| 发明名称 |
Hole opener bearing arrangement |
| 摘要 |
The present disclosure provides a back reamer roller cone that is configured so that the bearings assemblies therein can be relatively easily removed and replaced. Methods of replacing the bearing assemblies in a back reamer are als provided. |
| 申请公布号 |
AU2012308394(A1) |
申请公布日期 |
2014.03.27 |
| 申请号 |
AU20120308394 |
申请日期 |
2012.09.14 |
| 申请人 |
VERMEER MANUFACTURING COMPANY |
发明人 |
MAHER, JOHN P.;RUNQUIST, RANDY R. |
| 分类号 |
E21B10/30;E21B10/573 |
主分类号 |
E21B10/30 |
| 代理机构 |
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代理人 |
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| 主权项 |
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