Main Gear Assembly For C138 Pro Bell 206 RC Helicopter With Rock Solid Power Transmission, Low Noise, Precise Tooth Spacing, Tight Meshing, And Plastic Components For Smooth Rotor Control And Reliable Performance

Main Gear Assembly for C138 Bell 206 RC - Single Unit
✔️ Precise tooth spacing, tight mesh, low noise, plastic body

Designed as a direct replacement part for the C138 Pro Bell 206 RC helicopters, this main gear set ensures reliable power transfer from the drive system to the rotor, supporting steady response and confident control during flight. Compact in size at 30 x 30 x 8 mm (about 1.18 x 1.18 x 0.31 in).

✅ Direct replacement fit matches original model specs
✅ Durable plastic construction resists wear and deformation during normal operation
✅ Precision tooth design enables tight meshing and efficient power transfer
✅ Compact spare part for maintenance or quick repairs

💡 What is a main gear assembly used for in RC helicopters?

It serves as the drive link between motor power and the rotor, enabling smooth lift and stable handling.

- Provides smooth power transfer and precise meshing for rotor control
- Reduces vibration and wear through accurate tooth spacing
- Plastic construction resists chipping and deformation for long life
- A handy replacement part to refresh drivetrain performance on aging gear
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