发明授权
- 专利标题: Lubricating grease and lubricating grease-enclosed roller bearing
- 专利标题(中): 润滑脂和润滑脂封闭滚子轴承
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申请号: US11990884申请日: 2006-09-01
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公开(公告)号: US08182155B2公开(公告)日: 2012-05-22
- 发明人: Masaki Egami , Mitsunari Asao
- 申请人: Masaki Egami , Mitsunari Asao
- 申请人地址: JP Osaka
- 专利权人: NTN Corporation
- 当前专利权人: NTN Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Hedman & Costigan, P.C.
- 代理商 James V. Costigan
- 优先权: JPP-2005-255675 20050902; JPP-2005-255683 20050902; JPP-2005-330852 20051115; JPP-2005-330857 20051115; JPP-2005-332261 20051117; JPP-2006-013100 20060120; JPP-2006-013104 20060120
- 国际申请: PCT/JP2006/317315 WO 20060901
- 国际公布: WO2007/026868 WO 20070308
- 主分类号: F16C19/00
- IPC分类号: F16C19/00 ; F16C33/30 ; C10M169/00 ; C10M111/04
摘要:
A lubricating grease is provided which is excellent in durability at high temperatures, inhibits the reaction between fluorine and steel and has a long life and a rolling bearing in which the lubricating grease is enclosed. The lubricating grease contains perfluoropolyether oil as a base oil thereof and fluorocarbon resin powder as a thickener thereof, a diurea compound having an —NH— bond in the molecular structure thereof, an organic-acid metal salt or a bismuth-containing compound such as bismuth sulfate. The rolling bearing has an inner ring and an outer ring disposed concentrically with each other, a plurality of rolling elements interposed between the inner ring and the outer ring, and a retainer dividedly holding the rolling elements.