Cylindrical roller bearings with profiled contacting surfaces

13th International Conference on Tribology

Creu, S.S.^1

Mechanical Engineering and Mechatronics Department, Gheorghe Asachi, Technical University of Iai, 61-63 D. Mangeron Bv., Iai

700050, Romania^1

关键词: Contacting surfaces;    Elastic shakedown;    Elastic-Plastic;    Loading operations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/174/1/012001/pdf
DOI  :  10.1088/1757-899X/174/1/012001

来源: IOP

【 摘 要 】

An initial loading of cylindrical roller bearings in the elastic-plastic domain was performed to induce elastic shakedown phenomena able to change the basic profiles of both, rollers and raceways, which endorses a different value for the basic reference rating life. Fatigue life tests carried out on four lots of NJ206 cylindrical roller bearings revealed much higher values of L10and Lmcriteria for the bearings lots which experienced a suitable initial loading operation in the elastic-plastic domain. The reference rating lives, evaluated by using the lamina technique, confirmed the superiority of bearings lots which undergone an appropriate primary loading in the elastic-plastic domain.