SII-22 Motor Bearing Upgrade Kit Scorpion SPS22BK  [SPS22BK]

Performance bearings for SII-22 outrunners

The Scorpion SPS22BK bearing kit is a replacement set made for SII-22 series outrunner motors found in RC setups. Fresh bearings improve rotational smoothness, lower frictional losses, and can subtly affect throttle response and top-end consistency when tuning power systems.

Compatibility is focused on the SII-22 family; use this kit when bearings show grinding, noticeable roughness, excessive play, or when motor temperature climbs during regular operation. Bearing replacement is a simple upgrade that preserves motor efficiency and ensures repeatable power delivery under different tuning loads.

Installation involves removing the motor, disassembling the endbell and rotor to access the bearings, pressing the old bearings out and seating the replacements correctly to maintain shaft concentricity, then reassembling and confirming free, quiet rotation before reinstalling. After fitting, run the motor at modest load to check for reduced noise and stable temperatures while tuning.