SEALING ASSEMBLY FOR A ROLLING BEARING

• US 20120098205A1
• Filed: 05/10/2010
• Published: 04/26/2012
• Est. Priority Date: 05/15/2009
• Status: Active Grant

• Current Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Original Assignee: Schaeffler Technologies GmbH & Co. KG (INA-Holding Schaeffler GmbH & Co. KG)
• Inventors: Fritz, Harry, Guckenberger, Claus, Herbst, Stephan
• Granted Patent: US 9,212,699 B2
• Time in Patent Office: Days
• US Class Current: 277/411
• CPC Class Codes: F16C 19/06 with a single row or balls
• CPC Class Codes: F16C 33/782 of the sealing region
• CPC Class Codes: F16C 33/785 Bearing shields made of sheet metal
• CPC Class Codes: F16C 33/80 Labyrinth sealings F16C33/761 takes precedence

Abstract

A sealing assembly for a rolling bearing. The sealing assembly has at least one cover element for covering a bearing gap along a cover plane. The cover element has a securing section, a sealing collar, a base part connecting the securing section and the sealing collar, and at least one sealing surface provided on the sealing collar for non-contact sealing. At a starting section the sealing collar extends from the base part diagonally toward the inner side of the cover element facing the bearing interior and at an end section the sealing collar extends from the inside toward the outer side of the cover element facing away from the bearing interior. At the same time, the sealing collar forms a sealing surface substantially perpendicular to the cover plane and at the end of the end section at least one edge impeding the inflow of impurities into the bearing interior.

Claims

1-14. -14. (canceled)

15. A sealing assembly for a rolling bearing, comprising:

at least one covering element for covering a bearing gap along a covering plane, the covering element has, for securing purposes, a securing section, a sealing collar, a base part connecting the securing section and the sealing collar, and at least one sealing surface on the sealing collar for non-contact sealing, the sealing collar has an initial section that runs obliquely from the base part in a direction of an inner side of the covering element, which faces a bearing interior, and, the sealing collar has an end section that extends from the inner side in a direction of an outer side of the covering element, which faces away from the bearing interior and forms a sealing surface substantially perpendicular to the covering plane and, at an end of the end section, the sealing collar forms at least one edge that impedes entry of impurities into the bearing interior.

16. The sealing assembly as claimed in claim 15, wherein the sealing collar has a profile with a substantially U-shaped in cross-section, the initial section of the sealing collar forms a first U leg, the end section of the sealing collar forms a second U leg, and a central section is provided between the initial section and the end section, to form a U base, which points toward the inner side of the covering element.

17. The sealing assembly as claimed in claim 16, wherein the U base adjoins the first U leg at a right angle or substantially at a right angle and forms a sealing surface which faces the inner side of the covering element and slopes obliquely toward the covering plane.

18. The sealing assembly as claimed in claim 16, wherein the second U leg extends at a right angle to the covering plane in the direction of the outer side of the covering element and forms a sealing surface perpendicular to the covering plane.

19. The sealing assembly as claimed in claim 15, wherein the sealing collar has a central section which adjoins the initial section and connects the initial section to the end section, and the central section together with the end section forms a profile with a right-angled cross-section.

20. The sealing assembly as claimed in claim 19, wherein the sealing collar runs parallel to the covering plane in the central section, between the initial section and the end section, and the central section forms a sealing surface parallel to the covering plane.

21. The sealing assembly as claimed in claim 19, wherein the end section extends at a right angle to the central section in the direction of the outer side of the covering element and forms a sealing surface perpendicular to the covering plane.

22. The sealing assembly as claimed in claim 19, wherein the central section together with the end section forms an L profile with an obtuse-angled cross-section.

23. The sealing assembly as claimed in claim 15, wherein a part of the sealing collar which adjoins the initial section forms a profile with a Z-shaped cross-section, the central section of the sealing collar forms a first Z leg and a second Z leg and the end section of the sealing collar forms a third Z leg, which is parallel to the first Z leg, wherein the second Z leg connects an outer end of the first Z leg to an inner end of the third Z leg.

24. The sealing assembly as claimed in claim 23, wherein the first Z leg and the third Z leg each run at a right angle to the covering plane and each form a sealing surface perpendicular to the covering plane.

25. The sealing assembly as claimed in claim 23, wherein the second Z leg adjoins the first Z leg at an acute angle and forms a sealing surface aligned in the direction of the inner side of the covering element and sloping obliquely to the covering plane.

26. The sealing assembly as claimed in claim 15, wherein the covering element is an e al element.

27. The sealing assembly as claimed in claim 15, wherein the covering element is a sheet metal part.

28. The sealing assembly as claimed in claim 15, wherein the covering element is connected in the securing section to an outer bearing ring of the rolling hearing, and the sealing collar has the at least one sealing surface for ion-contact sealing relative to an inner bearing ring of the rolling bearing.