HRNSG3227 - 27T Steel 32p Pinion Gear 5mm Bore

This 27‑tooth 32 pitch pinion gear is precision CNC machined from hardened steel and nitrided for increased surface hardness and corrosion resistance, making it suitable for demanding RC drivetrain applications where metal gear longevity is critical. Its 5 mm bore interfaces directly with common 5 mm motor shafts used on many 1/10 and 1/8 scale electric cars, trucks, and buggies, providing firm attachment and efficient power transfer. The gear’s tooth profile and pitch are engineered to mesh smoothly with standard 32 DP spur gears, minimizing backlash and drivetrain noise while maintaining robust engagement under load. Face width and overall length are optimized to clear motor housings and other chassis components when installed. A single M5×5 mm set screw is included for secure mounting to the shaft, with a hex key and thread locker recommended for proper installation. This gear is ideal for tuning final drive ratios to adjust vehicle acceleration and top speed characteristics or replacing worn pinions in high‑torque setups.

• 27 tooth count matched to 32 DP spur gear systems for precise drivetrain meshing
• hardened, nitrided steel construction for enhanced wear resistance and durability
• precision CNC machined teeth deliver smooth power transfer and low backlash
• 5 mm bore for direct fit on compatible motor shafts without adapters
• optimized face width and length for minimal interference with motor housings
• included M5×5 mm set screw for secure shaft mounting with basic tools
• suitable for tuning gear ratios or replacing worn gears in competitive or recreational RC builds