I ordered 2 of the identical bearings however I received one with a id of 1-5/8†and the other was closer to 1-3/4â€. Also the bolt holes on the flange in the diagram said 1/2†but they are 5/8â€. I didn’t make a complaint because it wasn’t detrimental and I made them work. However it was disappointing that I did not receive what I ordered.