Embla EB Counter Gear Assembly 28T with 14T Pulley - HI0304130 HIROBO  [HI0304130]

Embla EB counter gear assembly (28T + 14T)

This RC counter gear assembly is listed as HIROBO HI0304130 and is made for Embla EB-series helicopters. The kit couples a 28-tooth counter gear with a 14-tooth pulley to transmit rotation through the model's drivetrain and serves as a direct replacement when worn components need swapping.

The component's main role is power transfer and setting the correct gear mesh: the counter gear establishes rotational relationship while the pulley connects to the transmission path. During installation, check gear alignment and confirm free rotation of mating gears, ensure mesh is correct without binding, and verify the pulley is seated before final tightening.

For setup and tuning, make small, incremental mesh adjustments and recheck rotation by hand at low power before any powered testing. This approach helps avoid premature wear and keeps transmission noise and backlash under control for reliable RC helicopter operation.