Cleaning up linear bearings?

[sp1nm0nkey]

So at the local scrap yard I found a pile of 12 Thompson linear bearings for 1/2 inch shaft. They were pretty dirty, and they had a little rust on the outside, but they were absolutely packed with grease on the inside. I figured for the $1.50 each he wanted for them I could take a chance. I put them on the shaft I got with them and measured maybe within a mil of deflection. How would you guys recommend cleaning out the grime? Right now I'm just using citrus cleaner and have gotten them such that I can push the balls around in the races no problem, but they're still a little chunky. Anything you guys would recommend?

[rustamd]

i have used brake cleaner to get grease out of the thk style trucks before than put oil on them.. Not sure if thats any help to you...

[the4thseal]

there should be no deflection especial under hand forces......you might just want to replace the races.....you got a nice price though.

[CarbideBob]

I use mineral spirits, lacquer thinner, WD-40, then add new grease.

[millminer]

Boil them, then dry in an oven.
Pack with grease, end of problem.

[sp1nm0nkey]

What should I boil them in? I've used peanut oil to dissolve loctite.

[millminer]

Hi, Spinmonkey,
Hang each one from cord, place in boiling water, move them about in the water to drive out the grease and dirt.
Take them out, let them drain, place in a warm oven , leave for an hour.

Pack them with new grease.

They won't come to any harm in water because they are not left to rust...time period too short.

Try one as a test, you will be surprised how well it works.

Regards, Gordon.

[bluejay_ca]

I get used open face 3/4" thomson bearings by the sh!tload for free. They come from a industry which replaces dozens every six months regardless. I soak in heated citric degreaser then break clean, use a light oil till they run smooth.

[the4thseal]

hey bluejay
you want to send me some if that 3/4 Thomson free stuff ...i could sure use some. you are a lucky man.!!!!!!!!!!!!!!!!!!!!!!!!!