Load Calculation and Design of Roller Crowning of Truck Hub Bearing

Xintao Xia*, 1, Shujing Dong1, Liming Sun2, Tianju Chen3
1 Henan University of Science and Technology, Luoyang, 471003, P.R. China
2 Luoyang Bearing Research Institute, Luoyang, 471003, P.R. China
3 Pittsburg State University, Pittsburg, KS 66762, USA

© 2015 Xia et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Henan University of Science and Technology, 48 Xiyuan Road, Luoyang, Postcard: 471003, P.R. China; Tel: +86-1394929 7723; E-mail:


Double-row tapered roller bearing 353112 is used in trucks, and the external load and pressure distribution of the bearing are calculated combining with the specific operating conditions. Tapered roller bearings typically employ roller profile modification to equalize the load distribution, minimizing the stress concentration at the roller ends. Doing FEA (finite element analysis) on the contact stress with the changing roller crowning between roller and races, the appropriate roller profile and the crown drop of roller can be achieved. Finally the best control equation of roller crowning is obtained. It has important guiding significance for the improvement of roller crowning design of truck hub bearings.

Keywords: Hub bearings, load distribution, roller crowning, stress analysis.