Rolling bearing, notably large-diameter rolling bearing

Patent metadata

Field	Value
Publication number	US-2023160421-A1
Application number	US-202217971569-A
Country	US
Kind code	A1
Filing date	Oct 22, 2022
Priority date	Nov 24, 2021
Publication date	May 25, 2023
Grant date	—

Abstract

A rolling bearing provides a first ring and a second ring capable of rotating concentrically relative to one another, at least one row of radial rolling elements radially interposed between raceways of the rings, and at least one row of axial rolling elements axially interposed between raceways of the rings. The rolling bearing further provides, axially on each side, at least one row of rolling elements radially interposed between raceways of the first and second rings.

First claim

1 . A rolling bearing comprising:
a first ring and a second ring capable of rotating concentrically relative to one another, at least one row of radial rolling elements radially interposed between raceways of the rings, and at least one row of axial rolling elements axially interposed between raceways of the rings, and axially on each side, at least one row of rolling elements radially interposed between raceways of the first and second rings.

2 . The rolling bearing according to claim 1 , further comprising at least a first row of rolling elements arranged axially between the row of axial rolling elements and first frontal faces of the first and second rings, and at least a second row of rolling elements axially located between the row of radial rolling elements and second opposite frontal faces of the first and second rings.

3 . The rolling bearing according to claim 1 , further comprising at least one additional row of axial rolling elements axially interposed between raceways of the first and second rings, the rows of axial rolling elements being spaced apart from each other in the axial direction.

4 . The rolling bearing according to claim 3 , further comprising at least a first row of rolling elements arranged axially between the row of axial rolling elements and first frontal faces of the first and second rings, and at least a second row of rolling elements axially located between the row of radial rolling elements and second opposite frontal faces of the first and second rings, and wherein the second row of rolling elements is axially located between the additional row of axial rolling elements and the second opposite frontal faces of the first and second rings.

5 . The rolling bearing according to claim 1 , wherein the second ring comprises a protruding nose engaged into an annular groove of the first ring and provided with an axial cylindrical surface onto which is formed the raceway of the second ring.

6 . The rolling bearing according to claim 5 , further comprising at least one additional row of axial rolling elements axially interposed between raceways of the first and second rings, the rows of axial rolling elements being spaced apart from each other in the axial direction, and wherein the row of axial rolling elements and the additional row of axial rolling elements are disposed axially on each side of the protruding nose of the second ring.

7 . The rolling bearing according to claim 1 , wherein each row of rolling elements is radially offset with respect to the row of axial rolling elements on the side opposite to the row of radial rolling elements.

8 . The rolling bearing according to claim 1 , wherein each row of rolling elements comprises radial cylindrical rollers.

9 . The rolling bearing according to claim 1 , wherein each row of rolling elements is located axially between shoulders of the first and second rings.

10 . The rolling bearing according to claim 9 , wherein the first ring is provided with at least one plug extending into an orifice formed on the first ring and provided with an end face which is flush with one of the radial shoulders of the first ring.

Assignees

• Skf Ab

Inventors

• Capoldi Bruno

Classifications

• F16C19/381 Primary

  with at least one row for radial load in combination with at least one row for axial load · CPC title

• F16C19/49

  Bearings with both balls and rollers · CPC title

• F16C33/4611

  with hybrid structure, i.e. with parts made of distinct materials · CPC title

• F16C19/38 Primary

  with two or more rows of rollers · CPC title

• F16C33/583

  Details of specific parts of races · CPC title