The Effect of New Material and Processing Developments on Ball Bearing Fatigue Life 640404

This paper explains the material and processing developments which account for the fatigue life advantages of the NDur-300 and NDur-600 lines of ball bearings recently announced by New Departure. Included in this explanation is a description of the nature of the change in the bearing resulting from the exclusive new process used in both classifications of NDur bearings. The methods of testing are detailed and the results of the testing presented graphically. These results are shown to indicate that the rating claims published for NDur bearings are very conservative.
The article closes with some notes on the methods of assessing the life advantages to be gained through the use of NDur bearings in specific types of applications.


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