Gearboxes
Electric motors typically achieve their highest power and efficiency at high RPMs. Gear drives are one way to customize output RPM torque. Neumotors offers planetary gear drives matched to the motor sizes we sell.
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- GEM 5.6:1 gear drive is suitable for motors up to 700 watts and has a 6mm output shaft.
- P29 and P32 gear drives can handle props up to 20 inches and 3000 watts.
- P42 drive is best suited for systems in the 3,000 – 5,000 watt range turning props up to 30 inches in diameter.
- P62 is suitable for well over 10,000 watts. The 12mm shaft easily handles props over 30 inches in diameter.
| Gearbox | Motor Series | Gear Ratio | Shaft OD | Needle Bearings | Ball Bearing Output | Weight |
| P22-G | 07, 11 | 5.6-1 | 6mm | no | yes | .88 oz (25g) |
| P22-M | 11 | 4.4-1 | 4mm | no | yes | 1.8 oz (51g) |
| P29 | 11 | 6.7-1 | 6mm | yes | yes | 1.8 oz (51g) |
| P32 | 14,15,17,19 | 3.7-1 | 6mm | yes | yes | 2.3oz (65g) |
| P32 | 14,15,17,19 | 4.2-1 | 6mm | yes | yes | 2.3oz (65g) |
| P32 | 14,15,17,19 | 5.3-1 | 6mm | yes | yes | 2.3oz (65g) |
| P32 | 14,15,17,19 | 6.7-1 | 6mm | yes | yes | 2.3oz (65g) |
| P42 | 15,17,19, 22 | 6.7-1 | 8mm | yes | yes | 5.5oz (156g) |
| P62 | 22, 30, 32, 44 | 6.7-1 | 12mm | yes | yes | 15oz (425g) |
