Ms290 bearings

Madmantrapper

Madmantrapper

ArboristSite Lurker
Joined
Mar 13, 2020
Messages
20
Location
Maryland
I have new crank bearings but they are not sealed on the outboard side like the originals. Can I use them? How does the crank seal get lubed if the bearing are shielded? I notice in some of the ads for the bearing and crank assemblies the bearings are not shielded.
 

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