Interesting, I just disassembled mine to wash the bag since the vacuum works perfect, but smells due to 15 or so years of filtering air. I couldn't get the nut off the fan attached to the motor, not much room and didn't want to break it. Bearings are fine so just cleaned it all real good. These Orecks are like old Snapper mowers or coleman stoves, quality made!
Oreck vacuums belong to the category what I definitely like. Simple lightweight direct air upright. Even the smaller Oreck is excellent, but this is definitely more desirable. Only downside is that especially the smaller model is super noisy. But otherwise fantastic design. I can't wait to see more videos of this 👌
Years ago, I worked in a piano refurbishing shop and learned a good trick to use with screws. Put the screw in the hole and turn it backwards with a little pressure pushing it it. 9 times out of 10 you will feel and hear a little click as the screw finds the threads already cut in the hole. Then when you tighten it it uses the threads already cut in the material. This puts less wear on the screw hole and keeps them from getting roached. Just sayin' Mike
"The ball bearing cage (also known as a ball bearing retainer or ball separator - these are used interchangeably), is the component in a ball bearing that separates the balls, maintains the balls symmetrical radial spacing, and in most cases, holds the bearings together."
My newer 21 has a cracked housing, trying to get fan off but nut is seated flush so will play with it but idea is to use this motor in another model, one with a smaller fan housing if that fin fits the shaft. Hopefully I get the wiring correct. LOL
Sir I really do appreciate your videos. The camera work is good, the content is great...but with respect the audio between comments it is distracting at best. Not your problem at all of course...but figured I'd mention it. Please feel free to ignore :)