How to Determine What Bearing Buddy Will Fit a Hub

Updated 09/12/2017 | Published 09/10/2017

Question:

Converted two axle EZ loader boat trailer from oil to grease soon after I got it. Want to add bearing buddies. Have some that should be correct according to the bearing number but are was too small to fit after removing the oil oil cap. Is there one size that fits this application or do I need to purchase something to measure the hub ID?

asked by: John R

Expert Reply:

The easiest way to choose the correct Bearing Buddy kit is to measure your hub bore. What you will want to do is use a digital caliper and measure your hub bore (the opening in the hub) to the 3rd decimal place. I have linked our selection of Bearing Buddies for you to filter through once you have measured your hub bore. You will simply need to choose which Bearing Buddy matches up with your hub bore measurement.

For example; the Bearing Buddy Bearing Protectors part # BB1980A-SS are compatible with a hub bore that measures 1.980 inches.

expert reply by: Jon G