Thrust washer and radial/axial bearing having such a thrust washer

• US 8,376,618 B2
• Filed: 11/10/2008
• Issued: 02/19/2013
• Est. Priority Date: 11/14/2007
• Status: Expired due to Fees

• Current Assignee: Federal-Mogul Wiesbaden GmbH (Apollo Global Management, Inc.)
• Original Assignee: Federal-Mogul Wiesbaden GmbH (Apollo Global Management, Inc.)
• Inventors: Lehmann, Uwe, Klier, Jurgen, Grooteboer, Thomas
• Primary Examiner(s): Hannon, Thomas R
• Application Number:
  US12/742,826
• Publication Number:
  US 20100260449A1
• Time in Patent Office: 1,562 Days
• Field of Search: 384/294, 384/275, 384/288, 384/296, 384/429, 384/430
• US Class Current: 384/275
• CPC Class Codes: F16C 17/10 for both radial and axial load
• CPC Class Codes: F16C 2226/36 by welding
• CPC Class Codes: F16C 2226/76 with tongue and groove or key and slot
• CPC Class Codes: F16C 2240/30 Angles, e.g. inclinations
• CPC Class Codes: F16C 2360/22 Internal combustion engines in general F02B
• CPC Class Codes: F16C 43/02 Assembling sliding-contact bearings
• CPC Class Codes: F16C 9/02 Crankshaft bearings

Abstract

A thrust washer (14) in the form of a semi-circular flanged ring includes at least two radially inward-directed outer connection pieces (22) on the inner edge of the thrust washer (14) for the connection with a radial bearing part (12), which are located in the circumferential direction on both sides of a contrived centerline (M) of the thrust washer (14) and in each case have an inner edge (23) facing the center line (M) and an outer edge (23a) turned away from the centerline (M). The invention also relates to a radio axial bearing with a radial bearing part and a thrust washer of such a type connected with the radial bearing part. The inner edges (23) in each case include an angle (α), which is 45° and 85°, with a tangent on the inner side connected in the center of the connection piece (22) at the semi-circle described by the thrust washer (14), in which the outer edge (23a) runs parallel to the respective inner edge (23). Such a thrust washer (14) can be connected with a radial-axial bearing (10) with a radial bearing part (12).

Claims

1. Thrust washer (14) in the form of a semi-circular flanged ring with at least two outer connection pieces (22) radially inward-directed on the inner edge of the thrust washer (14) for the connection with a radial bearing part (12), which are located in the circumferential direction on both sides of the contrived center line (M) of the thrust washer (14) and in each case have an inner edge (23) facing the centerline (M) and an outer edge (23a) turned away from the centerline (M), wherein the inner edges (23) in each case include an angle (α

), which is between 45° and

85°

, with a tangent on the inner side connected in the center of the connection piece (22) at the semi-circle described by the thrust washer (14), and that the outer edge (23a) runs parallel to the respective inner edge (23) and wherein the outer connection pieces (22) are arranged spaced apart from a partial plan (T) bisecting the flanged ring.

2. Thrust washer (14) according to claim 1, wherein the inner edges (23) of the outer connection pieces (22) run parallel to the partial plane (T) or include an angle with the latter, which is not greater than ±

15°

.

3. Thrust washer (14) according to claim 1, wherein the outer connection pieces (22) are arranged symmetrically to the centerline (M).

4. Thrust washer (14) according to claim 1, including a third central connection piece (32) radially inward-directed, located at the inner edge, which is arranged offset to the centerline (M).

5. Thrust washer (14) according to claim 1, including two supports (42) radially inward-directed, located on its inner edge.

6. Thrust washer (14) according to claim 5, wherein the supports (42) are arranged symmetrically on both sides of the centerline (M) and inside of at least two connection pieces (22).

7. Radial-axial bearing (10) with a radial bearing part (12) and a thrust washer (14) connected with the radial bearing part (12), in which outer connection pieces (22) of the thrust washer engage in corresponding frontal outer recesses (24) in the radial bearing part (12), which in each case have an inner edge (25) facing a contrived centerline (M) of the thrust washer (14), which includes an angle (α

), which is between 45° and

85°

, with a tangent connected in a center of the recesses (24) at the circle or semi-circle described by the radial bearing part (12), and in each case have an outer edge (25a) turned away from the centerline (M) of the thrust washer (14), which runs parallel to the respective inner edge (25), and wherein the recesses (24) are arranged spaced apart form a partial plane (T) bisecting the flanged ring.

8. Radial-axial bearing (10) according to claim 7, wherein the inner edges (25) of the recesses (24) facing the centerline (M) run parallel to the partial plane (T) or include an angle with the latter, which is not greater than ±

15°

.

9. Radial-axial bearing (10) according to claim 7, wherein the thrust washer (14) is connected with the radial bearing part (12) by means of a welded connection (38).

10. Radial-axial bearing (10) according to claim 9, wherein the welded connection (38) is designed as a predetermined breaking point, which breaks during the start-up of the counter-rotor to be mounted.

11. Radial-axial bearing (10) according to according to claim 10, wherein the thrust washer (14) is welded with the radial bearing part (12) in a summit region of the bearing part (12).

12. Radial-axial bearing (10) according to claim 9, wherein the thrust washer (14) is welded with the radial bearing part (12) in a summit region of the bearing part (12).

13. Radial-axial bearing (10) according to claim 7, wherein the radial bearing part (12) is a bearing half-shell.