发明名称 |
Bit apparatus |
摘要 |
Disclosed is a bit apparatus in which a cutter member having cutting teeth is axially supported on a shaft for rotation about the shaft, and a bearing mechanism is interposed between the cutter member and the shaft. The bearing mechanism includes at least a radial bearing for bearing a radially directed load and a thrust bearing for bearing an axially directed load. The radial bearing has a shaft-side split bearing member and a cutter-side split bearing member that are opposed to or in sliding contact with each other and capable of rotating relative to each other.
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申请公布号 |
US2001042644(A1) |
申请公布日期 |
2001.11.22 |
申请号 |
US20010832231 |
申请日期 |
2001.04.11 |
申请人 |
NISHIYAMA AKIO;NAKAMURA OSAMU;KANDA KAZUTAKA;ARAI MASAHIRO;KOMAKI KUNIO |
发明人 |
NISHIYAMA AKIO;NAKAMURA OSAMU;KANDA KAZUTAKA;ARAI MASAHIRO;KOMAKI KUNIO |
分类号 |
E21B10/22;F16C17/02;F16C17/04;F16C33/24;(IPC1-7):E21B10/22 |
主分类号 |
E21B10/22 |
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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