Hirobo HI2521096 Shaft Collar for Rotor Alignment and Tuning  [HI2521096]

Shaft collar role in setup and tuning

The Hirobo HI2521096 collar is an RC-scale shaft collar designed for integration with Hirobo helicopter general parts. It secures components on a shaft to preserve axial placement and plays a subtle but important role in rotor balance and drivetrain behaviour. The section below outlines compatibility notes, installation guidance, and how the collar can affect tuning outcomes.

Compatibility: listed among Hirobo helicopter general parts, the collar is appropriate where the specified dimensions correspond to the shaft and neighbouring parts. Confirm actual shaft diameter and clearance before fitting to ensure there is no unintended contact during operation.

Installation and service role: fit the collar to the required axial location and clamp it so retained parts cannot shift under load. Typical uses are fixing gear position, maintaining rotor spacing, and enabling repeatable alignment when optimising tracking or drivetrain tolerances. During maintenance inspect the collar for surface damage or distortion and replace if it compromises secure clamping or alignment stability.