| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cylindrical roller bearing device which maintains high reliability and wear resistance property in a high temperature, high speed rotation, while actualizing space saving and weight saving. <P>SOLUTION: A cylindrical roller bearing device 11 holds rolling elements 15, making a rotation shaft 12 of the cylindrical roller bearing device 11 in which a cylindrical roller bearing 16 is built-in, as an inner race of the cylindrical roller bearing 16, wherein the raceway surface 12a of the rotation shaft 12 of the cylindrical roller bearing device 11 contacting the rolling elements 15 is formed by a member having a same or better quality than that of a cylindrical roller 14. <P>COPYRIGHT: (C)2013,JPO&INPIT |
