[wildwestpat]

Hi Michael

The housing for 5xxx bearings is simple as they do not require to be press fitted. The tolerance on the bore of the housing and the shaft are H6 and h6 respectively which means that a tight slip fit and some Locktite would be OK. Here is a GA of the mount I have been using which is a bit more elaborate on a small mill. The estimated load is arround 50Kg. The bearings I am using in these mounts are the sealed RS type.

Keeping it simple the alternatives are flanged deep row ball bearings bearings using a threaded shaft to trap / pre-load the bearings into a simple bore. Then there are a number of improvements right through to matched pairs of high pecision angular contact bearings.

But please do work back from the tolerance requirements of the finished product through the various sources that add errors. Then look at the bearing specs and consider price.

Hope this helps. Regards - Pat