3a thread class left-hand 3.1150" overall length 0.3125" bore diameter 20 thread quantity per inch grease fitting located on lower half of bearing cadmium all external/exposed metal surfaces surface treated single row, concave rollers unjf thread series
0.3837" overall width 0.6690" bore diameter cross corner tolerance held to 0.3857 in. max to 0.3837 in. min; selected, classified non-loading groove, non-separable
0.1969" overall width 0.1575" bore diameter counterbored ball raceway, bore calibrated from 0.1574 in. max to 0.1573 in. min, selected, calssified inner ring, ball
1.9375" overall width 2.3622" bore diameter 250a single row, non-locating, two lip inner ring, cylindrical outer ring with two roller retainment rings on outer, non-separable