Sealing Device for Wheel Hub Assembly

Patent metadata

Field	Value
Publication number	US-2021071763-A1
Application number	US-202017006953-A
Country	US
Kind code	A1
Filing date	Aug 31, 2020
Priority date	Sep 5, 2019
Publication date	Mar 11, 2021
Grant date	—

Abstract

Sealing device for a wheel hub assembly provided with a rolling bearing, the sealing device being provided with a shield mounted on an outer ring of the bearing and with an annular cylindrical wall having an inner lateral surface mounted on an outer lateral surface of a collar of the outer ring; and with a sealing material fixed to the shield and defined by a pre-formed annular covering of polymer material, preferably but not necessarily rubber or thermoplastic material, formed independently and separately from the shield and mounted on the shield.

First claim

1 . A sealing device comprising:
a shield configured to be mounted on an outer ring of a bearing, the shield defining an annular cylindrical wall having an outer lateral surface configured for mounting on an inner lateral surface of a collar of an outer ring of the bearing, and an annular covering fixed to the shield and formed of a sealing material that is formed independently and separately from the shield and mounted on the shield.

2 . The sealing device of claim 1 , wherein the annular covering is no formed by co-moulding.

3 . The sealing device of claim 1 , wherein the annular covering is formed of rubber or thermoplastic material.

4 . The sealing device of claim 1 , wherein the annular covering comprises an annular engagement catch.

5 . The sealing device of claim 4 , wherein the annular engagement catch is configured to allow the annular covering to be assembled by plastically deforming a portion of the annular covering and further configured to allow the annular covering to be fastened permanently on to the shield.

6 . The sealing device of claim 5 , wherein the annular covering comprises:
a cylindrical wall having an axial development coupled by interference to a cylindrical wall of the shield; and, a first circular annular wall having a substantially radial development that bears axially on a circular annular wall of the shield.

7 . The sealing device of claim 7 , wherein the annular engagement catch comprises a second circular annular wall having a substantially radial development, which is coupled to the cylindrical wall at an opposite end from the first circular annular wall, and is coupled to an annular frontal edge of the cylindrical wall.

8 . A wheel hub assembly comprising the sealing device of claim 1 .

9 . A wheel hub assembly comprising the sealing device of claim 8 .

10 . A sealing device comprising:
a shield configured to be mounted on an outer ring of a bearing, the shield defining an annular cylindrical wall having an outer lateral surface configured for mounting on an inner lateral surface of a collar of an outer ring of the bearing, and an annular covering fixed to the shield and formed of a sealing material that is formed independently and separately from the shield and mounted on the shield, wherein the annular engagement catch is configured to allow the annular covering to be assembled by plastically deforming a portion of the annular covering and further configured to allow the annular covering to be fastened permanently on to the shield, further wherein the annular covering comprises:
a cylindrical wall having an axial development coupled by interference to a cylindrical wall of the shield; and,
a first circular annular wall having a substantially radial development that bears axially on a circular annular wall of the shield,
wherein the annular engagement catch comprises a second circular annular wall having a substantially radial development, which is coupled to the cylindrical wall at an opposite end from the first circular annular wall, and is coupled to an annular frontal edge of the cylindrical wall.

11 . The sealing device of claim 1 , wherein the annular covering is no formed by co-moulding.

12 . The sealing device of claim 1 , wherein the annular covering is formed of rubber or thermoplastic material.

13 . The sealing device of claim 1 , wherein the annular covering comprises an annular engagement catch.

14 . A wheel hub assembly comprising the sealing device of claim 10 .

15 . A wheel hub assembly comprising the sealing device of claim 13 .

Assignees

• Skf Ab

Inventors

• Nastasi Antonia
• Sansalone Mickael

Classifications

• F16C33/7873

  with a single sealing ring of generally L-shaped cross-section · CPC title

• F16C33/7816 Primary

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

• F16C2208/10

  Elastomers; Rubbers · CPC title

• F16C2220/02

  by casting · CPC title

• F16C2326/02

  Wheel hubs or castors · CPC title