Hi guys,
To be brutally honest these rollers if not left out in the elements really don't need any major maintenance and thus there's no need to pull them apart unnecessarily.
The original bearings fitted are not precision bearings, just trolley bearings that are not directly replaceable, but if they have to be then they are now being replaced with a sleeved more common high speed bearing so that they can fit into the original carriers.
In all the years that I've been servicing 45's and that's going back to the early 1980's, I've never had to replace a rear roller bearing.
Cheers,
BB.
