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Old 08-15-2010, 12:25 PM   #16
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Quote:
Originally Posted by Klimpen717 View Post
The seals are there to protect the bearing from dirt!
The thing that prevents your engine from sucking in air is another history.
Around the crankshaft the fuel/oil creates a seal that prevents the engine from sucking in air.
+1
Take a look at onroad metal shielded bearings. Usually they are open on the side that faces the engine and have a metal shield on the side that faces the outside of the engine. Hold them against the sun and you can see right thru them...they still work perfectly tho...because of the oil seal between crank and case mentioned above.
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Old 08-15-2010, 12:37 PM   #17
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Novarossi part # 17011

Nobody will dispute that is the best front engine bearing on the market !!!



What he said....
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Old 08-15-2010, 05:55 PM   #18
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Talking Sealed Bearings

I get the example re the shielded bearing.

I would think that the bearings have to be pretty on the mark in order to not allow the crank shaft from hitting the side walls of the engine.

Otherwise, I would imagine the space between block walls and the crank shaft have to be pretty tight.
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