Invention Grant
US08182155B2 Lubricating grease and lubricating grease-enclosed roller bearing 有权
润滑脂和润滑脂封闭滚子轴承

  • Patent Title: Lubricating grease and lubricating grease-enclosed roller bearing
  • Patent Title (中): 润滑脂和润滑脂封闭滚子轴承
  • Application No.: US11990884
    Application Date: 2006-09-01
  • Publication No.: US08182155B2
    Publication Date: 2012-05-22
  • Inventor: Masaki EgamiMitsunari Asao
  • Applicant: Masaki EgamiMitsunari Asao
  • Applicant Address: JP Osaka
  • Assignee: NTN Corporation
  • Current Assignee: NTN Corporation
  • Current Assignee Address: JP Osaka
  • Agency: Hedman & Costigan, P.C.
  • Agent James V. Costigan
  • Priority: 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
  • International Application: PCT/JP2006/317315 WO 20060901
  • International Announcement: WO2007/026868 WO 20070308
  • Main IPC: F16C19/00
  • IPC: F16C19/00 F16C33/30 C10M169/00 C10M111/04
Lubricating grease and lubricating grease-enclosed roller bearing
Abstract:
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.
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