How to Determine Correct Grease Seals for 1959 Sea Breeze 5th Wheel Trailer

Updated 05/23/2016 | Published 05/17/2016

Products Featured in This Question

Grease Seal - Double Lip - 21325

(784)

$20.61

4" Carbon Fiber Digital Caliper

(26)

$12.32

Question:

What seal fits a 12 inch Dexter trailer axle? They are 4000 lb axles on a 1959 Sea Breeze 5th wheel trailer.

asked by: GRAY T

Expert Reply:

I don't have a reference guide to provide me with that information, but if you can get me the diameter of the inner hub bore and the diameter of the spindle surface where the seal rides, I can recommend a seal for you, if one's available.

When the diameter of the hub bore and the seal journal surface of the spindle is measured, the dimension needs to be accurate to 3 decimal places, so using a digital caliper like # PTW80157 is recommended. I've provided photo for you showing these dimensions.

expert reply by: Mike L