Transmission bearings .. sealed or unsealed?

johnbuckley

johnbuckley

Well-known member
Any consensus on longevity of input/main drive bearings ( A 7025 and 7065)? Sealed? Unsealed? One side sealed? If single seal whether best to have the seal on the trans (or as per Vince Falter) on the UJ side?
 
I have heard you can remove the seal on one side without hurting the unit, and causing the other side to leak. Any thoughts?
 
One can remove one of the seals and it will not affect the seal on the other side. Bearings are sold with 1 seal or 2 seals or no seals. They are also sold with or without shields which look like a seal but are not.
 
Take a pocket knife and just pop it out by slipping the knife point under the inner diameter and pry it a little. It should just snap out. You won’t damage anything.
 
Agree with the above comments but would advise to not get Chinese made bearings US bearings are more costly but better quality. No fun pulling a trans out to replace a faulty bearing
 
If you can find,locate&source these following brands: BCA, FAFNIR, FEDERAL, HYATT, L&S ,
Use a dental pick/scribe or " o ring" pick or flat blade screw driver to remove the seal.
 
The open side is always fitted/installed so as that's lubricated by the transmission/engine oil,
The sealed/sheilded side is to prevent foreign matter/objects entering through the bearing into the transmission.
 
Ordsgt said:
Agree with the above comments but would advise to not get Chinese made bearings US bearings are more costly but better quality. No fun pulling a trans out to replace a faulty bearing
Click to expand...

Most don’t drive their cars often enough to make a difference in the country of origin.

I’ve also had great success with Chinese bearings, but they’ve always been properly greased and torqued.
 
Re: Transmission bearings .. sealed or unsealed? Do you also have the BAFFLES

already covered
 
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