Rolling bearing comprising a sealing flange

Patent metadata

Field	Value
Publication number	US-9644680-B2
Application number	US-201514968966-A
Country	US
Kind code	B2
Filing date	Dec 15, 2015
Priority date	Dec 15, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements disposed radially between the rings, at least one sealing flange mounted in a manner to bear axially against a front surface of one of the rings, and a feature for fixing the sealing flange to the ring. The fixing feature at least locally covers a region of the front surface of the ring that is left free by the sealing flange and a part of the flange that is adjacent to the region. The fixing feature is annular.

First claim

What is claimed is:

1. A rolling bearing comprising:
a first ring;
a second ring;
at least one row of rolling elements disposed radially between the first ring and the second ring;
a sealing flange mounted in a manner to bear axially against a front surface of the first ring, the sealing flange comprising a mounting portion that extends radially between a radially inner edge and a radially outer edge, the mounting portion further comprising an axially inner, radially extending surface and an axially outer, radially extending surface that each extend between the radially inner edge and the radially outer edge, the axially inner, radially extending surface bearing axially against the front surface of the first ring, the sealing flange further comprising an undulation that extends from one of the radially outer edge and the radially inner edge of the mounting portion and forms a concave shape with respect to the at least one row of rolling elements, the undulation comprising first and second portions wherein the first portion extends from the one of the radially outer edge and the radially inner edge of the mounting portion in a direction axially away from the first ring and ending at an end point, the second portion extending from the end point in a direction axially towards the first ring such that, with respect to the axial direction, the end point is the portion of the sealing flange that is farthest from the first ring; and
a fixing element for fixing the sealing flange to the first ring,
wherein the fixing element at least locally covers a region of the front surface of the first ring that is left free by the sealing flange and a part of the sealing flange is adjacent to the region,
wherein the fixing element is annular in shape.

2. The rolling bearing according to claim 1 ,
wherein the other one of the radially outer edge and the radially inner edge is a free end edge situated radially between a bore and an outer surface of the first ring.

3. The rolling bearing according to claim 2 , wherein the fixing element covers the free end edge of the mounting portion of the sealing flange.

4. The rolling bearing according to claim 1 , the fixing element further comprising a bead of material.

5. The rolling bearing according to claim 1 , the fixing element further comprising a bead of adhesive.

6. The rolling bearing according to claim 1 , the fixing element further comprising a welding bead.

7. The rolling bearing according to claim 1 , further comprising at least one seal that is fixed to the second ring and engages with the first ring,
wherein the sealing flange is axially offset with respect to the at least one seal on the outer side of the rolling bearing.

8. The rolling bearing according to claim 7 , wherein the sealing flange is mounted axially in contact with the at least one seal,
the rolling bearing being configured such that when fully assembled the sealing flange is axially preloaded such that a first axial distance between an inner radial end of the sealing flange and an outer radial end of the sealing flange when fully assembled is less than a second axial distance between the inner radial end of the sealing flange and the outer radial end of the sealing flange in a free state.

9. A rolling bearing comprising:
a first ring;
a second ring;
at least one row of rolling elements disposed radially between the first ring and the second ring;
a sealing flange mounted in a manner to bear axially against a front surface of the first ring; and
a fixing element for fixing the sealing flange to the first ring,
wherein the fixing element at least locally covers a region of the front surface of the first ring that is left free by the sealing flange and a part of the sealing flange is adjacent to the region,
wherein the fixing element is annular in shape,
the sealing flange further comprising a radial mounting portion,
wherein the radial mounting portion is mounted in a manner to bear axially against the front surface of the first ring, wherein the radial mounting portion is provided with a free end edge situated radially between a bore and an outer surface of the first ring,
wherein the fixing element covers a part of an internal face of the sealing flange,
wherein the internal face is situated radially on the side away from the free end edge when considering the mounting portion of the flange.

Assignees

• Aupetitgendre Elie
• Varnoux Laurent
• Skf Ab

Inventors

• Aupetitgendre Elie
• 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

• F16C33/783

  of the mounting region · CPC title

• F16C33/782

  of the sealing region · CPC title

• F16C33/7806

  for spherical roller bearings · CPC title

• F16C33/768 Primary

  between relatively stationary parts, i.e. static seals · CPC title