Strut bearing with a two-component cap

Patent metadata

Field	Value
Publication number	US-10029532-B2
Application number	US-201515129561-A
Country	US
Kind code	B2
Filing date	Mar 2, 2015
Priority date	Apr 7, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

The invention relates to strut bearing with a cap and a guide ring which is mounted in a rotatable manner about a rotational axis (D) relative to the cap. An axial bearing is arranged between the cap and the guide ring, and the cap includes a soft component and a hard component. Furthermore, the soft component has at least two circumferential sealing lips which rest against the guide ring in a sliding manner in order to seal the axial bearing. According to the invention, the soft component is formed on a hard component end face oriented towards the guide ring, and a hard component end face oriented opposite the guide ring has a profile.

First claim

The invention claimed is:

1. A strut bearing comprising a cap, a guide ring supported on the cap for rotation relative to the cap about a rotational axis (D), an axial bearing arranged between the cap and the guide ring, wherein the cap comprises a soft component and a hard component, the soft component further has at least two circumferential sealing lips that form a rubbing contact on the guide ring for sealing the axial bearing,
the soft component is constructed on an end face of the hard component directed towards the guide ring such that a portion of the soft component contacts the end face and is arranged axially between the hard component and a bearing ring of the axial bearing and an end face of the hard component directed in an opposite direction has a profile with raised sections and recesses.

2. The strut bearing according to claim 1 , wherein the profile has at least one recess adapted to receive a screw element on the end face of the hard component.

3. The strut bearing according to claim 1 , wherein a first one of the circumferential sealing lips contacts an outer circumferential surface of the guide ring and a second one of the circumferential sealing lips contacts an inner circumferential surface of the guide ring.

4. The strut bearing according to claim 3 , wherein the second circumferential sealing lip has a hook-shaped construction and is arranged in a circumferential groove on the guide ring.

5. The strut bearing according to claim 3 , wherein in addition to the first circumferential sealing lip, a third circumferential sealing lip contacts the outer circumferential surface of the guide ring.

6. The strut bearing according to claim 3 , wherein at least the first circumferential sealing lip is connected to the second circumferential sealing lip by at least two webs.

7. The strut bearing according to claim 1 , wherein the soft component has at least two axial securing devices that completely fill up at least two recesses in the hard component.

8. The strut bearing according to claim 1 , wherein the soft component is made from an elastollan material and the hard component is made from a polyamide material.

9. A method for producing a strut bearing according to claim 1 , wherein the hard component is produced in a first injection-molding production step and the soft component is produced in a subsequent second injection-molding production step on the end face of the hard component oriented towards the guide ring.

Assignees

• Schaeffler Technologies Ag

Inventors

• Wollner Andreas
• Lutz Rainer
• Stautner Ralf

Classifications

• F16C33/761

  specifically for bearings with purely axial load · CPC title

• B60G15/068 Primary

  specially adapted for MacPherson strut-type suspension · CPC title

• B60G2204/418

  Bearings, e.g. ball or roller bearings · 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

• F16C19/10

  for axial load mainly · CPC title