HIROBO HI0404563 Pipe Drive Bearing Guide  [HI0404563]

Pipe drive bearing guide overview

This is an RC-scale pipe drive bearing guide intended for use in helicopter driveline assemblies. It serves as a guide and seating point for the drive pipe and the walk‑through bearing that supports the tail or main drive train. The part is supplied as a single guide element to be used where the drive pipe passes through frames or bulkheads in Eagle, Freya, EX and SX series models.

Compatibility is limited to the listed series above; verify fit with your airframe before installation. Typical installation replaces an existing guide in the drive line, locating the bearing so the shaft runs concentric to the transmission. Aim for minimal axial play while avoiding preload on the bearing itself.

During setup and tuning check the guide alignment with the drive shaft, confirm the bearing rotates freely, and recheck set screws or retaining clips after first flights. Regular inspection for wear or scoring will indicate when the guide or the bearing should be replaced to maintain smooth driveline operation.