Hirobo HI0404637 Cross Bar L=39mm — Cross bar for Eagle/Freya/EX/SX  [HI0404637]

Cross bar replacement part

This is an RC-scale cross bar designed as a direct replacement or spare within common Hirobo helicopter assemblies. The part keeps the rotor linkage geometry stable and is intended for use where the original 39mm cross bar is required for proper fit and control response.

Functionally, the cross bar serves as a short linkage member in the rotor/tail assembly, helping transfer motion between control linkages and hub components. When replacing this part, confirm the 39mm length matches the existing part to preserve control throws and trim balance.

Installation notes: remove the damaged or worn cross bar, verify bore and mounting orientation, fit into the linkage using the original hardware and secure according to the model's torque and clearance needs. Minor tuning of control endpoints may be required after replacement to restore neutral trims.

Care and inspection: check for bends, wear at mounting bores, and secure fit regularly. Replace if any play or deformation is observed to prevent unpredictable control inputs.