Rolling Contact Fatigue Testing of Bearing Steels
Author : J. J. C. Hoo
Publisher : ASTM International
Page : 442 pages
File Size : 17,49 MB
Release : 1982
Category : Technology & Engineering
ISBN : 9780803107120
Author : J. J. C. Hoo
Publisher : ASTM International
Page : 442 pages
File Size : 17,49 MB
Release : 1982
Category : Technology & Engineering
ISBN : 9780803107120
Author :
Publisher :
Page : 417 pages
File Size : 35,70 MB
Release : 1982
Category :
ISBN :
Author : H. Krock
Publisher :
Page : 18 pages
File Size : 13,47 MB
Release : 2002
Category : Bearing fatigue life models
ISBN :
The rolling contact fatigue testing of low oxygen, high quality, rolling bearing steels is a major challenge to steel makers, bearing producers and end users. Material specimen based rolling contact fatigue tests were used for a number of years, mainly as acceptance tests. Often in this type of test, the applied contact stress exceeds the stress normally found in rolling bearing applications and also exceeds the limit stress for rapid cyclic micro-plastic groove formation in the rolling contact. For these reasons the established methods have limited ability to discriminate material quality effects in modern high cleanliness rolling bearing materials. Furthermore, the results of tests based on a material specimen are difficult to translate into life calculation factors for the bearings. In this paper a novel test method is presented and used to determine the effect of steel internal cleanliness on the performance of rolling bearings. To achieve this result considerable care is required in the preparation of the test elements, the selection of the specific test conditions and in the analysis of the results. This work also led to an ability to determine the dependence of steel quality on the steel making processes. Material cleanliness is characterized using the statistics of extreme values of the micro-inclusion size population allowing the steel cleanliness quality rating to be related directly to the fatigue performance of rolling bearings through the introduction of a material cleanliness factor ?. The expected bearing life performance for materials with different inclusion size ratings can thus be calculated. Results correlate well with measurements demonstrating that the quality rating of the material can now be reliably included in standard bearing life calculations.
Author : J. J. C. Hoo
Publisher : ASTM International
Page : 411 pages
File Size : 42,44 MB
Release : 1988
Category : Rolling contact
ISBN : 0803109997
Author : J. J. C. Hoo
Publisher : ASTM International
Page : 517 pages
File Size : 20,96 MB
Release : 1998
Category : Alloys
ISBN : 080312421X
The proceedings of a November 1996 conference in New Orleans, update previous information and present new materials and processing relating to steel for the anti-friction bearing industry. Among other subjects, they cover steel cleanliness and measuring methods, bearing fatigue life, advanced steel
Author : John M. Beswick
Publisher : ASTM International
Page : 264 pages
File Size : 25,69 MB
Release : 2007
Category : Fatigue
ISBN : 0803134916
Author : Hoo JJC Ed
Publisher :
Page : pages
File Size : 46,59 MB
Release : 1982
Category :
ISBN :
Author : J.J.C. Hoo
Publisher :
Page : 417 pages
File Size : 13,68 MB
Release : 1982
Category : Metals
ISBN :
Author : Richard Tourret
Publisher :
Page : 332 pages
File Size : 14,24 MB
Release : 1977
Category : Technology & Engineering
ISBN :
Author : Thomas L. Carter
Publisher :
Page : 58 pages
File Size : 43,34 MB
Release : 1960
Category : Ball-bearings
ISBN :