3a thread class right-hand 2.3060" overall length 0.3745" bore diameter 20 thread quantity per inch passivate surface treated ball type unf thread series
3a thread class left-hand 2.9620" overall length 0.4995" bore diameter 20 thread quantity per inch passivate surface treated ball type unf thread series
3b thread class right-hand 2.1250" overall length 0.3745" bore diameter 24 thread quantity per inch chromium inner member surface treated ball type unf thread series
bearing heat stabilized to operate ate 350 deg, inner ring extended on flange side by 0.0150 in., flange on outer ring opposite lip, max roller dia variation per bearing 0.00005 in., max roller lg variation per bearing 0.0002 in., totle clearance between roller ends
0.8746" bore diameter integral shields are formed by extending the lands of the inner ring, outer ring fractured at one point, 0.0005 in. to 0.0015 in. radial clearance single row inner ring extended both sides