Trillium 4500 Wheel Bearing Seals - Fiberglass RV


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Old 05-21-2015, 06:46 PM   #1
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Name: Michael
Trailer: Trillium 4500
Quebec
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Trillium 4500 Wheel Bearing Seals

I need to replace the inner grease seals on my wheel hubs, but don't know what size to get. I was repacking the wheel bearings today and noticed grease had leaked out. On closer inspection I could see the seal had totally deteriorated. Can anyone on the forum enlighten me on what to get...?

Thanks in advance!
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Old 05-21-2015, 09:22 PM   #2
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Name: Jack L
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Your seals should have a number on the metal face. It may be rusty or dirty but usually it can be read. It can also be measured. Any good auto parts store will be able to help.
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Old 05-22-2015, 07:12 AM   #3
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Thanks Jack! The seal was mangled, but I'll have a good look at it for a number. Perhaps I'll pull off the other hub and see if I can find the number on that side.
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Old 05-22-2015, 10:21 AM   #4
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What ever you do, stay away from bearing buddies. More about why later.
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Old 05-22-2015, 02:36 PM   #5
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Good news, I'm all sealed and rolling again. For future reference for everyone, the seals I used are made by Timken, part #442251, size is 1.718 x 2.561 x 0.500, cost in Canada around $8 each. In the U.S., probably about half that!

So thanks all for your friendly advice! It hard to believe we once lived in caves and the internet didn't exist...
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Old 05-25-2015, 12:39 PM   #6
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Thanks that is helpful part no

Could someone please post up the correct wheel bearing size for 1300 / 4500 trillium trailer w stock axle? I'm going to town right now to pick up 2 of these seals ....I should know what size bearing but don't, I'll try search now too. Just thought having both part # handy for the Napa trip would be helpful for all.
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Old 05-25-2015, 01:56 PM   #7
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Wish I'd seen your post earlier John when my hub was all apart as I might have been able to read the numbers off my bearings for you. I should have done it anyway now that I think of it. Hopefully we'll get a reply here...
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Old 05-25-2015, 10:41 PM   #8
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Well that's ok Michael. I'll either take mine apart and read the part # and post up or someone will post up. The Timken part you posted crossed to an SKF part ...I'll post that tomorrow.
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Old 05-26-2015, 04:24 PM   #9
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Inner grease seal SKF / NAPA part No 17146. Around $12 each Canadian from Napa.
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Old 05-31-2015, 09:33 PM   #10
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Trillium 4500 Wheel Bearing Seals

Happens I just measured the spindle on my Trillium 1300 today. The 1.375" is the inner bearing and the 1.060 is the outer bearing. 1.720 is the seal surface. These are measured on calipers so expect a thou or two error.
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Old 05-31-2015, 09:49 PM   #11
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Oops, sorry I just realized yours is a 4500 and I don't know if they are the same.


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