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.
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...
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.
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.
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.
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
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
A half century ago, cars were still built by people, not robots. Even on some of the country’s longest assembly lines, human workers installed windows, doors, hoods, engines, windshields, and batteries, with no robotic aid.
DuPont's Hytrel elastomer long used in automotive applications has been used to improve the way marine mooring lines are connected to things like fish farms, oil & gas installations, buoys, and wave energy devices. The new bellow design of the Dynamic Tethers wave protection system acts like a shock absorber, reducing peak loads as much as 70%.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.