ROLLER MOVEMENT MEASURING DEVICE, ROLLER MOVEMENT MEASURING METHOD, AND ROLLER MOVEMENT MEASURING TOOL

摘要

PROBLEM TO BE SOLVED: To provide a roller movement measuring device and a roller movement measuring method capable of three-dimensionally measuring a roller movement of a roller bearing.SOLUTION: Three sphere members 10 are placed in a position which overlaps with an end face of a roller of a roller bearing in a normal direction of the end face in a state staying still on the end face and not in a place on a same straight line. The three sphere members 10 are photographed with six infrared cameras and an image analysis is performed to determine trajectory of the rollers three-dimensionally and temporally.