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That is a RBC RF122214PP bearing. I can shoot you a price on Monday when I go back to work if you want or you can search the WEB and I am sure you will find something. That bearing sells for something close to $12.00-$15.00 each retail and I see you can buy that cart for $60.00-80.00 new. That being said those bearings would be a huge upgrade to what is in it now.