Spring strut bearing

• US 9,869,351 B2
• Filed: 09/02/2014
• Issued: 01/16/2018
• Est. Priority Date: 11/08/2013
• Status: Active Grant

• Current Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Original Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Inventors: Wollner, Andreas, Zernickel, Alexander, Lutz, Rainer, Stautner, Ralf
• Primary Examiner(s): Waits, Alan B
• Application Number:
  US15/034,594
• Publication Number:
  US 20160281784A1
• Time in Patent Office: 1,232 Days
• CPC Class Codes: B60G 15/068 specially adapted for MacPherson strut-type suspension
• CPC Class Codes: B60G 2204/128 Damper mount on vehicle body or chassis
• CPC Class Codes: B60G 2204/418 Bearings, e.g. ball or roller bearings
• CPC Class Codes: F16C 2326/05 Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein in general B60G
• CPC Class Codes: F16C 33/74 of sliding-contact bearings
• CPC Class Codes: F16C 33/78 with a diaphragm, disc, or ring, with or without resilient members F16C33/761 takes precedence
• CPC Class Codes: F16C 35/02 in the case of sliding-contact bearings
• CPC Class Codes: F16C 35/06 Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing

Abstract

A spring strut bearing with a cap and with a guide ring which is mounted in a rotatable manner relative to the cap about a rotational axis (D), an axial bearing being arranged between the cap and the guide ring. The cap has a seal, and the cap is connected to the guide ring at an inner diameter of the cap by a snap-in connection. The cap has a first element of the snap-in connection, and the guide ring has a second element of the snap-in connection, said elements engaging into each other in a formfitting manner. The first element is designed as a two-component part, the soft component of which engages into the second element in a formfitting manner and the hard component of which forms a reinforcement of the soft component.

Claims

1. A spring strut bearing comprising:

a cap, a guide ring supported for rotation about a rotational axis (D) relative to the cap, an axial bearing between the cap and the guide ring, a seal on the cap and the cap is connected to the guide ring on an inner diameter of the cap by a snap-in connection, the cap including a first element of the snap-in connection and the guide ring including a second element of the snap-in connection, which engage in each other with a positive-fit connection, the first element is a two-component part including an axially extending sleeve having a soft component that engages with a positive-fit connection in the second element and a hard component that forms a reinforcement of the soft component, the soft component is relatively softer than the hard component, the soft component and the hard component forming the snap-in connection, the soft component including a radially extending projection, the hard component including an axially extending reinforcement and defining a radially innermost surface of the snap-in connection, and the radially extending projection being reinforced by the axially extending reinforcement.

2. The spring strut bearing according to claim 1, wherein the hard component is provided on an inner diameter of the soft component.

3. The spring strut bearing according to claim 1, wherein the hard component has a segmented design.

4. The spring strut bearing according to claim 1, wherein the hard component extends over an entire inner diameter of the soft component.

5. The spring strut bearing according to claim 1, wherein the hard component is a polyamide.

6. The spring strut bearing according to claim 1, wherein the first element is constructed as a snap-on rim.

7. The spring strut bearing according to claim 1, wherein the seal has a sealing element that forms a rubbing contact on the guide ring.

8. The spring strut bearing according to claim 1, wherein the hard component extends along an entire radial inner surface of the soft component at the snap-in connection.