GPH 346 Counter Gear Joint Shaft - HI0403245 by Hirobo  [HI0403245]

Counter gear joint shaft details

This RC counter gear joint shaft is the Hirobo part HI0403245, supplied as the service replacement for GPH 346 helicopter assemblies. The component fits into the counter gear area of compatible GPH 346 drivetrains and serves as the rotating shaft that couples the gear elements in the assembly.

Installation notes: seat the shaft into the counter gear housing using the helicopter's factory alignment marks, inspect mating gear faces for correct mesh and runout, and make sure bearings that contact the shaft are free from debris before final assembly. Use the correct small hex drivers and follow the tightening sequence shown on your model parts diagram to avoid misalignment.

Tuning and maintenance role: the shaft is a replaceable wear item intended for use when gear play or shaft damage impairs smooth drivetrain operation. During setup check gear mesh and axial play under slow rotation, and run a brief bench test to confirm smooth engagement before conducting flight checks.