Scorpion SPHK4035MSK8 Outrunner Motor Shaft Kit 8mm Shaft Replacement for RC outrunner motors  [SPHK4035MSK8]

Motor Shaft Replacement Kit

This Scorpion SPHK4035MSK8 shaft kit is an RC-scale replacement part intended for outrunner brushless motors that accept an 8mm shaft. It serves as a direct replacement option when the original shaft shows wear, scalloping from collars, or minor damage that affects runout and balance.

Use this kit when performing routine motor maintenance or mid-level rebuilds on RC motors; it is intended to restore mechanical alignment between the rotor and stator and to provide a stable mount for pinion or other driveline interfaces found on outrunner designs. Confirm your motor is an outrunner type and that the shaft interface measures 8mm before ordering.

Installation notes: inspect bearings and bearing seats for wear before installing the replacement shaft, ensure the shaft seats squarely in the rotor and bearing bores, and verify axial play and runout after assembly. Tighten any retaining hardware to appropriate torque for model-scale components and perform a static balance check prior to dynamic testing.