0.7200" overall width 3.9997" bore diameter etch v on bores varnish retainer surface treated 92b counterbored outer rings, non-separable, back to back mounting
15.0mm overall width 25.00mm bore diameter pair of bearings back to back mounting, oil groove on trust face of each bearing, oil grooves to be diametrically opposite when bearings are mounted 90a universal ground faces, counterbored outer ring, non-separable
3.1396" overall width 1.5115" bore diameter retainer silver plate per AMS2412, no strike metal reqd, bake 475-500f for 2hrs to check for bond 92a non-loading groove, non-separable, tandem mounting
0.5000" overall width 1.3122" bore diameter radial runout 0.0003 in. inner ring, 0.0004 in. outer ring, contact angle over 25 degrees 92b counterbored outer rings, non-separable, back to back mounting
0.3125" overall width 0.3750" bore diameter 10 gm cm starting torque with 8 to 12 lb preload, 2 drops of specified lubricant in each bearing using a no. 26 hypodermic needle, bore 92c counterbored outer rings, non-separable, face to face mounting
