Hello Steven, thanks for reaching out. We do offer a few bearings with a 1.25" ID but sadly there are no hubs made for a 1.25" straight spindle. A lot of older trailers use bearing combinations or hubs that are now obsolete, and it sounds like this is the case with you 1941 power company trailer. It is just too old and you will likely have a very hard time finding parts going forward.
Replacing the spindles, or replacing the axle with something more standard would be the next thing we... view full answer...