Cutting-ring assembly
AssigneeAktiebolaget Skf
InventorsWolfgang Aust, Josef Hahn
Life of this patent
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Abstract
A cutting ring assembly for a tunnel boring machine includes a fixed axle, an inner ring rotationally fixed to the axle and having an inner raceway on a radially outer surface, a cutting ring having a radially inner surface forming an outer raceway, and a plurality of rolling elements between the inner raceway and the outer raceway supporting the cutting ring on the inner ring for rotation relative to the axle.
Claims16
A cutting ring assembly for a tunnel boring machine, comprising:
- a fixed axle,
- an inner ring rotationally fixed to the axle and having an inner raceway on a radially outer surface,
- a cutting ring having a radially inner surface forming an outer raceway, and
- a plurality of rolling elements between the inner raceway and the outer raceway supporting the cutting ring on the inner ring for rotation relative to the axle.
A cutting ring configured for use in a cutting ring assembly of a tunnel boring machine, the cutting ring including a radially inner surface turned or ground to form at least one outer raceway for guiding tapered rolling elements.
Dependencies are inferred from the claim text.