EMBLA EB Pinion Gear 14T - HI0304169 by Hirobo  [HI0304169]

HIROBO 0304-169 EMBLA EB PINION GEAR 14T #0304169
Price:
AUD$7.81
Brand:
Hirobo
Model:
HI0304169
GTIN:
4512895156985
Condition:
Brand New
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Technical overview: EMBLA EB motor pinion

This 14-tooth pinion is specified for EMBLA EB helicopters and serves as the motor shaft mating gear. The HI0304169 restores or alters the mesh between motor and spur gear for EMBLA EB drivetrains.

Replace this part when the existing pinion shows wear or when changing gear ratios for tuning. As the primary gear on the motor shaft, it affects backlash and drivetrain smoothness.

Fitting advice: remove or support the motor to access the shaft, confirm shaft diameter and set screw alignment, then position the pinion to obtain correct mesh with the spur gear. Always check mesh under slow rotation and re-tighten the set screw after an initial run.

Tuning impact: changing to the 14T pinion modifies the effective gear ratio, which can be used to tune head speed and tail/rotor response. Confirm clearances in the gearbox and check bearings and spur gear condition to avoid accelerated wear.

How do I know this fits my EMBLA EB helicopter?

Match your helicopter's parts list or service manual to confirm compatibility; the HI0304169 is for EMBLA EB variants that use a 14T motor pinion.

Best practice for securing the pinion?

Seat the pinion at the correct axial position, tighten the set screw to the recommended torque, and perform a short run to settle parts, then re-check torque to ensure secure retention.

Any preparation before first flight after fitting?

Confirm smooth mesh, check for unusual noise during low-power runs, and inspect surrounding gearbox components. Only proceed to normal flight once the drivetrain runs quietly and securely.

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