| 发明名称 | Spindle unit | ||
| 摘要 | A spindle unit includes: a main spindle that holds a rotary tool, and that is rotated; bearings by which the main spindle is rotatably supported; and a damper bearing by which the main spindle is rotatably supported, and that has a damping coefficient larger than damping coefficients of the bearings. The damping coefficient of the damper bearing is set to a value within a range from 10,000 to 1,000,000 N·s/m. | ||
| 申请公布号 | US9011007(B2) | 申请公布日期 | 2015.04.21 |
| 申请号 | US201313914770 | 申请日期 | 2013.06.11 |
| 申请人 | JTEKT Corporation | 发明人 | Matsunaga Shigeru;Okita Toshiyuki;Tanase Ryota |
| 分类号 | F16C32/06;F16C27/04;B23Q1/38;B23Q1/70;B23Q11/00;F16C21/00 | 主分类号 | F16C32/06 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A spindle unit, comprising: a main spindle that holds a rotary tool, and that is rotated; a first bearing by which the main spindle is rotatably supported; and a damper bearing by which the main spindle is rotatably supported, and that has a damping coefficient larger than a damping coefficient of the first bearing; wherein the damping coefficient of the damper bearing is set to a value within a range from 10,000 to 1,000,000 N·s/m. | ||
| 地址 | Osaka-shi JP | ||