Hirobo HI0402327 S-30 Clutch Collar Bearing  [HI0402327]

Bearing for S-30 clutch assemblies

The Hirobo HI0402327 bearing serves as a model-scale replacement for S-30 clutch assemblies used in RC helicopters. Its built-in collar aids axial positioning to keep the bearing aligned within the clutch stack during operation.

Replace worn clutch bearings with this part when precise collar fit is needed to preserve clutch alignment. The bearing offers a consistent bearing surface for the clutch drum or hub, helping maintain reliable engagement when combined with properly set clutch shoes and springs.

Maintenance tips: verify the bearing is fully seated against the collar and clutch housing, check for axial play after installation, and swap it out if you notice roughness or signs of wear. This product is described as an aftermarket replacement for RC helicopter clutch assemblies.