发明名称 |
Spindel unit with a damper bearing |
摘要 |
A spindle unit includes: a main spindle (20) that holds a rotary tool (21), and that is rotated; bearings (41 to 44) by which the main spindle (20) is rotatably supported; and a damper bearing (50) by which the main spindle (20) is rotatably supported, and that has a damping coefficient (C1) larger than damping coefficients (C2 to C5) of the bearings (41 to 44). The damping coefficient (C1) of the damper bearing (50) is set to a value within a range from 10,000 to 1,000,000 N.s/m. |
申请公布号 |
EP2676765(B1) |
申请公布日期 |
2014.08.27 |
申请号 |
EP20130171604 |
申请日期 |
2013.06.12 |
申请人 |
JTEKT CORPORATION |
发明人 |
MATSUNAGA, SHIGERU;OKITA, TOSHIYUKI;TANASE, RYOTA |
分类号 |
B23Q1/38;B23Q1/70;B23Q11/00;F01D25/16;F16C32/06 |
主分类号 |
B23Q1/38 |
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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