Hirobo HI0404565 Auto-Rotation Clutch for Eagle/Freya/EX/SX series  [HI0404565]

Auto-rotation clutch overview

This Hirobo HI0404565 auto-rotation clutch is an RC-scale replacement part intended for shared clutch assemblies on several Hirobo helicopter lines. It functions as the mechanical element that permits the rotor system to disengage or re-engage under autorotation conditions, helping with controlled rotor spin-down and restart during flight transitions.

The part is presented as a direct accessory for common Hirobo models listed in the product category. When inspecting a helicopter for clutch replacement, confirm the part number HI0404565 against the rotor hub and clutch housing before disassembly to ensure correct fitment.

Installation typically requires standard field maintenance: remove the canopy and rotor head components to access the clutch stack, replace the clutch element, then reassemble while checking for proper rotor spin and free play. Adjustment and testing on the bench before flight help set engagement timing and smooth rotor transition during autorotation practice flights.

Compatibility

Designed as a common replacement clutch within Hirobo helicopter lines categorized under Eagle, Freya, EX and SX platforms; confirm HI0404565 as the correct OEM number for your specific airframe before ordering.

This HI0404565 clutch serves as a component-level replacement to maintain predictable autorotation behavior and rotor engagement on supported Hirobo helis; proper bench testing and routine inspection will preserve flight consistency.