发明名称 |
ROLLER BEARING, RETAINER SEGMENT FOR WIND-POWER PLANT SPINDLE SUPPORTING ROLLER BEARING, AND SPINDLE SUPPORTING STRUCTURE OF WIND-POWER PLANT |
摘要 |
A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature. |
申请公布号 |
EP2060806(A4) |
申请公布日期 |
2010.09.01 |
申请号 |
EP20070806654 |
申请日期 |
2007.09.04 |
申请人 |
NTN CORPORATION |
发明人 |
OMOTO, TATSUYA;NAKAMIZO, EIICHI;SAKAGUCHI, TOMOYA |
分类号 |
F16C19/38;F03D11/04;F16C33/36;F16C35/063 |
主分类号 |
F16C19/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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