8.00mm bore diameter natural color shields also 100 pct noise tested for motor bearing quality also 100 pct inspected to eliminate bearing w/cage windup non-loading groove, non-separable
0.3115" overall width 0.4998" bore diameter inner ring radial runout 0.0001 in. also outer ring radial runout 0.0002 in. non-loading groove, non-separable