Weird round thing

[relichunters]

Found this is a cw historic area, it was shallow so isn't related. It's now a brand new school that sits on the land. It isn't a washer, too thick and has grooves on the side it appears. Hard to tell if it's a perfect circle or not. Any ideas? It's about the exact size of a half dollar. Appears to be a metal rather than iron.

 

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[ivan salis]

a small pulley of some sort

 

[turtlefoot13]

Just a far out guess, but it looks like a bearing of some sort to me.

Doug

http://tinyurl.com/29mlm3h

 

[Monty]

I was thinking bearing too. Monty

 

[vayank54]

Is the center the same metal as the rest of it. It looks like there might be a bearing in the center that the rest of the disc would turn on.

 

[Blacksheep]

Reminds me of vintage furniture casters.

 

[seadoodiver]

Looks like a wheel bearing, the kind you would find on the bottom of a sliding glass door that helps roll it in its track.

Jeff

 

[bradyboy]

IM going with a wheel bearing but more on the industrial side
Ive seen these on band saws
Brady

 

[Bigcypresshunter]

Could it be a clutch release bearing?

ADDED: sorry same pic turtlefoot posted.

 

[Blacksheep]

Curious if this is actually a bearing as most modern bearings are made from metals that do not rust, even the cage (if used). The center hole diameter is also rather small but does look like its a different color as if made of brass (inserted bushing?)

 

[relichunters]

I can try to get some more rust off of it, if that would help?

 

[Blacksheep]

I can try to get some more rust off of it, if that would help?

If your comfortable removing a bit of the gunk it may help in a positive I.D. Perhaps holding it under hot water and using your thumb
to gently rub a bit off might be enough.

 

[relichunters]

I guess I could do that, I was thinking a hammer and a chisel.

 

[Bigcypresshunter]

I think electrolysis is the best method for ferrous metal.

 

[Blacksheep]

I guess I could do that, I was thinking a hammer and a chisel.

BCH's suggestion may be better, I only suggested water/thumb as it looks flaky enough to remove a bit without damage. You never know
what may be hidden underneath!

 

[Rmeav8r]

Looks like a Thrust Washer for a wheel bearing. Possibly on a cart or bicycle.