Component of a universal joint bearing

Abstract

A component of a universal joint bearing includes at least one casing having a cylindrical wall and a base and at least one formation projecting from the base. The at least one formation is receivable in a clamp of a rotational processing machine to secure the component to the rotational processing machine during a rotational machining of a wall of the component. Also a method that includes clamping the component by the formation and machining inner and outer surfaces of the component without unclamping the component.

Claims

1. A component of a universal joint bearing comprising: at least one radially outer surface region that has the shape of a cylindrical casing, a base that includes a flat base surface on an outer side, and at least one cylindrical formation projecting from the base, the cylindrical formation provides a clampable surface for a rotational machining of a wall of the at least one radially outer surface region.

2. The component according to claim 1, wherein the formation is an elevation extending away from an inner side of the component starting from a surface of the base.

3. The component according to claim 1, wherein the elevation has at least one height of 0.5 mm relative to the base surface.

4. The component according to claim 1, wherein the elevation has at least one height of at least 0.1 mm relative to the base surface.

5. The component according to claim 1, wherein the formation is substantially pot-shaped.

6. The component according to claim 1, including a raceway on an inner side configured to support a plurality of rolling elements.

7. The component according to claim 6, including the plurality of rolling elements.

8. The component according to claim 1, wherein the elevation has at least one height of at least 0.1 mm relative to the base surface, wherein the formation is substantially pot-shaped, and including a raceway on an inner side of the component configured to support a plurality of rolling elements.

9. A universal joint bearing including the component of claim 1.

10. A method for processing a wall of a component of a universal joint bearing, the method comprising: clamping the component by a formation on a base of the component, while the component is clamped, machining an inner cylindrical surface or an outer cylindrical surface of the component, and without unclamping the formation, machining the outer cylindrical surface or the inner cylindrical surface of the component.

11. The method according to claim 10, wherein the machining comprises a rotational machining.

12. The method according to claim 10, wherein the formation has at least one height of 0.5 mm relative to the base.

13. The method according to claim 10, wherein the elevation has at least one height of at least 0.1 mm relative to the base.

14. The method according to claim 10, wherein the formation is substantially pot-shaped.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a sectional elevational view of a portion of a conventional universal joint bearing.

(2) FIG. 2 is a sectional elevational view of a portion of a universal joint bearing according to the present disclosure.

DETAILED DESCRIPTION

(3) FIG. 1 shows a longitudinal section through a universal joint bearing of the prior art. A pot-shaped component of the universal joint bearing includes an essentially flat base surface 11.

(4) FIG. 2 shows a longitudinal section along an axial direction of a universal joint bearing including a component 20 according to the disclosure. The component includes a radially outer surface region 10 that has the shape of a cylindrical casing. The component comprises a base 14 that includes an essentially flat base surface 22 on its underside. The component further includes a formation 16 on its base at which the component is clampable for a rotational machining of a wall 18 of the component. The formation 16 is an elevation or projection that extends away from an inner side 24 of the component starting from the base surface 14. The elevation has a height of approximately 5 mm relative to the base surface 14. Furthermore, the elevation is configured pot-shaped or cup-shaped.

(5) The component includes a raceway 12 on its inner side on which rolling elements 26, which form a first set of rolling elements, roll during operation. In addition to the raceway 12 a further raceway is disposed on the inner side, on which further raceway a second set of rolling elements rolls during operation. Inner-ring raceways are formed by a pin 28 of a joint cross of a universal joint. In addition, the universal joint bearing includes a seal that seals between the pin and an end of the component 20 that is facing away from the formation 16.

(6) The component 20 is configured one-piece.

(7) In a method for manufacturing the wall 18, wherein a preform of the wall 18, which can also be referred to as wall, is used as a starting material, the component is clamped on the formation 16 and subsequently, while the component remains clamped on the formation, the wall is processed by a lathe tool on the inner side 24 and on the radial outer side of the wall. A thickness of the wall 18 is thereby set very precisely. Here the advantage is exploited that by clamping the wall on the formation 16 both outer side and inner side are accessible for the rotational machining With such a clamping on the formation 16 it is further advantageous that the radial outer edge of the base 14 is also accessible for a processing, in particular for a rotational machining or lathing. In a fully assembled state a securing ring abuts on this edge of the base.

(8) Representative, non-limiting examples of the present invention were described above in detail with reference to the attached drawings. This detailed description is merely intended to teach a person of skill in the art further details for practicing preferred aspects of the present teachings and is not intended to limit the scope of the invention. Furthermore, each of the additional features and teachings disclosed above may be utilized separately or in conjunction with other features and teachings to provide improved universal joint bearing components.

(9) Moreover, combinations of features and steps disclosed in the above detailed description may not be necessary to practice the invention in the broadest sense, and are instead taught merely to particularly describe representative examples of the invention. Furthermore, various features of the above-described representative examples, as well as the various independent and dependent claims below, may be combined in ways that are not specifically and explicitly enumerated in order to provide additional useful embodiments of the present teachings.

(10) All features disclosed in the description and/or the claims are intended to be disclosed separately and independently from each other for the purpose of original written disclosure, as well as for the purpose of restricting the claimed subject matter, independent of the compositions of the features in the embodiments and/or the claims. In addition, all value ranges or indications of groups of entities are intended to disclose every possible intermediate value or intermediate entity for the purpose of original written disclosure, as well as for the purpose of restricting the claimed subject matter.

REFERENCE NUMBER LIST

(11) 10 Surface region

(12) 11 Base surface

(13) 12 Raceway

(14) 14 Base

(15) 16 Formation

(16) 18 Wall

(17) 20 Component

(18) 22 Base surface

(19) 24 Inner side

(20) 26 Rolling elements

(21) 28 Pin