This 5mm shaft assembly is supplied as a direct replacement for Scorpion S-3014 series outrunner motors. The shaft dimension is matched to the S-3014 geometry so it will seat in the existing bearing bores and align with the motor pinion and spur configuration found in that motor family.
Use the kit when you see axial play, excessive runout, or visible wear on the original shaft. Installing a fresh shaft helps restore correct alignment and reduce uneven bearing wear, which contributes to smoother motor operation and longer service life when bearings are also checked.
Installation notes: designed for direct fit into S-3014 outrunner assemblies and compatible with the stock internal layout. Confirm full seating in the bearing journal and correct pinion engagement before final assembly. Test low-speed rotation for smoothness and minimal wobble prior to reinstalling the motor.
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