3a thread class right-hand 1.7550" overall length 0.1895" bore diameter 20 thread quantity per inch chromium inner member surface treated ball type unf thread series
2.7187" outside diameter same as style 31 except as modified, flat bearing surface between keys 2.6250 in.od, 0.062 in.radius at bottom of key in lieu of chamfer round w/round keys
3a thread class right-hand 3.6875" overall length 0.3120" bore diameter 16 thread quantity per inch keyway length of threaded shank 0.095 in. wide shouldered ball type unc thread series
24.0mm overall width 70.0mm bore diameter 250c single row, non-locating, cylindrical inner ring, cylindrical outer ring with two roller retainment rings on outer, separable
1.1875" overall width 45.00mm bore diameter 0.2656 in. diameter hole located at midpoint between the two rows of ball at any point circumferentially 28b loading groove, non-separable
