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US 11,306,781 B2Granted
Slewing bearing with sealing arrangement
AssigneeAktiebolaget Skf
InventorsJuliette Delaby, Herve Dondaine
Life of this patent
Estimating the term…
Abstract
A slewing bearing includes first and second rings and rolling elements therebetween. The first ring has a shoulder, and a cap is fixed to the first ring that, with the shoulder, defines a radially outwardly facing circumferential groove. A sealing contact member is fixed to a surface of the second ring. A first seal is mounted in the groove, and a sealing member is mounted on the cap. The first seal and the sealing member each include a sealing lip in sliding frictional contact with the sealing contact member.
Claims20
A slewing bearing comprising:
- a first ring having a shoulder,
- a cap fixed to the first ring and defining with the shoulder a radially facing circumferential groove, the cap including a circumferential slot on a frontal surface and a cap sealing member having an annular heel mounted in the circumferential slot, the cap sealing member having a sealing lip,
- a second ring,
- a sealing contact member fixed to a surface of the second ring at a joint,
- at least one row of rolling elements arranged between the first ring and the second ring and not axially overlapping the sealing contact member, and
- a first seal having an annular heel and a sealing lip, the annular heel of the first seal being mounted in the circumferential groove,
- wherein the first ring and the second ring are configured for relative rotation around a rotation axis,
- wherein the sealing lip of the cap sealing member is in sliding frictional contact with a first surface portion of the sealing contact member, and
- wherein the sealing lip of the first seal is in sliding frictional contact with a second surface portion of the sealing contact member.
6 more elements
A slewing bearing comprising:
- a first ring having a shoulder,
- a cap fixed to the first ring and defining with the shoulder a radially facing circumferential groove, the cap including a circumferential slot on a frontal surface and a cap sealing member having an annular heel mounted in the circumferential slot, the cap sealing member having a sealing lip,
- a second ring,
- a sealing contact member fixed to a surface of the second ring at a joint,
- at least one row of rolling elements arranged between the first ring and the second ring,
- a first seal having an annular heel and a sealing lip, the annular heel of the first seal being mounted in the circumferential groove, and
- a second seal having an annular heel and a sealing lip, the annular heel of the second seal being mounted in the circumferential groove,
- wherein the first ring and the second ring are configured for relative rotation around a rotation axis,
- wherein the sealing lip of the cap sealing member is in sliding frictional contact with a first surface portion of the sealing contact member,
- wherein the sealing lip of the first seal is in sliding frictional contact with a second surface portion of the sealing contact member, and
- wherein the sealing lip of the second seal is in sliding frictional contact with the second ring.
8 more elements
A slewing bearing comprising:
- a first ring having a shoulder,
- a cap fixed to the first ring and defining with the shoulder a radially facing circumferential groove, the cap including a circumferential slot on a frontal surface and a cap sealing member having an annular heel mounted in the circumferential slot, the cap sealing member having a sealing lip,
- a second ring,
- a sealing contact member fixed to a surface of the second ring at a joint,
- at least one row of rolling elements arranged between the first ring and the second ring, and
- a first seal having an annular heel and a sealing lip, the annular heel of the first seal being mounted in the circumferential groove and radially spaced from the second ring,
- wherein the first ring and the second ring are configured for relative rotation around a rotation axis,
- wherein the sealing lip of the cap sealing member is in sliding frictional contact with a first surface portion of the sealing contact member, and
- wherein the sealing lip of the first seal is in sliding frictional contact with a second surface portion of the sealing contact member.
6 more elements
Dependencies are inferred from the claim text.