HMMMMM....

[thedukeofdelaware]

3.25 in diameter. ?

 

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[cj74]

Looks to be possibly be some sort of pulley or dampener from an engine maybe. Honestly, it looks like a harmonic balancer (sp).

 

[Plug N Play]

six lug hub ? Very small, not sure what for.

 

[sutphin]

UNIVERSAL DOOR KNOB PLATE>

 

[smokeythecat]

May be off an old Gravely tractor. We had one once.

 

[Retired Fire]

Mower Shaft Support from a lawn mower deck.

 

[4x4x4]

3.25 O.D..... What's the appx.I.D.?

 

[marion moore]

Looks like a pipe flange, but the opposite of the rust, why is it so clean where the flange lip would be. It looks like something is broken off. Thanks marion

 

[nhbenz]

why is it so clean where the flange lip would be

It appears to have a bronze bushing inserted from that side.

 

[Icewing]

Looks like a water pump hub, where the fan clutch would mount.

https://www.madisontractor.com/341105r1-hub-water-pump.html

 

[cudamark]

Where was it found? That might give us a clue. It's not a drive hub (no splines or keyway), so, it appears to be something that spun on a shaft. Maybe had a gear attached?