Hirobo HI0403245 Counter Gear Joint Shaft for GPH 346  [HI0403245]

Counter gear joint shaft overview

This is an RC-scale counter gear joint shaft listed as HI0403245 from Hirobo, supplied as the service part referenced for GPH 346 assemblies. The component is intended to serve inside the counter gear area of compatible GPH 346 helicopter gear trains and functions as the rotating shaft that links gear elements in the assembly.

Installation notes: fit the shaft into the counter gear assembly following the helicopter's factory alignment points, check mating gear faces and runout, and ensure bearings that interface with the shaft are free of debris before final assembly. Use the correct hex screws and tightening sequence recommended by your model's parts diagram to avoid misalignment.

Tuning and maintenance role: this shaft is a replaceable wear part used when gear play or shaft damage affects smooth drivetrain operation. During setup verify gear mesh and axial play under slow rotation, and perform a short bench run to confirm smooth engagement before flight checks.