LOAD MEASURING DEVICE FOR ROLLING BEARING UNIT

PROBLEM TO BE SOLVED: To provide a structure for accurately determining load and moment of each direction by eliminating the influence of crosstalk. SOLUTION: Theoretical contact angle of each rolling element related to the contact cross section of each rolling element varying based on loads of three directions and moments of two directions and theoretical total approach amount of an outer ring and an inner ring are determined for each rolling element. Based on the theoretical total approach amount and the rigidity of a rolling contact section related to each rolling element, a contact load occurring in the rolling contact section of each rolling element is calculated. Based on the contact load and theoretical contact angle related to each rolling element and the position of each of these rolling element related to the circumferential direction of the outer ring and the inner ring, components of force of the three directions of the contact load occurring in the rolling contact section of each rolling element are determined. These components of force of respective directions are summed for all rolling elements for each direction, thereby determining the loads of three directions and the moments of two directions acting on the gap between the outer ring and the inner ring. COPYRIGHT: (C)2010,JPO&INPIT