| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for measuring the rotational accuracy of an rolling bearing capable of accurately predicting the rotational accuracy when practically used. SOLUTION: The device 11 for measuring is provided with a master flat plane 26a for positioning and fixing an end face of an outer ring 3; a load shaft 30 rotatably equipped in accordance with an axis in a center shaft line of the rolling bearing 2 and pressing the front end to come in contact with an end face of an internal ring 4; a master ball 37 equipped in the front end of the load shaft 30; a first displacement measuring device 39 for measuring a radial displacement of an inside perimeter of the internal ring 4; a second displacement measuring device 38 for measuring the radial displacement of the master ball 37; a third displacement measuring device 51 for measuring the radial displacement of the outer ring 3 for the master ball 37 revolving with the load shaft 30; and a computing device 14 for computing a radial run-out of the internal ring 4 from each measured value measured with these measuring devices 38, 39, 40 and 51, roundness and eccentricity of the inside perimeter respectively, and computing roundness and eccentricity of the outside perimeter of the outer ring 3, respectively. COPYRIGHT: (C)2004,JPO
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