O.S. Engine OS28330000 Crankshaft Ball Bearing R GT33  [OS28330000]

Crankshaft Ball Bearing for GT33 Engines

This crankshaft ball bearing is an RC-scale replacement part intended for the GT33 series engine family. The component supports the crankshaft assembly by providing a low-friction rotary interface, helping maintain consistent shaft rotation under normal operating loads typical of glow RC engines.

Installation focuses on correct seating in the crankcase and ensuring the bearing is free of debris before assembly. Use appropriate hand tools to press the bearing evenly, avoid hammer impacts, and apply a small amount of engine-safe lubricant to the shaft surfaces during reassembly to prevent initial dry start wear.

For tuning and maintenance, inspect the bearing periodically for roughness or excessive play, replace if noise or binding appears, and keep the surrounding area free from fuel residue and dirt to extend service life.