XRB SR Main Gear Upper for XRB SR Helicopters - Hirobo HI0301043  [HI0301043]

HIROBO 0301-043 XRB SR MAIN GEAR UPPER #0301043
Price:
CAD$20.12
Brand:
Hirobo
Model:
HI0301043
GTIN:
4512895140489
Condition:
Brand New
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Upper Main Gear for XRB SR Airframes

This Hirobo HI0301043 main gear upper is an RC replacement part designed specifically for XRB SR helicopter platforms. It functions as the upper section of the main transmission gear assembly and is supplied as a direct replacement for worn or damaged drivetrain pieces.

Installation notes: confirm correct seating on the main shaft and verify axial and radial alignment before final tightening. Inspect mating gear teeth and bearings for wear, set spur engagement carefully, and secure fasteners to the airframe maker's recommended torque values.

Tuning and maintenance role: fitting a new upper main gear restores proper mesh and helps lower vibration caused by pitted or worn gear surfaces, making it a practical swap during routine maintenance or pre-flight checks on XRB SR helicopters.

Will this fit every variant of the XRB SR series?

It is made for XRB SR series airframes; always match HI0301043 to your parts list and do a visual fit check against your helicopter before installing.

Does the package include bearings or mounting hardware?

This listing covers the upper main gear only. Bearings, screws, and other hardware are not included unless stated elsewhere in your kit contents.

What checks should I perform after fitting the new gear?

After fitting, verify gear mesh, check shaft runout, tighten fasteners to spec, and perform a low-speed spin test to confirm smooth engagement and quiet operation.

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