HOw do I change the bairing on the drum R - Washing Machines

You didn't mention brand, but that wont matter much.. This is big job. you have to tear down the entire machine from the front and back, remove the front of tub, remove the bolt holding shaft in back of drum, beat or pull out the inner basket and shaft out of damaged rusty bearings, then, depending on model, you either have to pull and replace bearings and seals in outer tub, or replace the entire outer tub with bearings and seals pre-installed by factory. If you have manual, it takes about 4-5 hours first time. Experienced techs can get it down to 1.5-2hrs. But regardless, its a big job.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/perry_14036f9bc71cde6a