Hirobo HI0404565 Auto-Rotation Clutch for Eagle, Freya, EX and SX Series  [HI0404565]

Auto-rotation clutch details

The Hirobo HI0404565 auto-rotation clutch is an aftermarket replacement component used across several Hirobo helicopter lines. It functions to allow the main rotor to disengage and re-engage under autorotation, contributing to controlled rotor deceleration and restart during transition phases.

This item is presented as a common replacement for the listed Hirobo models. When preparing for clutch service, always check the HI0404565 part number against the clutch housing and rotor hub to ensure correct compatibility before removing components.

Routine replacement follows typical field maintenance: remove the canopy and rotor head to reach the clutch stack, swap the worn element for the new HI0404565, then reassemble and confirm smooth rotor engagement and correct free play at the bench prior to flying.

Compatibility

Intended as a common replacement across Hirobo Eagle, Freya, EX and SX families; verify HI0404565 is the OEM reference for your specific airframe before ordering to avoid fitment issues.

This HI0404565 clutch helps maintain consistent autorotation response and rotor engagement on compatible Hirobo helis; scheduled checks and careful bench tests extend service life.