Invention Grant
- Patent Title: Rolling-element bearing and method of manufacturing thereof
- Patent Title (中): 滚动元件轴承及其制造方法
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Application No.: US14166226Application Date: 2014-01-28
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Publication No.: US09322074B2Publication Date: 2016-04-26
- Inventor: Juergen Gegner , Wolfgang Nierlich , Armin Herbert Emil August Olschewski , Arno Stubenrauch
- Applicant: Juergen Gegner , Wolfgang Nierlich , Armin Herbert Emil August Olschewski , Arno Stubenrauch
- 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: DE102013201321 20130128
- Main IPC: C21D9/40
- IPC: C21D9/40 ; F16C33/64 ; F16C33/58 ; F16C33/30 ; F16C33/56 ; F16C33/62

Abstract:
A rolling-element bearing includes an inner ring made of steel and having an inner-ring raceway, an outer ring having an outer ring raceway, and ceramic rolling elements which roll on the inner-ring raceway and on the outer-ring raceway. The inner ring has been subjected to a heat treatment to harden it. The heat treatment is concluded with the performance of a final heat-treatment step at a predetermined temperature. In the inner ring, compressive residual stresses are formed in an outer layer by cold working in the region of the inner-ring raceway. The inner ring also has been subjected to a bluing treatment.
Public/Granted literature
- US20140212082A1 ROLLING-ELEMENT BEARING AND METHOD OF MANUFACTURING THEREOF Public/Granted day:2014-07-31
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