If Rayco is like Vermeer (which also uses Link-Belt bearings) there isn't any numbers on them... All bearings subscribe to a standard numbering system though.. I took an old bearing to my local supply house and they measured up everything and looked them up for me. Once they determined the standard numbers, series numbers and size/type needed , I had several mfrs to choose from....Saved a good bit of money ,got a comparable bearing ,and local service..
Just a Hint : It helps to carry a dozen hot doughnuts in for the counter people also..!!!