Sealing system for a rolling bearing

Patent metadata

Field	Value
Publication number	US-10047798-B2
Application number	US-201615287797-A
Country	US
Kind code	B2
Filing date	Oct 7, 2016
Priority date	Oct 7, 2015
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A sealing system for a rolling bearing, said sealing system includes a sealing body arranged on a stationary bearing ring of the rolling bearing. The sealing body has a first sealing lip which has a first sealing edge and with the first sealing edge rests with a pre-tension against a rotating first sealing surface. The second sealing lip is arranged further inward with respect to rolling bodies of the rolling bearing, and has a second sealing edge which in the installed state and in the absence of wear is spaced apart from a rotating second sealing surface by a distance.

First claim

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein:

1. A sealing system for a rolling bearing, said sealing system comprising:
a sealing body arranged on a stationary bearing ring of the rolling bearing, said sealing body including a first sealing lip which has a sealing edge via which the first sealing lip rests with a pre-tension against a rotating first sealing surface, a second sealing lip arranged further inward than the first sealing lip with respect to rolling bodies of the rolling bearing, said second sealing lip having a sealing edge which in the installed state and in the absence of wear is spaced apart from a separate rotating second sealing surface by a distance, and a first component having the first sealing surface and a second component having the second sealing surface, wherein the first sealing lip is oriented toward the first component and the second sealing lip is oriented toward the second component.

2. The sealing system of claim 1 , wherein the sealing body has a plurality of said second sealing lip, said second sealing lips sequentially arranged behind each other.

3. The sealing system of claim 1 , wherein the sealing body is configured so as to exert the pre-tension.

4. The sealing system of claim 1 , wherein the sealing body includes a support body configured to exert the pre-tension.

5. The sealing system of claim 4 , wherein the support body is made of a plastic material or a metallic material and the sealing body is made of an elastomer.

6. The sealing system of claim 1 , wherein the second component is a rotating bearing ring of the rolling bearing and wherein the first component is rotatably supported via the rotating bearing ring.

7. The sealing system of claim 1 , further comprising a common component having the first and the second sealing surfaces, wherein the first sealing lip and the second sealing lip are oriented toward the common component.

8. The sealing system of claim 7 , wherein the common component is a rotating bearing ring of the rolling bearing.

9. The sealing system of claim 7 , wherein the common component is a carrier element arranged on a rotating bearing ring of the rolling bearing.

10. The sealing system of claim 1 , wherein the sealing body is configured to exhibit a water drain groove.

11. The sealing system of claim 1 , wherein the first and/or the second sealing surface have a conical shape or another geometrically inclined shape.

12. The sealing system of claim 1 , wherein the first and/or the second sealing surface are provided with a coating and/or a thickening and/or are made of a non-corrosive material.

Assignees

• Audi Ag

Inventors

• Albl Johannes
• Frisch Michael

Classifications

• F16C33/7886

  mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race · CPC title

• F16C33/583

  Details of specific parts of races · CPC title

• F16C19/163

  with angular contact · CPC title

• F16C33/7823 Primary

  of sealing lips · CPC title

• F16C33/7826

  of the opposing surface cooperating with the seal, e.g. a shoulder surface of a bearing ring · CPC title