3b thread class right-hand 1.8445" overall length 0.2495" bore diameter 24 thread quantity per inch plating on comp E52100 inner member only, option lubricating hole through race insert ball type unf thread series
0.2500" first hole diameter 2.8750" overall length running clearance of 0.006 to 0.008 in. over 5.744 to 5.745 in.hub when assembled in. 6.2495 to 6.2505 in. dia bore 17c solid, plain, no outside flanges
3a thread class right-hand 3.0790" overall length 0.4995" bore diameter 20 thread quantity per inch slot 0.1250 in. deep, 0.0740 in. max, 0.0640 in. min w machined at rightangle to longitudinal axis at base of shank chromium inner member surface treated ball type unf thread series