25.0mm overall width 75.0mm bore diameter 1 drive point hole in center of outer ring 0.3125 in. dia 0.1000 deep 252a single row, non-locating, two lip inner ring, cylindrical outer ring, separable
0.9005" overall width 2.5585" bore diameter outer ring has snap 256a single row, one-direction locating, one lip inner ring, two lip outer ring, roller retainment ring on inner ring, non-separable