| 申请日期 | 2025-07-11 | 申请号 | GB0319404 |
| 公开（公告）号 | GB2392181B | 公开（公告）日 | 2006-08-30 |
| 公开国别 | GB | 申请人省市代码 | 全国 |
| 申请人 | BAKER HUGHES INC | ||
| 简介 | An earth-boring bit has a seal assembly with a seal face having a DLC coating. The seal assembly locates between a bearing pin and a cone of the bit. The seal assembly has at least one rigid ring that rotates against a mating surface. The DLC coating is diamond-like carbon that may be coated by different processes onto either the ring, the mating surface, or both. | ||
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