You can use any brand name bearing ie timkin etal. (I think Timkin was OEM) A bearing house can match the old one by number or by taking a measurement. The bearing house will also be less expensive than a parts store. Change the race with the bearing. Use a punch to remove the old race. Use wood to install the new race. Go to the store & look at a new bearing so you have a better idea of what they are supposed to be like. Also, you need to "pack" grease into the new bearing, not simply smear grease on the outside. Put a dab of grease in the palm of your hand. Press the bearing into the grease forcing grease into the bearing. Continue until grease is in all of the bearings. Google for more clear instructions.