Planetary gearbox D303
Specification
| Housing material | Bearing at output | Radial load (10mm from flange) | Shaft axial load | Shaft press fit force,max. | Radial play of shaft | Thrust play of shaft | Backlash at no-load |
| Metal | Sleeve bearings | ≤3Kgf | ≤2.5Kgf | ≤10Kgf | ≤0.08mm | ≤0.2mm | ≤3° |
| Metal | Ball bearings | ≤3.5Kgf | ≤2.5Kgf | ≤10Kgf | ≤0.05mm | ≤0.2mm | ≤3° |
Pinion Specifications
| Module | No. of teeth | Pressure angle | Hole diameter | Reduction ratio. |
| 0.5 | 11 | 20° | 2.28，2.48，2.98 | 1/5,1/19,1/27,1/71,1/100,1/139,1/264,1/516,1/721 |
| 0.5 | 17 | 20° | 2.28，2.48，2.98 | 1/4,1/14,1/51,1/189 |
| 0.5 | 8 | 20° | 2.28 | 1/35,1/939 |
Gearbox Description
| Reduction ratio | 1/4 | 1/5 | 1/14 | 1/19 | 1/27 | 1/35 | 1/51 | 1/71 | 1/100 | 1/139 | 1/189 | 1/264 | 1/516 | 1/721 | 1/939 |
| Rated tolerance torque | 2.0 | 2.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 8.0 | 8.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 |
| Max momentary tolerance torque | 6.0 | 6.0 | 9.0 | 9.0 | 12.0 | 12.0 | 18.0 | 18.0 | 24.0 | 24.0 | 30.0 | 30.0 | 30.0 | 30.0 | 30.0 |
| Efficiency | 80% | 80% | 70% | 70% | 70% | 70% | 60% | 60% | 60% | 60% | 50% | 50% | 50% | 50% | 50% |
| Length（L-mm） | 23.6 | 23.6 | 30.0 | 30.0 | 30.0 | 30.0 | 36.4 | 36.4 | 36.4 | 36.4 | 42.8 | 42.8 | 42.8 | 42.8 | 42.8 |
| Weight（g） | 79 | 79 | 92 | 92 | 92 | 92 | 107 | 107 | 107 | 107 | 122 | 122 | 122 | 122 | 122 |