# Prediction Method for the Radial Runout of Inner Ring in Cylindrical Roller Bearings

Mathematical Problems in Engineering - Volume 2017 2017, Article ID 6584561, 13 pages - https:-doi.org-10.1155-2017-6584561

Research Article

School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an, China

Henan Key Laboratory for Machinery Design and Transmission System, Henan University of Science and Technology, Luoyang, China

School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang, China

Luoyang LYC Bearings Co., Ltd., State Key Laboratory of Aviation Precision Bearings, Luoyang, China

Correspondence should be addressed to Jishun Li

Received 21 January 2017; Revised 3 April 2017; Accepted 12 April 2017; Published 31 May 2017

Copyright © 2017 Yongjian Yu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The motion error of assembled bearing depends on the geometric profile of bearing components. Therefore, it is crucial to establish the relationship between geometric error of bearing components and motion error of assembled bearing, which contributes to improving the rotational accuracy of assembled bearing in the design and machining of the bearing. The main purpose of this research is to propose an accurate method for predicting the radial runout of inner ring based on the geometrical constraint model of cylindrical roller bearings. In the geometrical constraint model, dimension and form errors in the inner raceway, the outer raceway, and rollers are considered, and the change of contact positions between the raceways and rollers caused by geometric errors of bearing components is taken into account. This method could predict the radial runout of inner ring after bearing components with geometric error are assembled. In order to testify the validity of the proposed prediction method, two particular cases in which the profiles of the inner raceway are circle and ellipse are selected, and the analysis algorithms for the radial runout of inner ring are derived. Two analytical results obtained from the analysis algorithms validate accuracy and effectiveness of the proposed prediction method.

Author: Yongjian Yu, Guoding Chen, Jishun Li, Yujun Xue, and Bitao Pang

Source: https://www.hindawi.com/