42/57 Precision Planetary Gearbox Gear Reducer Ratio 5:1 10:1 20:1 25:1 50:1

Planetary reducer x 1pcs. Optional speed ratio: 5/10/20/25/50. Full load efficiency: 90%. Model Speed ratio Torque Length. Adapted motor: 57 stepper motor. Adapted motor: 42 stepper motor. Good Good quality.

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