Bearing unit
AssigneeAktiebolaget Skf
InventorsAndrea A. Bertolini, Fausto Baracca, Pasquale Frezza
Life of this patent
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Abstract
A bearing unit (10) has a radially outer ring (31), a radially inner ring (33), an eccentric locking collar (40), a row of rolling bodies (32), and a sealing device (50). The sealing device (50) is arranged on the same side as the locking collar (40) and is interposed between the radially inner ring (33), the radially outer ring (31) and the locking collar (40). The sealing device (50) includes a metal shield (55) stably connected to the radially outer ring (31), and an elastomeric component (60) co-molded on the shield (55) in a radially inward direction. The elastomeric component (60) has a plurality of lips, of which at least one lip (64, 65) is in contact with the locking collar (40).
Claims11
A bearing unit comprising:
- a stationary radially outer ring,
- a radially inner ring rotatable with respect to an axis of rotation,
- an eccentric locking collar configured to constrain the radially inner ring to rotation with a rotating shaft,
- a row of rolling bodies interposed between the radially outer ring and the radially inner ring, and
- a sealing device arranged on the same side as the locking collar, the sealing device being interposed between the radially outer ring, the radially inner ring and the locking collar, the sealing device comprising:
- a shield made of metallic material, the shield stably connected to the radially outer ring, and
- an elastomeric component co-molded on the shield in a radially internal direction, the elastomeric component having a plurality of lips, wherein at least one lip of the plurality of lips is in contact with the locking collar.
Dependencies are inferred from the claim text.