PTK8624 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore) (37T)

This is a lightweight aluminum pinion gear from ProTek RC designed for 48-pitch (48P) RC drivetrains with a 3.17 mm bore and 37-tooth count. Machined from hard anodized aluminum, it reduces rotating mass compared with steel gears, helping improve throttle response and motor spool-up in performance and drag applications. Precision cut 48P teeth ensure smooth engagement with compatible spur gears for reliable mesh and efficient power transfer. The 3.17 mm bore fits standard RC motor shafts and installs easily with a typical set-screw mount for quick gearing changes.

• 48 Pitch
• Choose from 13 to 38 tooth sizes
• Hard anodized aluminum
• Super light weight design
• Etched tooth size for easy identification
• Less rotating mass
• Quicker motor spool up