Seal assembly for bearing applications

Patent metadata

Field	Value
Publication number	US-2016146255-A1
Application number	US-201514949373-A
Country	US
Kind code	A1
Filing date	Nov 23, 2015
Priority date	Nov 21, 2014
Publication date	May 26, 2016
Grant date	—

Abstract

A seal assembly includes a race and a seal ring, and the race includes an axially extending race section and at least one radially extending race section that meet at a transition region. The radially extending race section is disposed at a first axial end of the axially extending race section, the seal ring includes at least one first seal lip configured to abut on the axially extended race section, and the transition region includes at least one through opening or at least one gap.

First claim

1 . A seal assembly including a race and a seal ring,
wherein the race includes an axial race section and at least one radial race section that meets the axial race section at a transition region, wherein the radial race section is disposed at a first axial end of the axial race section, wherein the seal ring includes at least one first seal lip configured to abut on the axial race section, and wherein the transition region includes at least one through opening or at least one gap.

2 . The seal assembly according to claim 1 , wherein the at least one radial race section extends towards the seal ring.

3 . The seal assembly according to claim 1 , wherein the at least one through opening or at least one gap comprises at least one gap.

4 . The seal assembly according to claim 3 , wherein the at least one gap comprises at least two gaps that define a radially extending lug therebetween.

5 . The seal assembly according to claim 1 , wherein an axially outer side of the at least one radial race section is substantially coplanar with an axially outer side of the seal ring.

6 . The seal assembly according to claim 1 , wherein an axially outer side of the at least one radial race section protrudes axially beyond an axially outer side of the seal ring.

7 . The seal assembly according to claim 1 , wherein a second axial end of the axial race section includes a second radial race section that meets the axial race section at a second transition region.

8 . The seal assembly according to claim 7 , wherein the second transition region includes at least one through opening or at least one gap.

9 . A bearing including a bearing outer ring and a bearing inner ring, and a seal assembly according to claim 1 disposed between the bearing outer ring and the bearing inner ring.

10 . The seal assembly according to claim 1 ,
wherein the at least one radial race section extends towards the seal ring, wherein the at least one through opening or at least one gap comprises at least two gaps defining a lug therebetween, wherein an axially outer side of the at least one radial race section is substantially coplanar with an axially outer side of the seal ring, wherein a second axial end of the axial race section includes a second radial race section, and wherein a second axial end of the axial race section includes a second radial race section that meets the axial race section at a second transition region.

11 . A seal assembly comprising:
a race having an axial race section and a first radial race section that extends from a first axial end of the axial race section, wherein the first radial race section comprises either a circumferentially continuous portion or comprises a plurality of discrete lugs separated by gaps, and wherein, if the first radial race section comprises a circumferentially continuous portion, the first radial race section meets the axial race section at a transition region, and the transition region includes at least one through opening, the seal assembly further comprising a seal ring having at least one first seal lip configured to abut on the axial race section.

12 . The seal assembly according to claim 11 , wherein an axially outer side of the first radial race section is substantially coplanar with an axially outer side of the seal ring.

13 . The seal assembly according to claim 11 , wherein an axially outer side of the first radial race section protrudes axially beyond an axially outer side of the seal ring.

14 . The seal assembly according to claim 11 , wherein a second axial end of the axial race section includes a second radial race section,
wherein the second radial race section comprises either a circumferentially continuous portion or comprises a plurality of discrete lugs separated by gaps, and wherein, if the second radial race section comprises a circumferentially continuous portion, the second radial race section meets the axial race section at a second transition region, and the second transition region includes at least one through opening.

15 . A bearing including a bearing outer ring and a bearing inner ring, and a seal assembly according to claim 11 disposed between the bearing outer ring and the bearing inner ring.

Assignees

• Dittmar Rico
• Skf Ab

Inventors

• Dittmar Rico

Classifications

• F16C33/7869 Primary

  mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward · CPC title

• F16C33/74

  of sliding-contact bearings · CPC title

• F16C33/72

  Sealings · CPC title

• F16C33/7883 Primary

  mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section · CPC title

• F16C33/7823 Primary

  of sealing lips · CPC title