发明名称 |
MAIN SHAFT DEVICE AND MACHINE TOOL WITH THE SAME |
摘要 |
<p>A main shaft device whose mounting and dismounting in maintenance is facilitated and that is of low cost. The inner diameter of an outer tube (3), the inner diameter of a stator (4), and the outer diameter of a bearing sleeve (11) are larger in that order. A semi-assembled body (2) constituted of a front housing (8), a rotating shaft (6), and the bearing sleeve (11) is demountable from the outer tube (3). The diameter of a rotating body measured at any cross-section in the region rearward of the bearing sleeve (11) is made smaller than the minimum diameter of a non-rotating body measured between the rear end of the bearing sleeve (11) and the cross-section.</p> |
申请公布号 |
WO2004087353(A1) |
申请公布日期 |
2004.10.14 |
申请号 |
WO2004JP04591 |
申请日期 |
2004.03.31 |
申请人 |
NSK LTD.;SUGITA, SUMIO;AOKI, MITSUHO;INAGAKI, YOSHIFUMI;MORITA, YASUSHI |
发明人 |
SUGITA, SUMIO;AOKI, MITSUHO;INAGAKI, YOSHIFUMI;MORITA, YASUSHI |
分类号 |
B23Q11/00;B23B19/02;B23B31/26;B23Q1/26;B23Q1/40;B23Q1/70;B23Q5/04;B23Q5/10;B23Q11/12;(IPC1-7):B23B19/02 |
主分类号 |
B23Q11/00 |
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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