How to Determine the Correct Size of Double-Lip Grease Seal for Jet Ski Trailer

Question:

I would like to get some double lip grease seals for my jet ski trailer. My axle size is 11/16. That is the size bearings that I use. Is there any other info that you need to help you get the right part? Thanks

asked by: George

Expert Reply:

In order to get the proper seals for you, I'll need the reference number off the inner bearing and the diameter of the spindle that the inside of the seal rides on. If you can't find the reference number on the bearing, use an accurate measuring device like a digital caliper to measure the inside dimension of the bearing. A ruler or tape measure isn't accurate enough, we'll need the measurement to the second decimal place (hundredth of an inch).

With this information, I'd be happy to look for a replacement grease seal for you.

expert reply by: Mike L