GT33 Crankshaft Ball Bearing, Low-Friction - OS28330000 by O.S. Engine  [OS28330000]

Replacement Crankshaft Bearing for GT33 Series

This crankshaft ball bearing is an RC-scale replacement part designed for the GT33 engine family. It supports the crankshaft assembly by giving a low-friction rotary interface that helps preserve steady shaft rotation under the normal loads seen in glow RC engines.

When fitting, ensure the bearing seats squarely in the crankcase and is free of grit before assembly. Use a bearing driver or a soft-jawed press to press the unit evenly, avoid striking the race with a hammer, and apply a light coat of engine-safe oil to the shaft to reduce initial start wear.

For maintenance and tuning checks, inspect the bearing for roughness or excess play and replace if noise or binding appears. Keep the surrounding area clean of fuel residue and dirt to prolong service life.