HRNSG18M15 - 18t Mod 1.5 Hardened Steel Pinion Gear 8mm Bore

Hardened steel pinion gear with an 18‑tooth, 1.5 module tooth profile and an 8 mm bore. It’s engineered to mesh precisely with 1.5 mod spur gears in RC electric drivetrains, providing consistent power transfer and improved wear resistance under high torque and load compared with stock softer gear materials. Precision cut teeth and a balanced design help maintain smooth rotation and reduce drivetrain lash.

• hardened steel construction increases durability and wear resistance compared with stock pinion gears

• 18‑tooth 1.5 mod tooth profile meshes precisely with matching spur gears

• 8 mm bore fits common large‑scale and 1/8‑scale motor shafts

• precision machined teeth help maintain accurate gear mesh and reduce drivetrain noise

• balanced gear design supports smooth power transfer and reduced vibration

• suitable for high‑torque motor setups and aggressive driving conditions

• direct replacement for compatible Mod 1.5 gearing systems