







28mm DC Planetary Gear Motor includes 28RP385 and 28RP395 Dc Planetary Gear Motor. Some customer has a higher requirements about the motor performace, we can also use 28RP3161 and 28RP3175 DC Planetary Gear Motor. This kind of Planetary Gear Motor is mainly applied on medical devices like injection equipment, beauty instruments and massage devices.
28Mm Dc Planetary Gear Motor has the following characterics:
1.the 28mm dc Planetary Gear motor has a good performance on the noise level;
2.the planetary gearbox has a longer working life than other types gearbox;
3.the micro dc planetary gear motor has a small size, but the torque it could reach equal to some gearbox over 30mm
For 28mm dc planetary gear motor, there are 4 types gearbox;
For the 1 stage gearbox, we have 3.7, 5.2 gear ratio;
For the 2 stages gearbox, we have 14, 19, 27 gear ratios;
For the 3 stages gearbox, we have 51, 71, 100, 139 gear ratios;
For the 4 stages gearbox, we have 186, 264, 369, 515, 721 gear ratios;
Number of stages | 1 | 2 | 3 | 4 |
Reduction ratio | 3.7, 5.2 | 14, 19, 27 | 51, 71, 100, 139 | 186, 264, 369, 515, 721 |
Gearbox length(L) mm | 27.5 | 35.5 | 43.5 | 51.5 |
Breaking torque(kgfcm) | 6 | 10 | 20 | 40 |
Gearbox efficiency | 90% | 81% | 73% | 65% |

28mm DC Planetary Gear Motor
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SHENZHEN DONGMING MOTOR CO., LTD. , http://www.dmdcmotor.com