Granted Patent B2

US 12,618,440 · App. 17/385,353 · Granted May 5, 2026

Inventors: Klaus Dahinten (Großbardorf, DE); Werner Schimmel (Waigolshausen, DE); Jesko-Henning Tanke (Schweinfurt, DE)

Assignee: AKTIEBOLAGET SKF

F16C33/7826F16C33/7823F16J15/3244F16C33/7813F16C33/7886

Abstract

Claims (46)

1 . A large bearing assembly comprising:

at least one first bearing ring,

at least one second bearing ring having a first slip surface, and

a first seal having a seal lip, the first seal being mounted to the at least one first bearing ring with the seal lip in contact with the first slip surface,

wherein the first slip surface includes guide channels,

wherein the guide channels have a pitch of greater than or equal to 4 mm per rotation,

wherein a circumferential distance between the guide channels is smaller than the pitch,

wherein the at least one second bearing ring includes a second slip surface configured to be contacted by a seal lip of a second seal,

wherein the second slip surface includes guide channels, and

wherein the guide channels in the first slip surface are oriented oppositely to the guide channels in the second slip surface.

2 . A large bearing assembly comprising:

at least one first bearing ring,

at least one second bearing ring having a first slip surface, and

a first seal having a seal lip, the first seal being mounted to the at least one first bearing ring with the seal lip in contact with the first slip surface,

wherein the first slip surface includes guide channels, and

wherein a circumferential distance between the guide channels is smaller than a pitch of the guide channels, and the circumferential distance between the guide channels is less than or equal to 0.1 mm.

3 . A large bearing assembly comprising:

at least one first bearing ring,

at least one second bearing ring having a first slip surface, and

a first seal having a seal lip, the first seal being mounted to the at least one first bearing ring with the seal lip in contact with the first slip surface,

wherein the first slip surface includes guide channels,

wherein a circumferential distance between the guide channels is smaller than a pitch of the guide channels, and

wherein the first slip surface has a surface roughness that is less than or equal to 0.1 μm.

4 . A large bearing assembly comprising:

at least one first bearing ring,

at least one second bearing ring having a first slip surface, and

a first seal having a seal lip, the first seal being mounted to the at least one first bearing ring with the seal lip in contact with the first slip surface,

wherein the first slip surface includes guide channels,

wherein a circumferential distance between the guide channels is smaller than a pitch of the guide channels,

wherein the at least one second bearing ring includes a second slip surface configured to be contacted by a seal lip of a second seal,

wherein the second slip surface includes guide channels, and

wherein the guide channels in the first slip surface are oriented oppositely to the guide channels in the second slip surface.

5 . A large bearing assembly comprising:

at least one first bearing ring,

at least one second bearing ring having a first slip surface, and

a first seal having a seal lip, the first seal being mounted to the at least one first bearing ring with the seal lip in contact with the first slip surface,

wherein the first slip surface includes guide channels,

wherein a circumferential distance between the guide channels is smaller than a pitch of the guide channels, and

wherein at least one of the guide channels extends at least 360 degrees around the at least one second bearing ring.

6 . A large bearing assembly comprising:

at least one first bearing ring,

at least one second bearing ring having a first slip surface, and

a first seal having a seal lip, the first seal being mounted to the at least one first bearing ring with the seal lip in contact with the first slip surface,

wherein the first slip surface includes guide channels,

wherein a circumferential distance between the guide channels is smaller than a pitch of the guide channels, and

wherein one of the guide channels is partially defined by a rib, and wherein the rib extends at least 360 degrees around the at least one second bearing ring.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (52)