| 摘要 |
Body of bearing for environment with filamentous impurities with projecting shaft equipped with adjoined cover, which overlaps the bearing bush. In the outer perimeter there is at least one groove which is intersected by at least one fixed cutting tool. On the cover perimeter, beside the groove, there is at least one radial projecture formed for example by a pin, whose inner end is mounted in opening made in the cover perimeter.<IMAGE>
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