Associated RC 18T Gearbox Main Gear Adaptor AR115 Alloy by GPM  [AR115]

Main gear adaptor for Associated RC18T maintenance

This alloy main gear adaptor is intended for the Associated RC 18T platform, supplied as a 1 pcs set complete with mounting screws and referenced as AR115. Use it as a replacement when the original unit is worn or to achieve a more secure seating of the spur gear within the gearbox.

Installation notes: mount the adaptor on the main gear shaft and ensure correct alignment with the spur gear teeth, tighten the supplied screws progressively and check for axial play before applying final torque. Use proper drivers and avoid over-tightening to protect threads; inspect mesh and backlash once fitted.

Tuning role: the adaptor supports concentric alignment of the spur gear during rebuilds and servicing, which helps maintain steady gear engagement and predictable drivetrain behaviour when running.