The rolling means for supporting null which possess the rolling element which is obtained with production method and this method of the ceramic make spherical body for the rolling means for supporting

摘要

PROBLEM TO BE SOLVED: To provide a rolling bearing capable of sufficiently lengthening the life even under high speed rotation where a dmn value reaches 1,400,000 or higher or under corrosive environment where a lubricant cannot be used.;SOLUTION: Balls 3 are prepared by the following method. Spherical bodies made of ceramics are placed in a mill pot of a planetary ball mill, the planetary ball mill is operated, centrifugal force following revolution generated in the mill pot and centrifugal force following rotation are given to the spherical bodies, thereby, the spherical bodies are made to collide with one another, the spherical bodies are made to collide with an inner wall of the mill pot to perform a ball mill process for leading residual stress into the surface of the spherical bodies, and thereafter, a finishing polishing machining is performed.;COPYRIGHT: (C)2008,JPO&INPIT