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US 12,523,149 B2Granted
Cutting-ring assembly
AssigneeAktiebolaget Skf
InventorsWolfgang Aust, Josef Hahn
Life of this patent
Estimating the term…
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.
Claims14
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,
- wherein the inner ring includes:
- a) a first part having a raceway and a first integral axially extending elongated shoulder and b) a second part having a raceway and a second integral axially extending elongated shoulder that contacts the first integral axially extending elongated shoulder.
3 more elements
Dependencies are inferred from the claim text.