petalpop wrote:if i remember correctly from way back when i used to recon them i would leave them submerged in 3in1 oil overnight and never had a problem
Blimey Hoover 1346?................Eeeee! It takes me back.....happy days!
Well 3 in 1 won't do any harm I guess? The rear bearing is a phosphor bronze swivelled bush held in place with a gun metal washer, under that is a cotton pad which is usually "pre-lubricated" in nothing more elaborate that 3 in 1 oil anyway.
The replacement part is still available and cheap enough to replace by the way. But if the armature end is scored in any way, both the armature and the bearing will need replacing.
The front bearing cannot be eaily lubricated, back when Adam was a lad we had a special grease gun that could force grease around the sleeve and into the shield. Again replacement being the better option if it doesn't run smooth.
By the way, A long while back I've used your old Keymatic pictures from your website Simon.......Thanks for that and a good site for old timers like me to reflect on....Cheers!