Model: 452978

55.00 millimeters bore diameter, 90.00 millimeters overall outside diameter, 18.00 millimeters outer ring width, 22.00 millimeters inner ring width.

Special Features:

Max ball diameter variation in any one bearing 0.000020 in.; stabilized for operation at 250 degrees f; max surface finish, id of inner ring and od outer ring 16 microinches aa ball pocket 30 microinches aa, retainer land riding surface 50 microinches aa inner and outer raceways 13 microinches aa; puller groove located on inner ring, 0.070 in. To 0.090 in. Deep, 0.070 in. To 0.090 in. W, located 0.070 in. To 0.090 in. From extended end

Properties:

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.