Split bearing cage

Patent metadata

Field	Value
Publication number	US-10161449-B2
Application number	US-201715637014-A
Country	US
Kind code	B2
Filing date	Jun 29, 2017
Priority date	Jun 30, 2016
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A split bearing cage for a rolling-element bearing assembly includes a first bearing cage segment and a second bearing cage segment each having two side ring sections axially spaced apart by a plurality of bridges. Adjacent pairs of the bridges define rolling-element receiving pockets for receiving rolling elements of the rolling-element bearing assembly and for holding the rolling elements spaced apart from each other and for guiding the rolling elements. The first bearing cage segment is connected to the second bearing cage segment via a swivel joint that may be formed of a bolt element on a first end of the first bearing cage segment and an at least partial eyelet on the first end of the second bearing cage segment.

First claim

What is claimed is:

1. A split bearing cage for a rolling-element bearing assembly, the split bearing cage comprising: a first bearing cage segment and a second bearing cage segment each including two side ring sections axially spaced from one another by a plurality of bridges, adjacent pairs of the bridges defining rolling-element receiving pockets configured to receive rolling elements of the rolling-element bearing assembly and hold the rolling elements spaced apart from each other and to guide the rolling elements, wherein the first bearing cage segment is connected to the second bearing cage segment via a swivel joint, the swivel joint comprising a bolt element integrally formed with the first bearing cage element and an eyelet which is integrally formed with the second bearing cage element, the bolt element extending in the axial direction, the eyelet being configured open and being detachably engageable with the bolt element, wherein the bolt element has a longitudinal axis and comprises a plurality of annular ribs which extend outwardly therefrom, the plurality of annular ribs having an outer diameter equal to an outer diameter to be expected of the bearing cage with installed rolling elements.

2. The split bearing cage according to claim 1 , wherein the swivel joint includes a second eyelet.

3. The split bearing cage according to claim 2 , wherein the bolt element is axle-shaped and has two projecting annular ribs.

4. The split bearing cage according to claim 2 , wherein when the split bearing cage is assembled and the first bearing cage segment is fully engaged with the second bearing cage segment, the swivel joint occupies the same amount of space as a rolling element.

5. The split bearing cage according to claim 2 , wherein the eyelet element is a hook eyelet element that partially surrounds the bolt element.

6. The split bearing cage according to claim 5 ,
wherein a second cage segment end of the first bearing cage segment and a second cage segment end of the second bearing cage segment each include contact surface elements that are configured to form a bridge part when they touch, and
wherein the contact surface element of the second cage segment end of the first bearing cage segment is convex and the contact surface element of the second cage segment end of the second bearing cage segment is concave.

7. The split bearing cage according to claim 1 , wherein when the split bearing cage is assembled and the first bearing cage segment is fully engaged with the second bearing cage segment, the swivel joint occupies the same amount of space as a rolling element.

8. The split bearing cage according to claim 7 , wherein the first bearing cage segment and the second bearing cage segment are manufactured from a fiber-reinforced injection-moldable plastic.

9. The split bearing cage according to claim 8 , wherein when the split bearing cage is assembled and the first bearing cage segment is fully engaged with the second bearing cage segment, the swivel joint occupies the same amount of space as a rolling element.

10. The split bearing cage according to claim 9 , wherein a second cage segment end of the first bearing cage segment and a second cage segment end of the second bearing cage segment each include contact surface elements that are configured to form a bridge part when they touch.

11. The split bearing cage according to claim 1 , wherein a second cage segment end of the first bearing cage segment and a second cage segment end of the second bearing cage segment each include contact surface elements that are configured to form a bridge part when they touch.

12. The split bearing cage according to claim 11 , wherein the contact surface element of the second cage segment end of the first bearing cage segment is complementary to the second cage segment end of the second bearing cage segment.

13. The splint bearing cage according to claim 12 , wherein the contact surface element of the second cage segment end of the first bearing cage segment is convex and the contact surface element of the second cage segment end of the second bearing cage segment is concave.

14. The split bearing cage according to claim 11 , wherein the second cage segment end of the first bearing cage segment includes a latching hook configured to latch to the second cage segment end of the second bearing cage segment.

15. The split bearing cage according to claim 14 , wherein the latching hook extends substantially over the axial width of the first bearing cage segment.

16. The split bearing cage according to claim 1 , wherein the first bearing cage segment and the second bearing cage segment are manufactured from a fiber-reinforced injection-moldable plastic.

Assignees

• Skf Ab

Inventors

• Weiglein Juergen
• Meyer Franziska

Classifications

• F16C33/516

  with two segments, e.g. double-split cages with two semicircular parts · CPC title

• F16C2226/74

  with snap-fit, e.g. by clips · CPC title

• F16C33/3862 Primary

  comprising two annular parts joined together · CPC title

• F16C33/3875

  made from plastic, e.g. two injection moulded parts joined by a snap fit · CPC title

• F16C2220/04

  by injection-moulding · CPC title