Hirobo HI2521062 Collar 5 x 6 x 9.5 for RC Helicopters  [HI2521062]

Precision collar for shaft retention

The Hirobo HI2521062 collar offers a compact option to hold small components on model helicopter shafts, providing a defined internal bore for controlled axial placement. It is suitable where repeatable positioning is important for maintenance or setup.

Prior to fitting, verify the shaft size against the 5 x 6 x 9.5 dimension to ensure proper fit. Slide the collar into place, align neighboring components, and secure it using the collar's fastening method. Carry out a low-speed balance check and visually inspect clearance before operation.

For service, replacing deformed or worn collars will restore consistent spacing; the collar functions as a simple mechanical stop without changing drivetrain geometry.