Coated main and rod bearings

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Coated main and rod bearings

Post  XEngr on February 7th 2012, 10:14 am

Seems like the coated bearings have been on the market long enough now that there should be some real world experience. Each bearing manufacturer looks like they have a slightly different coating or application technology. Any advice out there on sources of bearings or preferred brands?

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Re: Coated main and rod bearings

Post  Lem Evans on February 7th 2012, 10:33 am

The Calico coatings are very good...i'm sure their are others that are too.

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Re: Coated main and rod bearings

Post  LivermoreDave on February 8th 2012, 8:06 pm

As LivermoreLem replied of Calico, I too have experienced excellent service from Calico's coating. My applications are not high power units, but we do get two to three years service from an engine before we can afford to freshen it! The coating's appearance looks great at those (previously mentioned) intervals. I'm not educated of bearing life and should explain I'm absent of mind which works a bearing harder, engine power or engine cycles. Coated bearings are pricey. My suggestion is do your homework with an uncoated bearing that's agreeable with your application, then have it coated or seek coated versions of the same bearing. Calico's suggest their coating takes up about .0003" to .0004" of bearing shell thickness per set (2 halves).

JMO,
Dave.

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