RBS stocks a large selection of bearings for your supercharger and idler pulley needs. These are single row ball bearings that are typically double upped and used in competition idler pulleys.
Bearings are sealed, pre-lubed and will provide years of trouble free service on your idler pulley.
Measurements are 1.850" O.D. x .472" thick with an .985" I.D. Bearings are sold individually.
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