Hirobo HI0304167 Embla EB pinion gear 11T for RC helicopter motor drive  [HI0304167]

Embla EB pinion gear 11T overview

This is an RC-scale pinion gear intended for use with the Hirobo Embla EB platform, supplied under model HI0304167. The 11-tooth pinion is a direct drivetrain component that transfers torque from the motor to the spur gear, so correct fitment and mesh are important for predictable performance.

When replacing or tuning this pinion, check gear mesh and axial alignment on the motor shaft, confirm the set-screw or retention method is secure, and inspect mating teeth for wear. Small adjustments to mesh and spur alignment will affect rotor response and drivetrain noise, so tune incrementally and verify after each change.

As an aftermarket RC accessory, this part is intended for maintenance, replacement, and gear-ratio adjustments on Embla EB-class helicopters and should be treated as a model-scale component during installation and testing.