Hirobo HI0404506 Damper Collar for Eagle/Freya EX SX Models  [HI0404506]

Damper Collar Overview

This Hirobo HI0404506 damper collar is a replacement component for the common damper assemblies fitted to Eagle, Freya, EX and SX helicopter models. It locates and secures the damper shaft inside the shock housing to preserve alignment and consistent damping response in flight.

As a small mechanical part, the collar requires inspection for fit and wear rather than electrical checks. When servicing, ensure the collar sits flush to the damper housing, that the shaft has no lateral play, and that you reuse the original retaining method to avoid the collar loosening in use.

In tuning the damping stack, the collar affects compression and rebound characteristics; replacing a worn collar or verifying correct seating helps keep adjustments repeatable when changing oil weight or spring preload. Carry spare collars for quick field repairs during practice or events.