I found a Youtube video from AppliancePartsPros that explained how to replace the bearings. The video was excellent and allowed me to perform the service myself. It gave me a good idea of what tools I would need and how long it would take. The repair would've definitely been much more difficult without the video.
The longest time was spent removing the old bearing collar as the inner part of the old bearing had totally disintegrated. I ordered the rotor assembly after initially ordering the replacement bearings. When I removed the rotor, I discovered several of the magnets had been damaged when the old bearing failed.
We had a home appliance protection plan from one of utilities. I initially called them for service but they refused to do the repair as it would've taken too much time and cost too much for parts. I don't know where they were getting their parts from, but the parts from AppliancePartsPros were about a quarter of the cost of what the service company estimated. Needless to say, I cancelled the appliance protection plan. I've ordered parts for other appliances online but from now on, I'm ordering from AppliancePartsPros.