Bearing unit with concentric clamping collar
AssigneeAktiebolaget Skf
InventorsFausto Baracca, Andrea A. Bertolini
Life of this patent
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Abstract
A bearing unit having a stationary radially outer ring, a radially inner ring rotatable about a central rotation axis (X) of the bearing unit is provided with at least one raceway and, in an end portion thereof, with at least two circular sector segments, at least one row of rolling elements interposed between the radially outer ring and the radially inner ring, and a concentric collar for clamping the radially inner ring on a rotating shaft, where an induction-hardening heat treatment is applied to a portion of the radially inner ring that overlaps with at least a portion of the at least one raceway.
Claims9
A bearing unit comprising:
- a stationary radially outer ring;
- a radially inner ring comprising:
- at least one raceway on a radially outer surface of the inner ring;
- at least two circular sector segments at a first end portion of the inner ring;
- wherein the inner ring is configured to rotate around a central rotation axis (X) of the bearing unit;
- at least one row of rolling elements interposed between the radially outer ring and the radially inner ring;
- a concentric collar configured to clamp the radially inner ring on a rotating shaft;
- the radially inner ring is subject to an induction hardening heat treatment at a portion comprising at least a portion of the at least one raceway.
Dependencies are inferred from the claim text.