Eagle/Freya/EX/SX Cross Link 39mm Replacement - HI0404637 Hirobo  [HI0404637]

39mm rotor cross link

This part is an RC-scale cross link intended as a replacement or spare within Hirobo rotor assemblies. It keeps linkage geometry consistent and is specified where a 39mm cross bar is required for accurate fit and response.

Operationally, the cross link transfers motion between swash hub components and control linkages in the rotor/tail system. Confirming the 39mm dimension against your existing component is important to preserve control travel and trim stability.

Installation guidance: remove the worn cross link, inspect mounting bores and orientation, then refit using the original screws and hardware. Ensure clearances and fastener torque match the model's recommendations. Small endpoint adjustments may be needed to re-establish neutral trims.

Maintenance advice: inspect the bar regularly for bends, worn bores, or excessive play. Replace the component immediately if any deformation is detected to prevent unpredictable control behavior.