发明名称 |
SPEED REDUCER, METHOD AND APPRATUS FOR MANUFACTURING THE SPEED REDUCER, AND ELECTRIC POWER STEERING DEVICE WITH THE SPEED REDUCER |
摘要 |
<p>The present invention provides a speed reducer comprising a worm wheel having at least tooth skin surfaces made of polymer composite material and a worm engaged by the worm wheel and wherein a tooth surface of the worm is subjected to heat treatment by means of high frequency quenching.</p> |
申请公布号 |
EP1666770(A1) |
申请公布日期 |
2006.06.07 |
申请号 |
EP20040772093 |
申请日期 |
2004.08.18 |
申请人 |
NSK LTD.;NSK STEERING SYSTEMS CO., LTD. |
发明人 |
KOYAMA, TAKASHI;KAWAMURA, YUJI;ENDO, TOSHIHITO |
分类号 |
B62D5/04;C21D1/10;C21D9/32;F16H55/06;F16H55/22;(IPC1-7):F16H55/22 |
主分类号 |
B62D5/04 |
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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