Hirobo HI0402327 Replacement Bearing for S-30 Clutch with Collar  [HI0402327]

S-30 clutch replacement bearing details

This Hirobo HI0402327 bearing is an RC-scale replacement part made for use with S-30 clutch assemblies on model helicopters. The unit is fitted with an integrated collar to help position the bearing axially during installation and to keep alignment within the clutch stack.

Fit this bearing when refreshing worn clutch parts or whenever a precise collar fit is necessary to preserve clutch alignment. The bearing provides a steady running surface for the clutch drum or hub, supporting consistent engagement behavior when used with correctly adjusted clutch shoes and springs.

Installation notes: ensure the bearing sits flush against the collar and clutch housing, check for any axial play after fitting, and replace the part if you detect roughness or excessive wear. This component is an aftermarket accessory intended specifically for RC helicopter clutch assemblies and is described as a model-scale replacement part.