12.0mm overall width 20.0mm bore diameter radial internal clearance C2 fit for minimized axial play; item is 25 percent pack mobile 28 grease; b-10 life of 1000 hours at 12, 000 rpm, (1 hourat 15, 000 rpm) with 10 lbs radial loadand 0 to 10 lbs axiel load, at 158 degrees f. anbient; item is used on the f-16 acft loading groove, non-separable