Rolling bearing with wire races

Patent metadata

Field	Value
Publication number	US-11248655-B2
Application number	US-202017096410-A
Country	US
Kind code	B2
Filing date	Nov 12, 2020
Priority date	Dec 19, 2019
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

A rolling bearing having a first ring and second ring capable of rotating concentrically relative to one another, at least one first wire race mounted in the first ring, at least one second wire race mounted in the second ring, and at least one row of radial rollers radially interposed between raceways provided on the first and second wire races. The second ring provides at least two guide flanges to axially retain therebetween the row of radial rollers. The axial length of the raceway of the first wire race is greater than the axial length of the raceway of the second wire race.

First claim

The invention claimed is:

1. A rolling bearing having an axis of rotation, the rolling bearing comprising:
a first ring and second ring capable of rotating concentrically relative to one another,
at least one first wire race mounted in the first ring to form a first raceway which is parallel to the axis of rotation,
at least one second wire race mounted in the second ring to form a second raceway, which is parallel to the axis of rotation, and
at least one row of radial rollers radially interposed between raceways provided on the first and second wire races, each of the rollers in the at least one row of radial rollers having a roller axial width, the second ring comprising at least two guide flanges that axially retain the row of radial rollers disposed therebetween, wherein
a first axial length of the first raceway is greater than a second axial length of the second raceway, the first axial length being greater than the roller axial width.

2. The rolling bearing according to claim 1 , wherein the second axial width is less than the roller axial width.

3. The rolling bearing according to claim 2 , wherein the first raceway axially protrudes outwards on each side of the radial rollers of the row.

4. The rolling bearing according to claim 1 , wherein a retaining rib extends from an axial cylindrical surface of the first ring from which is formed a groove inside which the at least one first wire race is disposed.

5. The rolling bearing according to claim 4 , wherein the retaining rib extends from a wall of the groove of the first ring.

6. The rolling bearing according to claim 1 , wherein the guide flanges of the second ring extend radially beyond the axes of rotation of the radial rollers of the row.

7. The rolling bearing according to claim 1 , wherein the first ring is an outer ring, and the second ring is an inner ring.

8. The rolling bearing according to claim 1 , wherein the first ring, the second ring, and the at least one row of radial rollers are aligned only axially.

9. A rolling bearing comprising:
a first ring and second ring capable of rotating concentrically relative to one another,
at least one first wire race mounted in the first ring,
at least one second wire race mounted in the second ring, and
at least one row of radial rollers radially interposed between raceways provided on the first and second wire races, the second ring comprising at least two guide flanges that axially retain the row of radial rollers disposed therebetween, wherein
the axial length of the raceway of the first wire race is greater than the axial length of the raceway of the second wire race, and wherein
the first ring comprises at least one retaining rib extending into the radial space that exists between the first and second rings and towards the second ring, the retaining rib protruding radially relative to the raceway of the first wire race.

10. The rolling bearing according to claim 9 , wherein the retaining rib is axially spaced from the radial rollers of the row.

11. The rolling bearing according to claim 9 , wherein the retaining rib and the first ring are one part.

12. The rolling bearing according to claim 9 , wherein the first ring, the second ring, and the at least one row of radial rollers are aligned only axially.

13. A rolling bearing comprising:
a first ring comprising an outer ring,
a second ring comprising an inner ring, the first ring and the second ring being capable of rotating concentrically relative to one another,
at least one first wire race mounted in the first ring,
at least one second wire race mounted in the second ring, and
at least one row of radial rollers radially interposed between raceways provided on the first and second wire races, the second ring comprising at least two guide flanges that axially retain the row of radial rollers disposed therebetween, wherein
the axial length of the raceway of the first wire race is greater than the axial length of the raceway of the second wire race.

14. The rolling bearing according to claim 13 , wherein the axial length of the raceway of the first wire race is greater than the axial length of the radial rollers of the row.

15. The rolling bearing according to claim 14 , wherein the raceway of the first wire race axially protrudes outwards on each side of the radial rollers of the row.

16. The rolling bearing according to claim 13 , wherein a retaining rib extends from an axial cylindrical surface of the first ring from which is formed a groove inside which the at least one first wire race is disposed.

17. The rolling bearing according to claim 16 , wherein the retaining rib extends from the wall of the groove of the first ring.

18. The rolling bearing according to claim 13 , wherein the first ring, the second ring, and the at least one row of radial rollers are aligned only axially.

19. A rolling bearing having an axis of rotation, the rolling bearing comprising:
a first ring and second ring capable of rotating concentrically relative to one another,
at least one first wire race mounted in the first ring to form a first raceway which is parallel to the axis of rotation,
at least one second wire race mounted in the second ring to form a second raceway, which is parallel to the axis of rotation,
at least one row of radial rollers radially interposed between raceways provided on the first and second wire races, each of the rollers in the at least one row of radial rollers having a roller axial width, and
wherein, when viewed in cross-section, the first raceway radially protrudes from a radially innermost surface of the first ring.

20. The rolling bearing according to claim 19 , wherein the first ring, the second ring, and the at least one row of radial rollers are aligned only axially.

Assignees

• Skf Ab

Inventors

• Dondaine Herve
• Guerard Arnaud
• Oliveira Joshua

Classifications

• F16C33/7856

  with a single sealing lip · CPC title

• F16C33/585 Primary

  of raceways, e.g. ribs to guide the rollers · CPC title

• F16C33/7809

  for needle roller bearings · CPC title

• F16C33/62

  Selection of substances · CPC title

• F16C2300/14

  Large applications, e.g. bearings having an inner diameter exceeding 500 mm · CPC title