RC Car Upgrade Parts 40Cr Steel Motor Gear 21T

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Made with 40Cr carbon steel, hardening black treatment, stronger than the original gear, wear-resistance and better transmission. Double kimi screw fixation makes the gear more sta ble. Specifications : Motor tooth diameter: 5mm, D-shaped motor gear hole, module: 1.0mm, number of teeth: 21T, total thickness: 15mm, tooth surface thickness: 8mm, tooth surface outer diameter: 22.9mm. Package includes : Motor gear 20T-1pc ; 4X5 Screw shaft-2pc. All motors suitable for the above specifications can be used. Show more