I have two good bearings and two crappy bearings that have cheap castings and get stuck when turning. 4 serviceable bearings are expected. Also, the seller's terms say I have to pay the return postage. After posting this review, I was contacted by the seller who sent me two replacement bearings. I was really looking forward to them until they arrived. The seller sent two more crappy bearings. If I could rate it zero stars I would.