Outrunner Motor Shaft Kit for HK-2206 4mm / 2.5mm — Scorpion SPHK-2206MSK25  [SPHK-2206MSK25]

Tuning and rebuild shaft for HK-2206 motors

This replacement shaft kit is designed for Scorpion HK-2206 series outrunner motors and is intended for model use only. It restores the rotor shaft geometry required for precise alignment with bearings and the pinion, which is important when tuning for low friction and reliable power transfer.

Fitting advice: separate the motor bell and examine bearing condition and axial clearance before inserting the replacement shaft, confirm the shaft slides cleanly into the rotor and that the output end aligns with the pinion or coupling. After assembly, perform a spin and runout check at low speed prior to full-power operation. This part is useful when tuning or upgrading motor performance.