This site may be of interest/help. It has a large number of ball/roller, sleeve, etc. bearings with downloadable CAD files in a number of 2 & 3 d formats in both inch and metric sizes.
formatting link
-- Unka George (George McDuffee) .............................. The past is a foreign country; they do things differently there. L. P. Hartley (1895-1972), British author. The Go-Between, Prologue (1953).