| 摘要 |
The present invention relates to a roller cutter to be mounted on a rock boring head via a journal and a saddle. The journal has two ends that are supposed to be fixed to a conventional saddle. The journal is surrounded by a rotatably carried roller body comprising rows of circumferentially extending cutting means. The rotational axis of the roller cutter inclines an angle phi 1 with respect to the center line of the journal so that a true rolling movement may be obtained between the roller cutter and the rock surface.
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