Rubber sealed bearings

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Sidewinder Jerry

Well-Known Member
Dec 19, 2011
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Rockwood, TN
Performance wise there's little difference. The advantage of a rubber seal is it can be removed in order to add fresh grease. A metal seal is good where high heat is present. However; once dry they have to be relpaced.
 

Niki420

New Member
Oct 28, 2024
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If someone added grease as often as needed would they still dry out at some point, or is the grease enough to keep them from drying out?
 

wrench

Well-Known Member
Aug 20, 2019
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So Cal
I bought sealed bearings from VXB bearing in LA Ca. and to my surprise the bearings hardly had any grease in them - probably about a bb size amount of grease

I put the bearings in a rear wheel hub and after a few rides I could hear the rear wheel squeaking,
I inspected the bearings, removing the rubber seal to find what looked like no grease in the bearing,
DSCF1923.JPG

I popped the rubber seal off another new bearing and it only had a bb size of grease in it
Obviously not enough grease ,
DSCF1920.JPG

I added grease to all the bearings I bought and now I'm going to make it a common practice to check/add grease to all sealed bearings I buy no matter who the manufacturer is
DSCF1921.JPG


Popped the seals back on and now i know the new bearings have enough grease
DSCF1922.JPG
 
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