I wouldn't give up on the ceramics just yet.
Use a split bearing puller like Kim shows in an earlier post to remove the top bearing. Chuck up on the armature and polish a few tenths off the shaft so the new bearing will go on easier. Then, while the armature is still in the chuck, use your tailstock to press on the new bearing, using a delrin or wood tool that fits the shaft properly. This will give you a smooth, accurate install simply by cranking in the tailstock. Lube the shaft before pressing on the bearing.
NOTE: I just looked at your disassembly pics & realized the fan is still in place. You'll have to chuck up on the shaft behind the fan - not on armature.
It's time to rebuild a couple of my PC LAMINATE trimmers again. I am wondering if you narrowed down the best bearings for the application yet? I only run mine about 1/3 speed I'm guessing.
You will know when it's time by the vibration or harmonic singing when turning a shaft or butt.
If you rebuild your PC 7310 or your Dewalt D26670 trim router, I have some info.
These are basically the same machine and use most of the same parts.
I just rebuilt my PC 7310 with new bearings and it sounds better than new.
Remove the top cap and the brushes first or you will damage them when you pull out the armature. You will need a T9 spline wrench to remove the brush holders.
The top bearing is a 608Z bearing. This is a roller skate bearing with a metal shield on both sides. It has an 8mm ID and a 22mm OD and is 7mm thick. You need a bearing puller to get it off or you can monkey it off with a vice and 2 big screw drivers. Be careful not to damage the armature or the commutator.
The bottom bearing is a 6002RS bearing. I has rubber seals on both sides. It has a 15mm ID and a 32mm OD and is 9mm thick. It comes out easily after you get the spindle nut off with a pin wrench.
From the parts supply house, the top bearing is about $4 and the bottom bearing is about $10. You can get them both for under $2 each on the internet.
The brushes can only be had from the parts supply houses The bearings go long before the brushes.
have fun
Kim
Hi Kim
I switch to Ridgid 99.00 new , life time warranty . home depot
I have a porta cable trimmer, the trimmer vibrates. < a lot > to the point it vibrated the set screws loose on my lathe. Or it vibrates so bad in my opinion it is unsafe to use...
If someone needs a parts trimmer or is willing to repair this one I want 20 bucks plus shipping.
The ridgid trimmers do not vibrate compared to the porta cable trimmers and they come with rpm speed control built into the trimmer.
Just another option.
MMike
How did you mount the ridgid trimmer????
Kim
Hi Kim
I switch to Ridgid 99.00 new , life time warranty . home depot
I have a porta cable trimmer, the trimmer vibrates. < a lot > to the point it vibrated the set screws loose on my lathe. Or it vibrates so bad in my opinion it is unsafe to use...
If someone needs a parts trimmer or is willing to repair this one I want 20 bucks plus shipping.
The ridgid trimmers do not vibrate compared to the porta cable trimmers and they come with rpm speed control built into the trimmer.
Just another option.
MMike
How did you mount the ridgid trimmer????
Kim