REMAINING LIFE PREDICTION METHOD OF ROLLING BEARING

摘要

PROBLEM TO BE SOLVED: To provide a method which can further accurately predict a remaining life of a bearing without causing a variation.SOLUTION: An X-ray fatigue degree with respect to a fatigue progression degree is digitized in advance by measuring a reduction amount of a half value width of a martensite structure of a material, and a reduction amount of a remaining austenite amount with respect to a bearing constituting part by using an X-ray diffraction device, at least one of the followings (A) to (C) is measured after an operation for a prescribed time., and a remaining life of the bearing is predicted by making the X-ray fatigue degree associate with one of the followings. (A) A load of rolling during an operation. (B) At least one of a size, quantity and weight of a foreign matter in a lubricant. (C) At least one of a size and an occupation are of an impression which is formed on a raceway surface or a rolling surface.