公开(公告)号：US10408267B2

公开(公告)日：2019-09-10

申请号：US15712278

申请日：2017-09-22

申请人： NTN CORPORATION

发明人： Tatsuya Omoto ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F16C43/04 ,  F16C33/46 ,  F16C19/36 ,  F16C33/56 ,  F16C33/51 ,  F16C19/38 ,  F16C35/063 ,  F03D80/70 ,  F03D9/25 ,  F16C41/04

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.

公开(公告)号：US09810263B2

公开(公告)日：2017-11-07

申请号：US14279539

申请日：2014-05-16

申请人： NTN CORPORATION

发明人： Tatsuya Omoto ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F16C33/56 ,  F16C33/46 ,  F16C33/51 ,  F16C19/36 ,  F03D80/70 ,  F03D9/25 ,  F16C41/04 ,  F16C43/04 ,  F16C19/38

CPC分类号： F16C33/513 ,  F03D9/25 ,  F03D80/70 ,  F05B2250/232 ,  F05B2280/5003 ,  F05B2280/6015 ,  F05C2251/042 ,  F05C2253/20 ,  F16C19/364 ,  F16C19/386 ,  F16C33/4635 ,  F16C33/467 ,  F16C33/4676 ,  F16C33/56 ,  F16C35/063 ,  F16C41/04 ,  F16C43/04 ,  F16C2208/36 ,  F16C2240/46 ,  F16C2300/14 ,  F16C2360/31 ,  Y02E10/722

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.

公开(公告)号：US09664231B2

公开(公告)日：2017-05-30

申请号：US14692840

申请日：2015-04-22

申请人： NTN CORPORATION

发明人： Tatsuya Omoto ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F16C33/51 ,  F16C33/46 ,  F16C33/56 ,  F03D11/00 ,  F03D9/00 ,  F16C19/36 ,  F03D80/70 ,  F16C43/04 ,  F16C19/38

CPC分类号： F16C33/513 ,  F03D9/25 ,  F03D80/70 ,  F05B2250/232 ,  F05B2280/5003 ,  F05B2280/6015 ,  F05C2251/042 ,  F05C2253/20 ,  F16C19/364 ,  F16C19/386 ,  F16C33/4635 ,  F16C33/467 ,  F16C33/4676 ,  F16C33/56 ,  F16C35/063 ,  F16C41/04 ,  F16C43/04 ,  F16C2208/36 ,  F16C2240/46 ,  F16C2300/14 ,  F16C2360/31 ,  Y02E10/722

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.

公开(公告)号：US20150226262A1

公开(公告)日：2015-08-13

申请号：US14692840

申请日：2015-04-22

申请人： NTN CORPORATION

发明人： Tatsuya OMOTO ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F16C33/51 ,  F03D11/00 ,  F16C33/46 ,  F16C33/56 ,  F03D9/00 ,  F16C19/36

CPC分类号： F16C33/513 ,  F03D9/25 ,  F03D80/70 ,  F05B2250/232 ,  F05B2280/5003 ,  F05B2280/6015 ,  F05C2251/042 ,  F05C2253/20 ,  F16C19/364 ,  F16C19/386 ,  F16C33/4635 ,  F16C33/467 ,  F16C33/4676 ,  F16C33/56 ,  F16C35/063 ,  F16C41/04 ,  F16C43/04 ,  F16C2208/36 ,  F16C2240/46 ,  F16C2300/14 ,  F16C2360/31 ,  Y02E10/722

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.

摘要翻译： 圆锥滚子轴承（31a）具有多个保持器部分（11a，11d），每个保持器部分具有容纳圆锥滚子（34a）的口袋，并且被布置成在圆周方向上在外圈 （32a）和内圈（33a）。 保持器部分（11a，11d）由含有填料的树脂形成，以降低热线膨胀系数。 此外，在多个保持器节段（11a，11d）沿圆周方向布置而不提供任何间隙之后，在第一保持器部分（11a）和最后的保持器部分（11d）之间设置间隙（39a）。 这里，间隙（39a）的周向范围（R）大于通过保持器节段（11a，11d）的中心的圆周的0.075％，在室温下小于其0.12％。

公开(公告)号：US10190576B2

公开(公告)日：2019-01-29

申请号：US15642491

申请日：2017-07-06

申请人： NTN CORPORATION

发明人： Tatsuya Omoto ,  Shoichi Hioki ,  Mitsuo Sasabe ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F16C33/51 ,  F16C33/46 ,  F03D15/00 ,  F16C25/06 ,  F03D80/70 ,  F16C33/37 ,  F16C33/54 ,  F16C19/36

摘要： A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between said outer ring and said inner ring; and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding said roller. A connection part extends in a circumferential direction so as to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between said outer ring and said inner ring, in which a corner of a circumferential end face is chamfered. Also provided is a spacer arranged between the circumferentially arranged first retainer segment and last retainer segment, wherein a chamfered part is provided at a corner of a circumferential spacer end face of the space. The roller bearing can be used in a main shaft support structure of a wind-power generator.

公开(公告)号：US09732734B2

公开(公告)日：2017-08-15

申请号：US14533217

申请日：2014-11-05

申请人： NTN CORPORATION

发明人： Tatsuya Omoto ,  Shoichi Hioki ,  Mitsuo Sasabe ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F03D11/00 ,  F16C33/51 ,  F16C33/46 ,  F16C25/06 ,  F16C33/37 ,  F03D80/70 ,  F16C19/36

CPC分类号： F03D15/00 ,  F03D80/70 ,  F16C19/364 ,  F16C25/06 ,  F16C33/37 ,  F16C33/467 ,  F16C33/4694 ,  F16C33/513 ,  F16C33/541 ,  F16C2300/14 ,  F16C2360/31 ,  Y02E10/722

摘要： A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part.

公开(公告)号：US20140248018A1

公开(公告)日：2014-09-04

申请号：US14279539

申请日：2014-05-16

申请人： NTN CORPORATION

发明人： Tatsuya Omoto ,  Eiichi Nakamizo ,  Tomoya Sakaguchi

IPC分类号： F16C33/56 ,  F16C33/46

CPC分类号： F16C33/513 ,  F03D9/25 ,  F03D80/70 ,  F05B2250/232 ,  F05B2280/5003 ,  F05B2280/6015 ,  F05C2251/042 ,  F05C2253/20 ,  F16C19/364 ,  F16C19/386 ,  F16C33/4635 ,  F16C33/467 ,  F16C33/4676 ,  F16C33/56 ,  F16C35/063 ,  F16C41/04 ,  F16C43/04 ,  F16C2208/36 ,  F16C2240/46 ,  F16C2300/14 ,  F16C2360/31 ,  Y02E10/722

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.

摘要翻译： 圆锥滚子轴承（31a）具有多个保持器部分（11a，11d），每个保持器部分具有容纳圆锥滚子（34a）的口袋，并且被布置成在圆周方向上在外圈 （32a）和内圈（33a）。 保持器部分（11a，11d）由含有填料的树脂形成，以降低热线膨胀系数。 此外，在多个保持器节段（11a，11d）沿圆周方向布置而不提供任何间隙之后，在第一保持器部分（11a）和最后的保持器部分（11d）之间设置间隙（39a）。 这里，间隙（39a）的周向范围（R）大于通过保持器节段（11a，11d）的中心的圆周的0.075％，在室温下小于其0.12％。