This Hirobo XRB SR Super Gear B is an RC-scale drivetrain spare designed for the XRB SR helicopter line. It is presented as a direct replacement gear intended for routine maintenance and part refresh during model upkeep.
Role: this gear serves in the transmission path of the model, transferring drive between motor pinions and downstream spur sections, affecting mesh and collective response; installers should verify gear mesh and shaft alignment during reassembly to maintain smooth operation.
Installation notes: remove the canopy and access the main gearbox area, retain bearing clearance and check for play before final assembly, and use correct fastener torque to avoid deformation of gear faces; balance checks after fitting help prevent vibration that can affect flying characteristics.
Tuning relevance: swapping this gear can change drivetrain smoothness and perceived responsiveness depending on gear wear and mesh; when replacing, inspect associated pinion gears, bearings, and gearbox housing for wear to ensure consistent performance.
Copyright © 2008-2026 rcjaz.com All rights reserved
