ITEM NAME:1/10 RC Crawler 3:1 Planetary Gear Reduction Unit for 540 Motor RC Car Toys K4Q1 1/10 RC Crawler 3:1 Planetary Gear Reduction Unit for 540 Motor RC Car Toys K4Q1 1. 3:1 planetary gear reducer. 2. Mainly used in crawler reducer, when the required torque is greater than the speed. 3. Smooth way can slow down RC car speed and increase climbing torque. 4. Climbing car universal type 540 motor collocation use. Specifications: Length (without motor shaft): 27mm / 1.06 inch Diameter: 36mm / 1.42 inch Color: Black Output shaft diameter: 3.175mm / 0.13 inch Output shaft length: 15mm / 0.59 inch Material: metal Package Contents: 1*Gear Reduction Unit 1*Motor
