Rolling bearing comprising a sealing flange

Patent metadata

Field	Value
Publication number	US-9546686-B2
Application number	US-201514968976-A
Country	US
Kind code	B2
Filing date	Dec 15, 2015
Priority date	Dec 15, 2014
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

Abstract

A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements that are disposed radially between the rings, at least one seal forming a first sealing component that is fixed to one of the rings and engages with the other ring, and at least one flange forming a second sealing component that is fixed to the other ring and is offset axially with respect to the seal on the outer side of the bearing. At least one of the first and second sealing components comprises at least two annular ribs, the other sealing component being mounted axially in contact therewith. At least one closed annular space is delimited by the ribs and by the other sealing component. At least one lubricant is disposed inside the space.

First claim

What is claimed is:

1. A rolling bearing comprising:
an outer ring;
an inner ring;
at least one row of rolling elements that is disposed radially between the rings;
at least one seal forming a first sealing element that is fixed to one of the rings and engages with the other ring;
at least one flange forming a second sealing element that is fixed to the other ring and is offset axially with respect to the seal on the outer side of the bearing,
wherein at least one of the first sealing element and second sealing element comprises at least two annular ribs,
wherein the other sealing element is mounted axially in contact therewith,
wherein at least one closed annular space is delimited by the ribs and by the other sealing element; and

at least one lubricant disposed inside the at least one closed annular space.

2. The rolling bearing according to claim 1 , wherein the flange is elastically deformable at least in part in the axial direction,
wherein the flange is deformed axially by the axial contact with the seal.

3. The rolling bearing according to claim 1 , wherein the thickness of each rib decreases in the direction of its free end which is in axial contact with the other sealing element.

4. The rolling bearing according to claim 1 , wherein the ribs extend axially.

5. The rolling bearing according to claim 1 , wherein the ribs are identical to one another.

6. The rolling bearing according to claim 1 , wherein the ribs are in one piece with the sealing elements.

7. The rolling bearing according to claim 1 , wherein the ribs are formed on an external side face of the seal.

8. The rolling bearing according to claim 7 , the seal further comprising at least one sealing gasket delimiting the external side face.

9. The rolling bearing according to claim 1 , wherein the ribs are formed on an internal side face of the flange.

10. The rolling bearing according to claim 1 , the flange further comprising a portion bearing on the seal which has a convex shape axially on the side of the seal.

Assignees

• Aupetitgendre Elie
• Barbera Stellario
• Organisciak Michel
• Varnoux Laurent
• Skf Ab

Inventors

• Aupetitgendre Elie
• Barbera Stellario
• Organisciak Michel
• Varnoux Laurent

Classifications

• F16C33/7886 Primary

  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

• F16C33/7816

  Details of the sealing or parts thereof, e.g. geometry, material · CPC title

• F16C33/7806

  for spherical roller bearings · CPC title

• F16C33/763

  retained in the sealing gap · CPC title

• F16C19/16 Primary

  with a single row of balls · CPC title