Running ring for a sleeve bearing

Patent metadata

Field	Value
Publication number	US-9518605-B2
Application number	US-201314437982-A
Country	US
Kind code	B2
Filing date	Oct 10, 2013
Priority date	Nov 7, 2012
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

A running ring ( 1 ) for a sleeve bearing, the running ring substantially including a cylindrical outer casing ( 3 ) or inner casing, the inner circumferential surface ( 5 ) or outer circumferential surface of which is formed as a raceway for bearing rollers, and two rims, which are formed on the axial end faces of the outer casing ( 3 ) or the inner casing and are oriented radially inward ( 7, 8 ) or outward, said rims being provided as an axial guide for the bearing rollers. According to the invention, the running ring ( 1 ) is characterized in that the two rims ( 7, 8 ) have a same wall thickness, and the two rims ( 7, 8 ) are produced by radially flanging over two grooves formed into the edge regions of the inner casing surface or the outer casing surface of a cylindrical starting sleeve, said grooves forming two recesses after the flanging process, wherein the recesses are arranged at a transition between the inner faces of the rims ( 7, 8 ) and the inner circumferential surface ( 5 ) of the outer casing ( 3 ) or the outer circumferential surface of the inner casing and are formed as lubricant reservoirs with a variable volume.

First claim

The invention claimed is:

1. A running ring for a sleeve bearing, comprising a cylindrical outer casing or inner casing, having an inner circumferential surface or outer circumferential surface constructed as a raceway for bearing rollers, and two radially inward or outward directed rims formed on axial end sides of the outer casing or the inner casing are provided as axial guidance for the bearing rollers, both of the rims have a same thickness and both of the rims are produced by radial flanging over two grooves formed in edge regions of the surface of the inner casing or the outer casing of a hollow cylindrical starting sleeve and form, after the flanging process, two recesses that are arranged at a transition of inner sides of the rims to the inner circumferential surface of the outer casing or to the outer circumferential surface of the inner casing and form variable volume lubricant reservoirs.

2. The running ring according to claim 1 , wherein both of the rims also have a same length and a thickness that corresponds at least approximately to a thickness of the cylindrical outer casing or the inner casing.

3. The running ring according to claim 1 , wherein the hollow cylindrical starting sleeve is formed by a sectioned ring section of a pipe or a cartridge-shaped deep drawn part with uniform thickness and separated bases.

4. The running ring according to claim 1 , wherein a shaping of the grooves in the edge regions of the inner casing surface or the outer casing surface of the starting sleeve is realized by a plunge cut turning method.

5. A running ring for a sleeve bearing produced from an individual pot-shaped deep drawn part and comprising a cylindrical outer casing with an inner circumferential surface constructed as a raceway for bearing rollers, and two radially inwardly directed rims that are formed on axial end sides of the outer casing and are provided for axial guidance of the bearing rollers, one of the rims is produced by punching of a circular, central part of a base of the deep drawn part, both of the rims have a same thickness and the other rim is produced by radial flanging over a groove that is formed in a free edge region of an inner casing surface of the deep drawn part and forms, after the flanging process, a recess that is arranged at a transition of an inner side of the rim to the inner circumferential surface of the outer casing and forms a variable volume lubricant reservoir.

6. The running ring according to claim 5 , wherein both of the rims have a same length and the thickness of the rims corresponds at least approximately to a thickness of the cylindrical outer casing.

7. The running ring according to claim 5 , wherein the forming of the groove in the edge region of the inner casing surface of the deep drawn part is produced by rolling without cutting.

8. The running ring according to claim 5 , wherein the deep drawn part is made from a through-hardened steel or from a case-hardened steel.

9. The running of claim 8 , wherein the through-hardened steel is 100Cr6, C80, or C45.

10. The running of claim 8 , wherein the case-hardened steel is 16MnCr5, C16, or 17Cr13.

Assignees

• Schaeffler Technologies Ag

Inventors

• Akyol Ekrem
• Schafers Heinz

Classifications

• F16C33/64

  Special methods of manufacture · CPC title

• F16C19/26

  with a single row of rollers · CPC title

• F16C33/6681

  Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements · CPC title

• F16C33/586 Primary

  outside the space between the races, e.g. end faces or bore of inner ring · CPC title

• F16C33/6614 Primary

  in recesses or cavities provided in retainers, races or rolling elements · CPC title