Invention Grant
- Patent Title: Method for producing a track element of a bearing assembly
- Patent Title (中): 用于制造轴承组件的轨道元件的方法
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Application No.: US14354178Application Date: 2012-10-25
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Publication No.: US09273727B2Publication Date: 2016-03-01
- Inventor: Juergen Gegner , Udo Krug , Armin Olschewski , Arno Stubenrauch
- Applicant: AKTIEBOLAGET SKF
- Applicant Address: SE Gothenburg
- Assignee: AKTIEBOLAGET SKF
- Current Assignee: AKTIEBOLAGET SKF
- Current Assignee Address: SE Gothenburg
- Agency: SKF USA Inc. Patent Dept.
- Agent Bryan Peckjian
- Priority: DE102011085205 20111026
- International Application: PCT/EP2012/071167 WO 20121025
- International Announcement: WO2013/060783 WO 20130502
- Main IPC: F16C19/36
- IPC: F16C19/36 ; F16C33/58 ; B23P15/00 ; C21D9/40 ; F16C33/64 ; C21D1/02 ; F16C19/24

Abstract:
A method for manufacturing a raceway element of a bearing assembly includes hardening a raceway element having a raceway surface by at least partially heating the raceway element, deep rolling the raceway surface using a first rolling element, and then deep rolling the raceway surface using a second rolling element. The first rolling element has at least one different dimension than the second rolling element. In the resulting raceway element, compressive residual stresses of at least 400 MPa are present at a depth from the raceway surface of 200 μm or less, and between the raceway surface and a depth of 100 μm from the raceway surface, the amount of the compressive residual stresses changes by 500 MPa or less.
Public/Granted literature
- US20150036960A1 METHOD FOR PRODUCING A TRACK ELEMENT OF A BEARING ASSEMBLY, AND A TRACK ELEMENT Public/Granted day:2015-02-05
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