ITEM NAME:5pcs 64DP 3.175mm Pinion 36T 37T 38T 39T 40T Motor Gear Set for 1/10 RC Car R9C2 5pcs 64DP 3.175mm Pinion 36T 37T 38T 39T 40T Motor Gear Set for 1/10 RC Car R9C2 Use:Vehicles & Remote Control Toys RC Parts & Accs : Servo Accessories Technical parameters : Value 2 For Vehicle Type : Cars Tool Supplies : Assembly Category Four-wheel Drive Attributes : Assemblage Upgrade Parts/Accessories : Gear Remote Control Peripherals/Devices : Pinion The gears are milled by precisely Tanwai milling machine A M3 set screw(12.9 level)has been added to each pinion gear Hard anodized on the gear surface Suit 1/10 cars Teeth: 36T, 37T, 38T, 39T, 40T Diametral Pitch: 64 DP 36T Size: ï ¿ 15.0 * 9mm/0.59*0.35 inch 37T Size: ï ¿ 15.4 * 9mm/0.61*0.35 inch 38T Size: ï ¿ 15.8 * 9mm/0.62*0.35 inch 39T Size: ï ¿ 16.2 * 9mm/0.64 *0.35 inch 40T Size: ï ¿ 16.6 * 9mm/0.65 *0.35 inch Suitable Shaft Diameter: 3.175mm/0.13 inch material:7075 Aluminum alloy colour:Brass color packing include:1 * 64DP 36T Pinion Motor Gear 1 * 64DP 37T Pinion Motor Gear 1 * 64DP 38T Pinion Motor Gear 1 * 64DP 39T Pinion Motor Gear 1 * 64DP 40T Pinion Motor Gear 5 * machine screws Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..1 64DP 37T Pinion Motor Gear. 1 64DP 38T Pinion Motor Gear. 1 64DP 39T Pinion Motor Gear. 1 64DP 40T Pinion Motor Gear. Teeth: 36T, 37T, 38T, 39T, 40T. Four-wheel Drive Attributes : Assemblage.