Vintage drive wheel and gear. Drive wheels like this were commonly found on riding mowers, motorized utility carts...ect..
9" rim. 7" gear. 3/4" dia hub size.
Note before and after photos. I took this apart and cleaned and sanded it lightly. Gave rim and gear 2 coats of white primer plus one coat of red on the gear. Installed new grease zerk.
Looks like new.