Originally purchased 2 mounted bearings. When installing them I found 1 of the bearings wasn't straight in the housing. I then purchased 3 more --I replacement and 2 more for another project. Used one of the new bearing to complete original project. When checking other 2 new bearings they have same issue as before --not sitting straight in housing. I believe you are have a quality problem. After the holiday I will be calling you for replacements. Peter Conley