Mod 1 42 Tooth Pinion Gear 8mm Bore Hardened Steel Spur Gear For RC Cars And Trucks High Strength 45 Carbon Steel Surface Hardened For Durable Motor Drive

Mod1 Pinion Gear 42T, 8mm Bore for RC Drives
✔️ 42T Mod1 pinion, 8 mm bore, hardened 45# carbon steel

This Mod 1 42T pinion is a hardened steel gear built for RC car and truck drivetrains. It meshes with a spur gear of matching pitch (Mod 1) to deliver reliable power transfer and consistent mesh in hobby RC setups. Includes one pinion and grub screw for secure mounting on 8 mm shafts.

✅ Teeth: 42T
✅ Bore: 8 mm
✅ Material: 45# carbon steel
✅ Surface treatment: high-frequency quenching for wear resistance
✅ Outer diameter: 44 mm
✅ Total thickness: 14 mm
✅ Includes grub screws for stable rotation

💡 What is a pinion gear used for in RC drivetrain systems? This handy part drives the spur gear to transfer motor power to the wheels, influencing speed and torque. - Works with the matched Mod 1 spur gear to set gear ratio and drive efficiency - Handy for dialing in acceleration and top speed on tracks or bashing days - Check bore size and grub screws for secure mounting and alignment