公开(公告)号：US07571706B2

公开(公告)日：2009-08-11

申请号：US11477498

申请日：2006-06-30

申请人： Kenichi Ichikawa ,  Shinya Oooka

发明人： Kenichi Ichikawa ,  Shinya Oooka

IPC分类号： F02B75/32

CPC分类号： B21D53/12 ,  F16C7/08 ,  F16C9/04 ,  F16C19/46 ,  F16C33/543 ,  F16C2360/22 ,  Y10T74/2159 ,  Y10T74/2162

摘要： A needle roller bearing comprises a plurality of needle rollers and a retainer. The retainer includes a pair of annular parts and pillar parts connecting the pair of annular parts so as to form pockets in which the needle rollers are housed. A sidewall surface of the pillar part has a sheared surface punched by a punching blade so that the pockets are formed, and a fractured surface fractured by a material pressed by the punching blade. The needle roller is guided by the sheared surface.

摘要翻译： 滚针轴承包括多个滚针和保持器。 保持器包括一对连接该对环形部分的环形部分和支柱部分，以形成容纳滚针的凹穴。 柱部分的侧壁表面具有由冲压刀冲压的剪切表面，从而形成凹穴，并且由被冲压刀压制的材料破裂的断裂表面。 滚针由剪切表面引导。

公开(公告)号：US20070068338A1

公开(公告)日：2007-03-29

申请号：US11477498

申请日：2006-06-30

申请人： Kenichi Ichikawa ,  Shinya Oooka

发明人： Kenichi Ichikawa ,  Shinya Oooka

IPC分类号： G05G1/00 ,  G05G3/00

CPC分类号： B21D53/12 ,  F16C7/08 ,  F16C9/04 ,  F16C19/46 ,  F16C33/543 ,  F16C2360/22 ,  Y10T74/2159 ,  Y10T74/2162

摘要： A needle roller bearing comprises a plurality of needle rollers and a retainer. The retainer includes a pair of annular parts and pillar parts connecting the pair of annular parts so as to form pockets in which the needle rollers are housed. A sidewall surface of the pillar part has a sheared surface punched by a punching blade so that the pockets are formed, and a fractured surface fractured by a material pressed by the punching blade. The needle roller is guided by the sheared surface.

摘要翻译： 滚针轴承包括多个滚针和保持器。 保持器包括一对连接该对环形部分的环形部分和支柱部分，以形成容纳滚针的凹穴。 柱部分的侧壁表面具有由冲压刀冲压的剪切表面，从而形成凹穴，并且由被冲压刀压制的材料破裂的断裂表面。 滚针由剪切表面引导。