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Greg M. Jung
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Platinum
No Lubrication
Greg M. Jung   6/29/2013 7:55:46 PM
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No lubrication needed with these types of bearings is a key feature.  Dust and contaminates will eventually settle on the operating surfaces and cause performance degradation.  This feature (along with preventing food contamination) is an important advantage with this product over lubricated bearings.

Nancy Golden
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Platinum
cost comparison
Nancy Golden   6/30/2013 4:42:35 PM
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This is a very interesting article on plastic ball bearings...from what I understand they are also lighter and quieter than other types. I wonder what the cost comparison is regarding steel or ceramic ball bearings but you would also have to factor in the plastic bearings comparitively lower maintenance and longer expected cycles into the equation...

56ml
User Rank
Iron
Bushings
56ml   7/1/2013 9:57:51 AM
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I've used Igus.  They are plastic bushings, which is as good as traditionsal bearings in some applications.  That's why there was a comparison with bronze "bearings" in the article.

bobjengr
User Rank
Platinum
BOTTLES UP
bobjengr   7/1/2013 4:26:16 PM
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Very informative post Michael.  One of the most difficult consulting jobs I have ever had was specifying bearings for conveyors used in a chain of bakeries. The issue was sugar granules getting into the bearing components and creating a remarkably short bearing life.  Sealed bearings did not seem to do the job adequately.   For this one department, I did specify a polymer.    That saved the day.  Again, very good post. Good information.

William K.
User Rank
Platinum
Plastic bearings instead of metal bearings.
William K.   7/1/2013 7:54:26 PM
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Plastic bearings do offer very real advantages in some applications, but it is absolutely vital to assure that the bearing selected is adequate for the application. Of course, that is true with all bearing types, but sometimes the failure of an incorrectly applied plastic bearing can be quite impressive, even spectacular. So just as with other types of bearings, the application is not a trivial matter. The correct selection will assure satisfactory performance. 

The resistance to water and other liquids that are quite hard on regular bearings can be a very big benefit.

Cabe Atwell
User Rank
Blogger
Re: Plastic bearings instead of metal bearings.
Cabe Atwell   7/31/2013 7:21:59 PM
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Cost effective, robust and easy to manufacture? What's not to like but like, however I agree with William in that it depends on the application as well as the environment on which type of bearing works best.

Ann R. Thryft
User Rank
Blogger
Re: Plastic bearings instead of metal bearings.
Ann R. Thryft   8/21/2013 8:04:21 PM
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Another place these plastic bearings are being used is in a concept car, the Personal Transport Vehicle by Redbud Technology
http://www.redbudtechnologyllc.com/3.html
according to an igus press release I just saw here
http://igus.com/Corporate/Press/5536/student-built-personal-transport-vehicle-uses-plastic-bearings

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