RBS stocks a large selection of bearings for your supercharger and idler pulley needs. These are single row ball bearings that are typically used in street to light race blower applications or double upped and used in competition idler pulleys. They are sealed, pre-lubed and will provide years of trouble free service on your supercharger or idler pulley. Fits most GM type roots blowers 3-71 thru 8-71. Blowers include BDS, Blower Shop, Hampton, Littlefield, Kuhl, Mooneyham, Bowers, Donovan, Danakes but not SSI, DMPE, Fowler, Kobelco, Hammer, or Chuck Ford blowers.
Bearing is also suited well for idler pulleys that use dual 6205 bearings such as Littlefield, BDS, RCD and many more.
Measurements are 2.048" O.D. x .590" thick with an .985" I.D. Bearings are sold individually.