Suspension strut bearing

Patent metadata

Field	Value
Publication number	US-8992094-B2
Application number	US-201313943331-A
Country	US
Kind code	B2
Filing date	Jul 16, 2013
Priority date	Jul 18, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

A suspension strut bearing including a guide ring arranged along a suspension strut axis, and a cap. The guide ring is configured for mounting a coil spring, and the cap is configured for supporting the suspension strut bearing on an undercarriage of an automotive vehicle. The guide ring includes a radial flange and further includes a guide nozzle adjoining the radial flange, the guide nozzle serving to guide said coil spring, the suspension strut bearing further including a thrust bearing arranged between the radial flange of the guide ring and the cap. The guide ring includes a reinforcement ring spray coated with a plastic, which reinforcement ring further includes a bushing section for reinforcing the guide nozzle and an integrally formed adjoining radial collar for reinforcing the radial flange, wherein the reinforcement ring is configured as a bearing part of the thrust bearing.

First claim

What is claimed is:

1. A suspension strut bearing comprising:
a guide ring arranged along a suspension strut axis and configured for mounting a coil spring, the guide ring including a radial flange and a guide nozzle adjoining the radial flange, the guide nozzle serving to guide the coil spring;
a cap configured for supporting the suspension strut bearing on an undercarriage of an automotive vehicle; and
a thrust bearing arranged between the radial flange of the guide ring and the cap;
the guide ring including a reinforcement ring spray coated with a plastic, the reinforcement ring including a bushing section for reinforcing the guide nozzle and an integrally formed adjoining radial collar for reinforcing the radial flange, the bushing section extending axially away from the radial flange and into the guide nozzle along the coil spring, the reinforcement ring being configured as a bearing part of the thrust bearing,
wherein the guide nozzle and the adjoining radial collar are injection molded out of plastic and the reinforcement ring is formed of metal and sprayed over with the plastic,
wherein in a region of the bearing part of the reinforcement ring is not sprayed with plastic.

2. The suspension strut bearing as recited in claim 1 wherein the reinforcement ring includes, on a front end facing the cap, an integrally formed ball groove for balls of the thrust bearing, the thrust bearing being a deep groove thrust ball bearing.

3. The suspension strut bearing as recited in claim 1 wherein the thrust bearing is a deep groove ball bearing including balls rolling on ball grooves, one of the ball grooves associated to the guide ring being integrally formed on the radial collar of the reinforcement ring.

4. The suspension strut bearing as recited in claim 1 wherein the reinforcement ring includes a shoulder extending about the suspension strut axis, the shoulder being arranged between the bushing section and the radial collar.

5. The suspension strut bearing as recited in claim 4 wherein the shoulder includes a first portion extending parallel to the radial collar at a surface of the radial collar for supporting coil spring, the shoulder including a second portion perpendicular to the first portion.

6. A suspension strut bearing comprising:
a guide ring arranged along a suspension strut axis and configured for mounting a coil spring, the guide ring including a radial flange and a guide nozzle adjoining the radial flange, the guide nozzle serving to guide the coil spring;
a cap configured for supporting the suspension strut bearing on an undercarriage of an automotive vehicle; and
a thrust bearing arranged between the radial flange of the guide ring and the cap;
the guide ring including a reinforcement ring spray coated with a plastic, the reinforcement ring including a bushing section for reinforcing the guide nozzle and an integrally formed adjoining radial collar for reinforcing the radial flange, the bushing section extending axially away from the radial flange and into the guide nozzle along the coil spring, the reinforcement ring being configured as a bearing part of the thrust bearing,
wherein the reinforcement ring includes a shoulder extending about the suspension strut axis, the shoulder being arranged between the bushing section and the radial collar,
wherein the shoulder includes a first portion extending parallel to the radial collar at a surface of the radial collar for supporting coil spring, the shoulder including a second portion perpendicular to the first portion.

7. The suspension strut bearing as recited in claim 6 wherein the reinforcement ring is free of plastic in a region of the bearing part on a side facing the cap.

8. The suspension strut bearing as recited in claim 6 wherein the guide nozzle and the adjoining radial collar are injection molded out of plastic and the reinforcement ring is formed of metal and sprayed over with the plastic.

9. The suspension strut bearing as recited in claim 8 wherein in a region of the bearing part of the reinforcement ring is not sprayed with plastic.

10. The suspension strut bearing as recited in claim 6 wherein the reinforcement ring includes, on a front end facing the cap, an integrally formed ball groove for balls of the thrust bearing, the thrust bearing being a deep groove thrust ball bearing.

11. The suspension strut bearing as recited in claim 6 wherein the thrust bearing is a deep groove ball bearing including balls rolling on ball grooves, one of the ball grooves associated to the guide ring being integrally formed on the radial collar of the reinforcement ring.

12. The suspension strut bearing as recited in claim 6 wherein the reinforcement ring includes a shoulder extending about the suspension strut axis, the shoulder being arranged between the bushing section and the radial collar.

Assignees

• Schaeffler Technologies Ag

Inventors

• Stautner Ralf
• Woellner Andreas
• Lutz Rainer

Classifications

• F16C2361/53

  Spring-damper, e.g. gas springs · CPC title

• F16C35/042

  Housings for rolling element bearings for rotary movement · CPC title

• F16C33/761 Primary

  specifically for bearings with purely axial load · CPC title

• F16C33/583 Primary

  Details of specific parts of races · CPC title

• F16C19/10

  for axial load mainly · CPC title