90 w 220v Gear Motor Electric Motor 1: 50 27 rpm. Reduction Ratio: 1:50（50k）. Geared Motor Size：164mm 90mm 74mm. Note: Under Different Deceleration Ratio, the Output Shaft Speed Is Different. the Output Shaft Speed Is Equal to the Motor Speed of 1350 Rpm Divided by the Deceleration Ratio.
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