Invention Grant
- Patent Title: Oil-impregnated bushing, oil-free chain and method for manufacturing oil-impregnated bushing
- Patent Title (中): 油浸套管，无油链条和油浸套管制造方法
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Application No.: US12738298Application Date: 2008-10-23
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Publication No.: US08136339B2Publication Date: 2012-03-20
- Inventor: Takeshi Kondo , Toshihiko Takashima , Ikutaro Nakagawa , Takahisa Andoh , Masahide Komeda
- Applicant: Takeshi Kondo , Toshihiko Takashima , Ikutaro Nakagawa , Takahisa Andoh , Masahide Komeda
- Applicant Address: JP Osaka
- Assignee: Tsubakimoto Chain Co.
- Current Assignee: Tsubakimoto Chain Co.
- Current Assignee Address: JP Osaka
- Agency: Katten Muchin Rosenman LLP
- Priority: JP2007-285184 20071101
- International Application: PCT/JP2008/069220 WO 20081023
- International Announcement: WO2009/057503 WO 20090507
- Main IPC: C10M169/00
- IPC: C10M169/00 ; C10M157/02 ; F16C33/42 ; C22C38/00 ; F16G13/08 ; F16C33/02
Abstract:
The oil-free chain is obtained by connecting a pair of inner link plates which are connected by oil-impregnated bushings and a pair of outer link plates, which are connected by pins inserted into adjacent oil-impregnated bushings of adjacent inner link plates alternately. The oil-impregnated bushing is obtained by impregnating a bushing made of a metal sintered body with perfluoropolyether having a kinematic viscosity at 40° C. equal to or higher than 350 mm2/s. The bushing is impregnated with perfluoropolyether having a kinematic viscosity corresponding to the operating temperature of the oil-free chain.
Public/Granted literature
- US20100275571A1 OIL-IMPREGNATED BUSHING, OIL-FREE CHAIN AND METHOD FOR MANUFACTURING OIL-IMPREGNATED BUSHING Public/Granted day:2010-11-04
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