Hirobo Embla EB 11T Pinion Gear HI0304167 for Motor Drive  [HI0304167]

11T Pinion Overview for Embla EB

This pinion is an RC-scale drivetrain component made for the Hirobo Embla EB platform and identified by model HI0304167. The eleven-tooth pinion connects the motor output to the spur gear; accurate fitment and tooth engagement are important for predictable drivetrain performance.

When changing or adjusting this pinion, inspect the gear mesh and the motor shaft axial position, confirm the retention method (set-screw or equivalent) is secure, and examine the mating gear teeth for damage. Gradual adjustments to mesh and spur alignment will affect rotor feel and operating noise, so test incrementally.

As an aftermarket component, this pinion is intended for maintenance, swap-outs, and gear-ratio tuning on Embla EB-class helicopters and should be treated as a scale model part during setup and trials.