How to Find Out What the Correct Bearings are Needed for a Hub

Question:

I need help cross referencing wheel bearings for a trailer hub

asked by: Chris J

Expert Reply:

To determine what replacement bearings you need for your hub you can either remove the hub and look for the bearing numbers on the side of the bearings or you can take some measurements.

Using a Digital Caliper, like part # PTW80157, you will want to measure your spindle for the locations of the inner bearing, outer bearing, and grease seal sit. You will want to measure to the 3rd decimal place (like 0.725). Once you have those measurements we can then find the appropriate replacement bearings for you.

You can use the attached picture to help you determine where you need to measure. The places to measure are noted as B, C, and D on the photo.

I have also attached a helpful article on wheel bearings that you can check out.

expert reply by: Jon G