| 摘要 |
<p>A tool string member (10) is disclosed comprising a body (12) having a bearing race (20) on an outer surface of the body, and bearings (28) located in the race, wherein each bearing is held in the race against lateral movement. Restraining the bearings against lateral movement in the race distributes the load more evenly onto the body of the tool, and reduces the risks of high forces locking up all of the bearings in the race.</p> |
