Invention Grant
- Patent Title: Bearing device and method of manufacturing the bearing device
- Patent Title (中): 轴承装置及其制造方法
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Application No.: US10497041Application Date: 2003-03-06
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Publication No.: US07690846B2Publication Date: 2010-04-06
- Inventor: Kazutoshi Toda , Shinichirou Kashiwagi , Daisaku Tomita
- Applicant: Kazutoshi Toda , Shinichirou Kashiwagi , Daisaku Tomita
- Applicant Address: JP Osaka
- Assignee: Koyo Seiko Co., Ltd.
- Current Assignee: Koyo Seiko Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Jordan and Hamburg LLP
- Priority: JP2002-060263 20020306
- International Application: PCT/JP03/02625 WO 20030306
- International Announcement: WO03/074891 WO 20030912
- Main IPC: F16C33/32
- IPC: F16C33/32 ; F16C13/00 ; B23P17/00 ; B21D53/10
Abstract:
A bearing device is provided with a bearing ring and a shaft body that is made of carbon steel including pearlite having a cementite layer structure, and has an end portion caulked onto the bearing ring, and in this device, at least in the end portion of the shaft body, the layer gap of the cementite in the pearlite is made greater.
Public/Granted literature
- US20050078901A1 Bearing device and method of manufacturing the bearing device Public/Granted day:2005-04-14
Information query
