Model: R-1904SD620S1A3P1021L02EB

Special Features:

Kstabilized for operation at m65 degrees f to p350 degrees f, retainer od concentric w/bore of inner ring within 0.002in. To 0.005 in. Tir, faces of inner ring sq w/bore within 0.0004 in. Tir, faces of outer ring sq w/od within 0.0004 in. Tir, parallelism of outer and inner ring sides within 0.0004 in. Tir, rockwell hardness rating of ball 58.0 to 62.0, inner and outer rings 58.0 to 64.0 c scale, retainer 55.0 to 80.0 b scale, inner and outer ring raceways 5 to 8 uin aa, balls 1 uin aa, od surface of outer ring 15 to 20 uin aa, bore surface of inner ring 16 to 20 uin aa, cage pockets and retainer bore surface 30 to 125 uin aa, inner ring lips 10 to 20 uin aa, the -04 bearing has a different style outer ring than the -03 and -05 bearing

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.