearbox Radial Load | 200 N |
| Gearbox Continuous Torque | 1.2 Nm |
| Gearbox Intermittent Torque | 1.8 Nm |
| Backlash | 42 arc.min |
| Weight (kg) | 0.45 |