uxcell Mod 1 19T Pinion Gear 8mm Bore Hardened Steel Motor Rack Spur Gear for RC Car Truck Gear Drive

Descriptions Universal Mod 1 pinion gear, fit 8mm RC motor shaft, 19 Teeth surface hardened, for RC car truck and more. Made of 45# carbon steel, the pinion gear has better hardness, higher strength and resistance to deformation than ordinary A3 steel. Frequency hardened parts have higher wear resistance, higher strength and lower notch sensitivity, durable and reusable. Each pinion is equipped with grub screws for more stable rotation and easy installation. Please make sure your spur gear have the same pitch(Mod 1) to work with and check the size before purchasing. Specifications Model: Mod 1 Teeth: 19T Teeth Surface: Hardened Material: 45# Steel Surface Treatment: High-Frequency Quenching Hole Size (Bore): 8 mm Outer Diameter (Teeth Part): 21 mm Effective Teeth Length: 2.4mm Total Thickness: 14mm Package includes 1 x Mod 1 Pinion Gear, 1 x Set Screw