Slewing bearing with sealing arrangement
AssigneeAktiebolaget Skf
InventorsJuliette Delaby, Herve Dondaine
Life of this patent
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Abstract
A slewing bearing including a first ring, a second ring, the first and second rings being in relative rotation around a rotation axis, at least one row of rolling elements arranged between the rings, and at least one seal mounted in a circumferential groove of first ring. A cap is fixed to the first ring and provides a cap sealing member having an annular heel mounted in an circumferential slot formed on a frontal surface of cap, and a sealing lip projecting from the heel and towards the second ring. The sealing lip has a free end in sliding frictional contact with part of the second ring.
Claims12
A slewing bearing comprising:
- a first ring including a circumferential groove having a first end and a second end,
- a second ring mounted coaxially relative to the first ring,
- at least one row of rolling elements arranged between the first ring and the second ring to support the first ring for rotation relative to the second ring, and
- at least one seal having an annular heel mounted in the circumferential groove and a sealing lip in sliding frictional contact with a first part of the second ring, the circumferential groove opening towards the second ring and including a shoulder at the first end and a cap at the second end, the cap being fixed to the first ring by fixing means,
- wherein the cap includes a cap sealing member having an annular heel mounted in a circumferential slot formed on a frontal surface of cap and a sealing lip projecting from the heel towards the second ring, the sealing lip having a free end in sliding frictional contact with a second part of the second ring, and
- wherein the heel of the cap sealing member is provided with at least one through hole.
Dependencies are inferred from the claim text.