Crankshaft Ball Bearing for R GT60 - O.S. Engine OS28631000  [OS28631000]

Bearing Details for R GT60 Crankshafts

The O.S. Engine OS28631000 is produced as the replacement crankshaft bearing marked R GT60, suitable for matched R GT60 crankshaft assemblies. It provides the rolling interface that keeps the crankshaft turning freely and corrects degraded rotation caused by worn bearings.

Install by removing the necessary engine covers to access the crankcase, inspect the crank journal and seating area for marks or contamination, and press the bearing into its race with steady, even pressure until it seats fully. After fitting, rotate the crankshaft and confirm there is no binding and that axial clearance is acceptable prior to final assembly.

In practical tuning, a serviceable bearing reduces internal friction and helps maintain consistent engine response under varying loads. Regular inspection and cleaning will extend service life and help maintain predictable engine behavior.