18.0mm overall width 55.0mm bore diameter 3 holes equally spaced on outer ring located 0.255 in. min, 0.265 in. max from one face to centerline of hole 252a single row, non-locating, two lip inner ring, cylindrical outer ring, separable
14.0mm overall width 20.0mm bore diameter slot in edge of outer ring 0.3650 in. min 0.3850 in. max wide 252e single row, one-direction locating, two lip inner ring, one lip outer ring, separable
Used on acft eng tf-30. 1.0186" overall width 2.5588" bore diameter dia of inner ring is 0.9477 in. min 0.9487 in. max; silver plate cage 0.001-0.002 in. thk per ams 2412 on land riding surf 256a single row, one-direction locating, one lip inner ring, two lip outer ring, roller retainment ring on inner ring, non-separable
4.2500" overall width 190.0mm bore diameter 250c single row, non-locating, cylindrical inner ring, cylindrical outer ring with two roller retainment rings on outer, separable
33.00mm overall width 65.0mm bore diameter 254a single row, one-direction locating, two lip inner ring, one lip outer ring with one roller retainment ring on outer, non-separable
