公开(公告)号：WO2006020346A1

公开(公告)日：2006-02-23

申请号：PCT/US2005/026005

申请日：2005-07-22

Applicant: TIMKEN US CORPORATION ,  CHIDESTER, Alan, J. ,  GORDON, William, A. ,  HANSON, John, C.

Inventor： CHIDESTER, Alan, J. ,  GORDON, William, A. ,  HANSON, John, C.

IPC: C21D9/40 ,  F16C33/64 ,  F16C19/46 ,  F16C21/00

CPC classification number: F16C33/62 ,  F16C19/46 ,  F16C21/005 ,  F16C33/64 ,  F16C2204/66 ,  F16C2361/41 ,  Y10T29/49684 ,  Y10T29/49689 ,  Y10T29/49709

Abstract: A roller bearing assembly and a method of forming a rolling bearing assembly. The bearing assembly includes a shell formed from a cold-rolled strip having a carbon content greater than 0.65%. In one aspect of the invention, the circumferential raceway has an as hardened surface hardness of at least 58 HRC without the application of a carbunzing treatment to the formed shell. In another aspect of the invention, the cold-rolled strip has a carbon content greater than 0.65% and an ASTM grain size no. of 8 or finer. The circumferential raceway has an average surface roughness Ra. less than or equal to 18 microinchs without the application of any finishing process to the formed shell.

Abstract translation: 一种滚子轴承组件和一种形成滚动轴承组件的方法。 轴承组件包括由碳含量大于0.65％的冷轧带形成的壳体。 在本发明的一个方面，圆周滚道具有至少58HRC的硬化表面硬度，而不对所形成的壳进行碳化处理。 在本发明的另一方面，冷轧带材具有大于0.65％的碳含量和ASTM晶粒尺寸的。 8或更细。 圆周滚道具有平均表面粗糙度Ra。 小于或等于18微英寸，而不对所形成的壳施加任何精加工。