Tolerance Analysis of Cylindrical Roller Bearing under Combined Radial and Axial Loads. (7th December 2022)

• Record Type: Journal Article
• Authors: Wang, Zhijian; Lv, Xue; Song, Jiawei
• Other Names: Khan Umar Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2022(2022)
• Publication Date: 2022-12-07
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2022/9233627
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : In order to analyze the influence of tolerance values of key parameters for cylindrical roller bearings under combined axial and radial loads, a coupled model, incorporating a dynamic model of cylindrical roller bearings, contact model, and fatigue life model, is developed to investigate the effect of flange angle, roller-end radius, interval of roller length gauge, and roller profile on contact performance and fatigue life. The results show that the grouping design of flange angle and roller-end radius in the tolerance range was helpful for reducing contact ellipse truncation. The difference of the roller length would change the axial load distribution of the bearings. For the longest roller located in the bottom position, the bigger the difference, the bigger the roller tilt angle and carried-axial load. The (0, +2.5 μ m) tolerance range of the crown drop can limit the difference of the fatigue life within 20% in the current analysis.