Replacement Main Shaft for OMH-4535-560 Motor - O.S. Engine OS74004052  [OS74004052]

Direct replacement main shaft for OMH-4535-560

This O.S. Engine OS74004052 main shaft is intended as a direct replacement for OMH-4535-560 brushless motor assemblies. The part supports the rotor, locates bearings and the pinion gear, and restores correct alignment and rotation when an original shaft is bent or worn.

Basic installation covers inspecting bearings and the rotor for wear, opening the motor housing, removing the rotor and old shaft, fitting the new shaft with correct bearing seating and endplay, and reassembling. Follow standard motor service practices and fit the correct spare components as required.

In tuning and maintenance the shaft influences gear meshing, bearing load distribution and rotational balance. Replacing a damaged shaft helps reduce vibration, protect bearings and maintain smooth power delivery from the motor to the drivetrain in RC models.