Bearing assembly

Patent metadata

Field	Value
Publication number	US-10041542-B2
Application number	US-201615220751-A
Country	US
Kind code	B2
Filing date	Jul 27, 2016
Priority date	Jul 29, 2015
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

A bearing assembly including a bearing having a first ring with a hole, two front edges and an outer cylindrical surface, and a second ring with a hole, two radial edges and an outer cylindrical surface is provided. The first and second rings rotate relatively about a central axis. The bearing includes at least one row of rolling elements housed in a chamber formed between an outer cylindrical surface and a hole of the rings, the first and second rings and the rolling elements determining a pitch diameter of the bearing. A sealing means is provided having an engagement portion rigidly connected to one of the rings and a tapered annular body extending from the engagement portion towards the other ring. When idle, the body forms a non-zero angle with a plane perpendicular to the pitch diameter and is in direct or indirect contact with the other bearing ring.

First claim

The invention claimed is:

1. A bearing assembly comprising:
a bearing providing;
a first ring including a hole, two axial opposing faces and an outer cylindrical surface, and
a second ring including a hole, two axial opposing faces and an outer cylindrical surface, wherein
the first and second rings rotate relatively about a central axis (X 1 ),
at least one row of rolling elements housed in a bearing chamber formed between the outer cylindrical surface of one of said first and second rings and the hole of the other of said first and second rings, the first and second rings and the rolling elements determining a pitch diameter (P 1 ) of the bearing as being an axis of rotation of the rolling elements, and wherein
the assembly further includes a first sealing means rigidly connected to the first ring and having a first annular body extending from a first engagement portion towards the second ring and a second sealing means rigidly connected to the second ring and having a second annular body extending from a second engagement portion towards the first ring, such that, when the first sealing means and the second sealing means are in idle position, the first annular body and the second annular body are angled towards the bearing chamber forming a non-zero angle with a plane perpendicular to the pitch diameter (P 1 ) and are in direct contact with each other, wherein the first sealing means and the second sealing means are bisected from each other by the pitch diameter (P 1 ).

2. The bearing assembly according to claim 1 , wherein the first engagement portion of the first sealing means is rigidly connected to one of the axial opposing faces of the first ring and the second engagement portion of the second sealing means is rigidly connected to one of the axial opposing faces of the second ring.

3. The bearing assembly according to claim 1 , wherein the first engagement portion of the first sealing means overlaps one of the axial opposing faces of the first ring and the second engagement portion of the second sealing means overlaps one of the axial opposing faces of the second ring.

4. The bearing assembly according to claim 3 , wherein at least one ring of the bearing is fitted with one sealing means overlapping one of the axial opposing faces of the ring and extending via a portion overlapping all or part of an annular cylindrical surface of the ring defining the outer cylindrical surface of the bearing or the hole of the bearing, the portion overlapping all or part of the annular cylindrical surface of the ring extends from the sealing means of a single ring being rigidly connected together or forming a single element.

5. The bearing assembly according to claim 1 , wherein at least one of the engagement portions does not extend beyond the cylindrical surface of the ring delimiting the bearing chamber.

6. The bearing assembly according to claim 1 , wherein the first ring of the bearing and the second ring of the bearing are each fitted with at least one of the first and second sealing means facing one another, such that the first annular body of the first sealing means is oriented towards the second ring of the bearing and the second annular body of the second sealing means is oriented towards the first ring of the bearing, and a free end of the first sealing means and a free end of the second sealing means are in direct contact with each other when idle.

7. The bearing assembly according to claim 6 , wherein the bodies of the sealing means of two rings of the bearing are in contact when idle position, at the same angle with a plane perpendicular to the pitch diameter (P 1 ) of the bearing.

8. The bearing assembly according to claim 6 , wherein at least one of the annular bodies is fitted with a relief at the free end.

9. The bearing assembly according to claim 6 , wherein at least one of the engagement portions fitted with a spacing portion configured to shift the body of the sealing means along the pitch diameter.

Assignees

• Berens Frank
• Skf Ab

Inventors

• Berens Frank

Classifications

• F16C35/07

  Fixing them on the shaft or housing with interposition of an element · CPC title

• F16C33/7863

  mounted to the inner race, e.g. a flinger to use centrifugal effect · CPC title

• F16C33/783

  of the mounting region · CPC title

• F16C33/7816 Primary

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

• 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