| 单词 |
step bearing |
| 释义 |
Step Bearing step bearing[′step ‚ber·iŋ] (mechanical engineering) A device which supports the bottom end of a vertical shaft. Also known as pivot bearing. Step Bearing a bearing for the rotating parts of a machine that takes up only axial loads. Step bearings are classified as either plain, in which the working surfaces are separated by a layer of lubricant, or roller-contact, in which balls and rollers are used (see). |
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