Eagle Freya EX-EP Tail Counter Gear 21T - HI0307026 by Hirobo  [HI0307026]

HIROBO 0307-026 EAGLE FREYA EX-EP COUNTER GEAR 21T #0307026
Price:
AUD$15.90
Brand:
Hirobo
Model:
HI0307026
GTIN:
451289525624
Condition:
Brand New
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Fitment notes and usage

This 21T counter gear is an RC-scale replacement part specified by the product name for the Eagle Freya EX-EP line. It is intended as a drivetrain component inside the model helicopter transmission where correct tooth count and mesh affect tail and main rotor behaviour.

Mechanics fit this part when correcting backlash or replacing worn components during a rebuild. Prior to final assembly confirm free rotation, correct axial location, and that the gear seats without lateral play.

Practical installation tips: check hub seating and clearance against the spur and pinion, verify shaft and bearing condition, and use the correct fastener torque to prevent changes to gear mesh. This product is for RC helicopter use only.

How should I re-check mesh under power after fitting?

Run the drivetrain at low throttle and observe for vibration or binding, then slowly increase power while listening for irregular noises. Adjust backing or shims as needed to achieve smooth engagement under load.

Could this gear change tail responsiveness?

Minor changes in gear mesh or backlash can affect tail feel. After installation, test hover trims and adjust tail servo endpoints or gyro settings if handling differs from pre-replacement behaviour.

Any balancing or alignment checks recommended?

Confirm rotor tracking and balance after drivetrain work. Misaligned gears can transmit vibration to the airframe, so ensure all rotating assemblies are true and bearings run smoothly.

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