Manufacturing method of thin component, bearing ring, thrust needle roller bearing, manufacturing method of rolling bearing ring, rolling bearing ring, and rolling bearing

Abstract

A manufacturing method of a thin component is characterized by heating a thin component, and thereafter, while sizing with molds and using molds as cooling media, performing one of quenching and isothermal transformation processes on thin component. Thus, a manufacturing method of a thin component without warping or deformation in heat treatment with even and high hardness, a bearing ring, a thrust needle roller bearing, a manufacturing method of a rolling bearing ring, a rolling bearing ring, and a rolling bearing can be obtained.

1 - 11 . (canceled) 
     
     
         12 . A thrust needle roller bearing including a bearing ring manufactured by a method of a thin component, the method including the steps of
 heating said thin component, and thereafter, while sizing with molds and using said molds as cooling media of said thin component, performing one of quenching and isothermal transformation processes on said thin component.   
     
     
         13 - 17 . (canceled) 
     
     
         18 . A rolling bearing, comprising a rolling bearing ring and a rolling element, wherein
 said rolling bearing ring is manufactured by a manufacturing method comprising the step of after heating a rolling bearing ring as a thin component using a manufacturing method of said thin component by cooling said rolling bearing ring while pressing with molds and using said molds as quenching media, quenching said rolling bearing ring, and   the manufacturing method of the thin component including the steps of heating a thin component, and thereafter, while sizing with molds and using said molds as cooling media of said thin component, performing one of quenching and isothermal transformation processes on said thin component.   
     
     
         19 . The rolling bearing according to  claim 18 , wherein said rolling bearing is a thrust needle roller bearing.