Hirobo HI2521059 7 x 8 x 10 Shaft Collar for RC Helicopter Components  [HI2521059]

Small Shaft Collar for RC Helicopters

This Hirobo-branded RC collar is listed as HI2521059 with the 7 x 8 x 10 designation shown in the product name. It functions as a compact shaft locating and retention component used inside helicopter component assemblies, where accurate axial positioning of rotating parts helps maintain dependable drivetrain behaviour.

In use the collar prevents axial movement of shafts and holds linkages or gear interfaces at their intended positions during flight and tuning. When installing or replacing this collar, match the 7 x 8 x 10 label to your helicopter's parts diagram or service manual to confirm correct fit before fitting.

Installation note: slide the collar onto the shaft, set it to the required position, and secure it using the fastening method specified for your helicopter model; avoid over-tightening to prevent shaft damage and re-check alignment after a short test run.