LI Junning, CHEN Wei*, LV Shaopu, XIE Youbai

(Xi’an Jiaotong University, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an 710049, China)

Abstract: A new skid damage testing system for high speed rolling bearing is developed and used to study bearing skid damage mechanism under the high speed and ultra high speed conditions. This system can simulate the dynamic contact situation of bearing ring and roller by adjusting the various experiment parameters. It can also study the skid damage rules of high speed rolling bearing. The work principle, structure and main functions of this testing system are systematically introduced in this paper. Taking cylindrical roller bearings as an example and by changing the experiment conditions (slip ratio, inner ring speed, radial load and lubrication), the authors have investigated the skid damage rules of high speed rolling bearing. Experimental results show that this system is feasible and effective. This system is convenient and easy to extend, which can provide a support for the design and development of ultra high speed and super precision rolling bearing.

Key words: high speed rolling bearing; skid; damage; lifetime; slip ratio; rotate speed; oil film

E-mail: chenw@mail.xjtu.edu.cn 

Tribology, Vol. 32, Issue 3, 2012, 221~226