Invention Grant
- Patent Title: Sintered bearing
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Application No.: US16129258Application Date: 2018-09-12
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Publication No.: US11248653B2Publication Date: 2022-02-15
- Inventor: Yoshinori Ito , Yousuke Sugai
- Applicant: NTN CORPORATION
- Applicant Address: JP Osaka
- Assignee: NTN CORPORATION
- Current Assignee: NTN CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2012-234805 20121024,JP2013-040712 20130301
- Main IPC: F16C33/10
- IPC: F16C33/10 ; C22C38/00 ; F16C33/12 ; C22C38/16 ; F16C33/14 ; B22F5/10 ; B22F1/00 ; B22F1/02 ; F16C17/02 ; B22F3/10

Abstract:
There is provided a sintered bearing having high rotational accuracy and low rotational fluctuation. This bearing includes a bearing surface (4a), and is made of a sintered compact (4″) produced by molding and sintering a raw material powder (10) containing a partially diffusion-alloyed powder (11) in which a copper powder (13) is partially diffused on a surface of an iron powder (12), a tin powder (14) as a low-melting-point metal powder, and a graphite powder as a solid lubricant powder. The sintered bearing has a radial crushing strength greater than or equal to 300 MPa.
Public/Granted literature
- US20190010984A1 SINTERED BEARING Public/Granted day:2019-01-10
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