39mm Rotor Cross Bar Upgrade for Eagle/Freya/EX/SX HI0404637 Hirobo  [HI0404637]

HIROBO 0404-637 CROSS BAR L=39MM #0404637
Price:
AUD$20.82
Brand:
Hirobo
Model:
HI0404637
Condition:
Brand New
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Replacement cross bar for rotor linkages

This cross bar is produced as an RC-scale spare to replace the original 39mm component within Hirobo rotor assemblies. It is designed to preserve the correct linkage geometry and ensure consistent handling where the 39mm length is specified.

As a short linkage member, the bar transfers inputs between control linkages and hub elements in the rotor and tail system. Matching the 39mm length is essential to keep control throws and trim characteristics as intended by the model's setup.

Fitting notes: extract the damaged part, check the bore and alignment, then install using the model's existing hardware. Observe recommended torque and ensure adequate clearance. After installation, adjust control endpoints as necessary to re-establish neutral trims.

Inspection tips: look for any distortion, wear at the mounting bores, or looseness. Replace the cross bar if play or deformation occurs to avoid unexpected control reactions.

Compatibility

  • Eagle
  • Freya
  • EX
  • SX

Is the HI0404637 robust enough for sport flying?

The cross bar is intended as a direct spare to replace the original 39mm part. Regularly inspect for wear and replace if any signs of stress appear to maintain safe operation during sport flying.

Can I reuse the original screws when fitting this bar?

Yes, you can reuse original hardware if it is undamaged and the threads are intact. Otherwise replace with equivalent fasteners and set torque to the model's recommendations.

Will replacing the cross bar affect my trims?

Replacing with an identical 39mm bar should not change trims, but minor endpoint adjustments are often required to restore exact neutral positions after reassembly.

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