Inch bore ball bearing 6205-2RS-1", 6205-1" 2RS.
6205-1" 2RS (6205-2RS-1") made of chrome steel 100Cr6 material for races and balls.
ID 1" bore(25.4 mm) * OD 52 mm * W 15 mm.
ISO P0 / ABEC-1 grade.