Holder for self-aligning roller bearing and self-aligning roller bearing

Patent metadata

Field	Value
Publication number	US-12560201-B2
Application number	US-202118568332-A
Country	US
Kind code	B2
Filing date	Jun 11, 2021
Priority date	Jun 11, 2021
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A holder for a self-aligning roller bearing, having a central annular part with lintels fixed on side surfaces thereof in an axial direction and protruding parts which protrude closer to the outer sides in a radial direction than the lintels. The holder includes reinforcement parts fixed to the central annular part and the lintels on outer sides of the lintels in the radial direction and on outer sides of the protruding parts in the axial direction. In cross sections cut out along the axial direction and radial direction, at least a part of a contour line of outer side surfaces of the reinforcement parts in the axial direction extends inwardly in the radial direction while extending toward outwardly in the axial direction. A self-aligning roller bearing having the holder with improved connection strength of connection parts between the lintels and the central annular part prolongs bearing service life.

First claim

The invention claimed is:

1 . A holder for a self-aligning roller bearing, the holder has as a ring shape and comprises:
a central annular part; a plurality of lintels fixed to the central annular part; the central annular part extends continuously over an entire circumference along a circumferential direction of the holder; each of the lintels extends by a predetermined length along an axial direction of the holder, and the lintels are fixed on two side surfaces of the central annular part in an axial direction; on any side of the central annular part in the axial direction, the plurality of lintels are arranged at intervals in the circumferential direction to form pockets between adjacent ones of the lintels in the circumferential direction in which rolling elements of the self-aligning roller bearing are configured to be installed; the central annular part comprises protruding parts which protrude to positions that are closer to outer sides in a radial direction of the holder than the lintels; reinforcement parts fixed to the central annular part and the lintels, the reinforcement parts are located on outer sides of the lintels in the radial direction and are located on outer sides of the protruding parts in the axial direction; at parts of the holder where the lintels are disposed, in cross sections cut out along the axial direction and radial direction, at least a part of a contour line of outer side surfaces of the reinforcement parts in the axial direction extends toward an inner side in the radial direction while extending toward an outer side in the axial direction; wherein on an outer circumferential portion of the holder, two material removal sections are formed on the holder, the two material removal sections are deflected by 180 degrees relative to a circle center of the holder, and the two material removal sections are formed as curves on the outer circumferential portion.

2 . The holder for the self-aligning roller bearing according to claim 1 , wherein the contour line of the outer side surfaces in the axial direction extends from an outer circumferential surface of the central annular part to outer side surfaces of the lintels in the radial direction.

3 . The holder for the self-aligning roller bearing according to claim 1 , wherein along a path that the outer side surfaces extend in the axial direction from the lintels toward the central annular part, a width of the outer side surfaces in the axial direction increases in the circumferential direction.

4 . The holder for the self-aligning roller bearing according to claim 1 , wherein a number of the lintels on one side of the central annular part in the axial direction is equal to a number of the lintels on the other side of the central annular part in the axial direction, and the lintels on one side of the central annular part in the axial direction are aligned in the circumferential direction with the lintels on the other side of the central annular part in the axial direction.

5 . The holder for the self-aligning roller bearing according to claim 1 , wherein a center position of each of the material removal sections is located between two adjacent ones of the lintels in the circumferential direction.

6 . The holder for the self-aligning roller bearing according to claim 1 , wherein at the parts of the holder where the lintels are disposed, in cross sections which are cut out along the radial direction of rolling elements and are perpendicular to the axial direction of the rolling elements, contour lines of side surfaces of the reinforcement parts in the circumferential direction are straight lines or curves.

7 . A self-aligning roller bearing, comprising the holder for a self-aligning roller bearing according to claim 1 .

8 . The self-aligning roller bearing according to claim 7 , further comprising an outer ring, an inner ring and a plurality of rolling elements, the rolling elements are installed in pockets of the holder and are held between the outer ring and the inner ring by the holder, an outer circumferential surface of the central annular part of the holder is matched in shape with a raceway of the outer ring.

9 . The self-aligning roller bearing according to claim 8 , wherein the lintels and the reinforcement parts are configured so that the rolling elements only make contact with the lintels and are spaced apart from the reinforcement parts during use of the bearing.

10 . The self-aligning roller bearing according to claim 7 , wherein side surfaces of the lintels in the circumferential direction are formed with shapes matched with contours of the rolling elements.

11 . A holder for a self-aligning roller bearing, the holder comprises:
a central annular part that extends in a circumferential direction; a plurality of lintels fixed to opposing axial side surfaces of the central annular part, each of the lintels extends a predetermined length in an axial direction; the plurality of lintels are arranged at intervals in the circumferential direction on each of the axial side surfaces to form pockets between adjacent ones of the lintels in the circumferential direction in which rolling elements are configured to be installed; the central annular part comprises protruding parts which protrude radially outwardly in a radial direction further than the lintels; reinforcement parts fixed to the central annular part and the lintels are located on outer sides of the lintels in the radial direction and are located on outer sides of the protruding parts in the axial direction; at parts of the holder where the lintels are disposed, in cross sections taken along the axial direction and radial direction, at least a part of a contour line of outer side surfaces of the reinforcement parts in the axial direction extends toward an inner side in the radial direction and also extends toward an outer side in the axial direction; wherein a number of the lintels on one side of the central annular part in the axial direction is equal to a number of the lintels on the other side of the central annular part in the axial direction, and the lintels on one side of the central annular part in the axial direction are aligned in the circumferential direction with the lintels on the other side of the central annular part in the axial direction; and wherein on an outer circumferential portion of the holder, two material removal sections are formed on the holder, and the two material removal sections are offset by 180 degrees in a circumferential direction, and a center position of each of the material removal sections is located between two adjacent ones of the lintels in the circumferential direction.

12 . The holder for the self-aligning roller bearing according to claim 11 , wherein the contour line of the outer side surfaces in the axial direction extends from an outer circumferential surface of the central annular part to outer side surfaces of the lintels in the radial direction.

13 . The holder for the self-aligning roller bearing according to claim 11 , wherein along a path that the outer side surfaces extend in the axial direction from the lintels toward the central annular part, a width of the outer side surfaces in the axial direction increases in the circumferential direction.

14 . The holder for the self-aligning roller bearing according to claim 11 , wherein in a front view viewed along an axial direction, contour lines of parts of the holder where the material removal sections are formed are straight lines or curves protruding toward the outer side in the radial direction.

15 . The holder for the self-aligning roller bearing a

Assignees

• Schaeffler Technologies Ag

Inventors

• Cheng Tao
• Liu Jixuan
• Lv Yaofeng
• Gao Rong
• Xia Houqiao
• Huang Yunsheng

Classifications

• F16C33/497

  made from metal, e.g. cast or machined comb cages · CPC title

• F16C33/4605

  Details of interaction of cage and race, e.g. retention or centring · CPC title

• F16C23/086

  forming a track for rolling elements · CPC title

• F16C33/48

  for multiple rows of rollers or needles · CPC title

• F16C19/38 Primary

  with two or more rows of rollers · CPC title