Funny you mention the bearings copier addict. I was thinking the same thing.

The LFR use those small common bearings which I stole from a low meter FS534 parts finisher. They looked fine but replaced anyway.

The belt uses a foam roller on one side and heat roller with the standard bushing inside bearing setup. They also looked good but was going to replace anyway but nothing I had matched up with them. I'm sure they are probably used in other K/M fusers, etc but hard to find quickly without a part # available. If I find anything that matches up I will post. Will see how long they last.