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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。
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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
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。
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