BEARING RING, BEARING WITH BEARING RING AND MANUFACTURING METHOD OF BEARING RING

摘要

PROBLEM TO BE SOLVED: To satisfy severe request for dimensional accuracy on rolling surfaces or sliding surfaces in a bearing ring which has rolling surfaces for rolling elements or sliding surfaces. SOLUTION: The bearing ring consists of the first bearing ring section 1 or 17 providing the first circumference surface 4 or 20 and the second circumference surface 5 or 19 which are formed as rolling surface or sliding surface, and the second bearing ring section 2 or 18 providing the first circumference surface 7 or 22 and the second circumference surface 8 or 21. The first bearing ring section 1 or 17 and the second bearing ring section 2 or 18 are located concentrically each other, and the first bearing ring section 1 or 17 and the second bearing ring section 2 or 18 are fit closely by force so that the second circumference surface 5 or 19 of the first bearing ring section 1 or 17 is deformed plastically to the profile of the first circumference surface 7 or 22 of the second bearing ring section 2 or 18 through a drawing process in axial direction.