Drive Washer 35AX for O.S. Engine - OS23108000  [OS23108000]

Drive Spacer for 35AX Engines

The OS23108000 35AX drive washer from O.S. Engine serves as a compact axial spacer used in drive assemblies that accept the 35AX washer form. It locates at the crankshaft and drive hub junction to control axial clearance and keep components true under load.

Its practical role is to maintain steady spacing between the drive hub and adjacent components, reducing uneven wear and helping the drivetrain run with less vibration. Use the washer when rebuilding a crankshaft or when replacing worn thin shims to recover correct axial clearance.

For experienced hobbyists the fitting sequence is simple: remove the drive hub, record shim positions, replace the old spacer with the 35AX washer, then recheck axial play. Rotate the assembly by hand to confirm smooth operation before final tightening and running the engine.

Not a direct tuning item, consistent spacer thickness nonetheless affects driveline geometry and can have a subtle effect on smoothness and part life in engine-driven RC models.