Quote:
Originally Posted by JRTJH
Weldon,
I could be wrong, but those seals look like a "single lip seal" not a "double lip seal" which is used on the EZ Lube axles. There is an excellent video on the e-trailer website that explains the seal and how it functions: https://www.etrailer.com/Trailer-Bea...kaAhL8EALw_wcB
What you have might be OK for a boat trailer, but I'd be concerned with it on an axle with brakes. From the photos you posted, I don't see the spring that keeps the seal in place and prevents it from folding over against itself... Maybe it's the angle of the photos, but I don't think those are the correct seals. They are the correct measurements but not "double lip seals"...
ADDED: Here are cross section diagrams of a single lip and a double lip seal. The single lip (bottom drawing) is rated at 3PSI and the double lip (top drawing) is rated at 7PSI. That extra "grease retention capability" (greater PSI) is vital at keeping your new brake shoes "clean and grease free"...
SECOND ADD: The Timken 442251 seal (number on the box in your photo) is a "single lip seal" Check the description specs: https://www.motionindustries.com/products/sku/01308230
and the SKF 17146 is also a "single lip seal": https://www.motionindustries.com/products/sku/01299847. |
Thanks john. You're right...there is no spring. I found it on the others that I took off but not on those I put on my hubs. I'll order double lip seals. That's exactly what i needed to know. Only $20 wasted so I'm fine with that. Btw my hubs do have the easy grease zirk but i'd feel better knowing I had a better product installed.