Series 121-9 - 2.1" Planetary Gear Motor (Plastic)

The Hansen series 121-9 gear motor matches our 2.1" diameter DC brush motor with a 2" diameter plastic planetary gearbox. The planet gears share the load attached to the output shaft giving the planetary arrangement a higher torque to volume ratio with low backlash compared to a spur gear arrangement. Dozens of ratios are available up to 2653:1. Encoders can also be added.

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Hansen Series 121-9 Datasheet Page 1
Hansen Series 121-9 Datasheet Page 2
Hansen Series 121-9 Datasheet Page 3