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

35AX Drive Washer for RC Engines

This O.S. Engine OS23108000 35AX drive washer is an RC-scale axial spacer designed for use in O.S. Engine 35AX-compatible drive assemblies. It sits at the crankshaft to hub junction to control endplay and keep drive components aligned during operation.

In real-world use the washer preserves consistent clearance between the drive hub and neighbouring parts, helping to reduce uneven wear and support a smoother driveline. Fit it when reassembling a crankshaft or replacing worn thin spacers to restore correct axial clearance.

Installation is straightforward for experienced RC technicians: remove the drive hub, note alignment and existing shims, fit the 35AX washer, and recheck axial play before final tightening. Verify fitment against the parts already in the assembly and rotate the unit by hand to confirm smooth movement before running the engine.

Although not a tuning component, consistent spacer thickness influences driveline geometry and can indirectly improve smoothness and longevity of engine-driven parts in RC models.