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Message: <blockquote data-quote="alchemysa" data-source="post: 103213" data-attributes="member: 13436">The bearings swivel slightly but you should have no up and down movement. If you have up and down movement its possible the shaft has been spinning in a seized bearing, and has worn. Normally the inner race of the bearing should be locked onto the shaft. The bearings are still available but there are a few different sorts. The best ones have a locking collar. 6brnorma will probably comment on this.The ones in the pics here are not correct but its what I have in mine. Originally they were locked on with Alan screws, but those things are useless so I used some thread (7/16 I think) with a spring washer and locking nut. The threads key slight indents I drilled into the shafts.<a href="http://tinypic.com?ref=2u4it79" target="_blank"><img src="http://i65.tinypic.com/2u4it79.gif" alt="Image and video hosting by TinyPic" class="fr-fic fr-dii fr-draggable " style="" /></a><a href="http://tinypic.com?ref=n381aq" target="_blank"><img src="http://i64.tinypic.com/n381aq.jpg" alt="Image and video hosting by TinyPic" class="fr-fic fr-dii fr-draggable " style="" /></a></blockquote>