发明授权
- 专利标题: Tapered roller bearing
- 专利标题(中): 圆锥滚子轴承
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申请号: US11249740申请日: 2005-10-14
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公开(公告)号: US07841773B2公开(公告)日: 2010-11-30
- 发明人: Yuuji Okamoto , Takashi Tsujimoto , Jiro Mochizuki , Yasuhiro Kanbori
- 申请人: Yuuji Okamoto , Takashi Tsujimoto , Jiro Mochizuki , Yasuhiro Kanbori
- 申请人地址: JP Osaka-fu
- 专利权人: NTN Corporation
- 当前专利权人: NTN Corporation
- 当前专利权人地址: JP Osaka-fu
- 代理机构: Arent Fox LLP
- 优先权: JP2004-301865 20041015; JP2004-301866 20041015; JP2004-301867 20041015; JP2004-301868 20041015; JP2004-301869 20041015
- 主分类号: F16C33/58
- IPC分类号: F16C33/58 ; F16C33/36
摘要:
A tapered roller bearing comprises an inner ring having a conical surface-like raceway surface in it outer periphery and formed with a cone back face rib and a cone front face rib on the opposite sides of the raceway, an outer ring having a conical surface-like raceway in its inner periphery, a plurality of tapered rollers interposed between the raceways of the inner and outer rings, and a cage for holding the tapered rollers in predetermined circumferential intervals, wherein the ratio R/RBASE of the radius of curvature R of the large end face (32) of the tapered roller (30) to the distance RBASE from the apex of cone of the tapered roller (30) to the cone back face rib surface (18) of the inner ring (10) is set at 0.75 to 0.87, and the end face deflection of the large end face (32) of the tapered roller (30) is 3 μm or less.
公开/授权文献
- US20090324155A1 Tapered roller bearing 公开/授权日:2009-12-31