This Hirobo XRB SR Super Gear B is an RC drivetrain component built for use in XRB SR helicopters. It is supplied as a replacement gear to refresh worn parts and keep the model performing as intended.
Role: the gear transmits rotational force through the main transmission train, affecting mesh quality and collective feel; correct seating and alignment are important to avoid uneven wear and drivetrain noise.
Installation notes: open the fuselage to access the gearbox area, check bearing clearance and eliminate any play before final torquing, and apply recommended torque values to prevent gear distortion; conduct a slow bench run to confirm smooth engagement.
Tuning relevance: installing a new HI0301110 can tighten the drivetrain and lower vibration levels, which in turn can refine control response; always assess adjoining components for wear to secure matching performance.
Copyright © 2008-2026 rcjaz.com.au All rights reserved