TRAXXAS TRX4 TRAIL CRAWLER 14T Steel Pinion Gear by GPM TRX4014T  [TRX4014T]

14T Steel Pinion for TRAXXAS TRX4

This is an RC-scale steel pinion gear produced by GPM for TRAXXAS TRX4 Trail Crawler applications, supplied as a 2pcs set. It connects directly to the motor shaft and transmits drive to the vehicle's drivetrain, serving as the primary interface between motor and spur gear.

Material and basic dimensions are taken from the source: hardened steel #45 construction, 14T tooth count, center bore 3.175mm, tooth distance 0.8mm, pitch 32. The set includes a 3x3 screw shaft used to secure the pinion on the motor shaft. These values should be matched against your existing spur gear and motor shaft when replacing or upgrading.

Installation and tuning notes: confirm the motor shaft diameter matches the 3.175mm bore, verify gear mesh with the spur gear to avoid binding, and tighten the securing screw to proper torque to prevent slippage while avoiding damage to the shaft. Changing pinion tooth count alters gear ratio, trading top speed for torque or vice versa, so plan pinion selection according to terrain and motor/ESC setup.