Bearing assembly

Patent metadata

Field	Value
Publication number	US-10422375-B2
Application number	US-201715633860-A
Country	US
Kind code	B2
Filing date	Jun 27, 2017
Priority date	Jun 28, 2016
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

A multi-row bearing assembly includes first and second rolling-element bearings having first and second bearing rings and first and second rows of rolling elements therebetween, respectively, each ring having exactly one guide flange. An intermediate space exists between the first and second rows of rolling elements, and a first side of each row of rolling elements faces the intermediate space and a second side of each row of the rolling elements is remote from the intermediate space. The guide flanges of the first and third bearing rings guide the first sides of the rolling elements, and the guide flanges of the second and fourth bearing rings guide the second sides of the rolling elements.

First claim

What is claimed is:

1. A multi-row bearing assembly comprising:
a first rolling-element bearing having a first bearing ring and a second bearing ring and a first row of rolling elements between the first bearing ring and the second bearing ring, the first bearing ring and the second bearing ring each having exactly one rolling-element guide flange;
a second rolling-element bearing axially adjacent to and formed separately from the first rolling-element bearing, the second rolling-element bearing having a third bearing ring and a fourth bearing ring and a second row of rolling elements between the third bearing ring and the fourth bearing ring, the third bearing ring and the fourth bearing ring each having exactly one rolling-element guide flange; and
an intermediate space between the first row of rolling elements and the second row of rolling elements,
wherein the first row of rolling elements has a first side facing the intermediate space and a second side remote from the intermediate space and the second row of rolling elements has a first side facing the intermediate space and a second side remote from the intermediate space,
wherein the guide flange of the first bearing ring is configured to guide the first side of the first row of rolling elements and the guide flange of the third bearing ring is configured to guide the first side of the second row of rolling elements and the guide flange of the second bearing ring is configured to guide the second side of the first row of rolling elements and the guide flange of the fourth bearing ring is configured to guide the second side of the second row of rolling elements,
wherein the first bearing ring and the third bearing ring each includes an annular groove and a retaining ring engaged in the annular grooves to connect the first bearing ring to the third bearing ring, and
wherein the annular groove of the first bearing ring is disposed on a radially inwardly directed surface of the guide flange of the first bearing ring and the annular groove of the third bearing ring is disposed on a radially inwardly directed surface of the guide flange of the third bearing ring.

2. The multi-row bearing assembly according to claim 1 , wherein the first bearing ring is connected to the third bearing ring via an interference fit.

3. The multi-row bearing assembly according to claim 2 , wherein the retaining ring is a clip connecting the first bearing ring to the third bearing ring.

4. The multi-row bearing assembly according to claim 1 , wherein the first rolling-element bearing and the second rolling-element bearing are disposed essentially mirror-symmetrically with respect to each other.

5. The multi-row bearing assembly according to claim 1 , wherein the first bearing ring is an outer bearing ring of the first rolling-element bearing and the third bearing ring is an outer ring of the second rolling-element bearing.

6. The multi-row bearing assembly according to claim 1 , wherein the second bearing ring is an inner bearing ring of the first rolling-element bearing and the fourth bearing ring is an inner ring of the second rolling-element bearing.

7. A cable sheave bearing comprising the multi-row bearing assembly according to claim 1 .

8. A multi-row bearing assembly comprising:
a first rolling-element bearing having a first bearing ring and a second bearing ring and a first row of rolling elements between the first bearing ring and the second bearing ring, the first bearing ring and the second bearing ring each having exactly one rolling-element guide flange;
a second rolling-element bearing axially adjacent to and formed separately from the first rolling-element bearing, the second rolling-element bearing having a third bearing ring and a fourth bearing ring and a second row of rolling elements between the third bearing ring and the fourth bearing ring, the third bearing ring and the fourth bearing ring each having exactly one rolling-element guide flange; and
an intermediate space between the first row of rolling elements and the second row of rolling elements,
wherein the first row of rolling elements has a first side facing the intermediate space and a second side remote from the intermediate space and the second row of rolling elements has a first side facing the intermediate space and a second side remote from the intermediate space,
wherein the guide flange of the first bearing ring is configured to guide the first side of the first row of rolling elements and the guide flange of the third bearing ring is configured to guide the first side of the second row of rolling elements and the guide flange of the second bearing ring is configured to guide the second side of the first row of rolling elements and the guide flange of the fourth bearing ring is configured to guide the second side of the second row of rolling elements,
wherein the first bearing ring and the third bearing ring each includes an annular groove and a retaining ring engaged in the annular grooves to connect the first bearing ring to the third bearing ring,
wherein the annular groove of the first bearing ring is disposed on a radially outwardly directed surface of the first bearing ring and the annular groove of the third bearing ring is disposed on a radially outwardly directed surface of the third bearing ring, and
wherein the radially outward directed surface of the first bearing ring faces away from the bearing interior and the radially outward directed surface of the third bearing ring faces away from the bearing interior.

9. A multi-row bearing assembly comprising:
a first rolling-element bearing having a first bearing ring and a second bearing ring and a first row of rolling elements between the first bearing ring and the second bearing ring, the first bearing ring and the second bearing ring each having exactly one rolling-element guide flange;
a second rolling-element bearing axially adjacent to and formed separately from the first rolling-element bearing, the second rolling-element bearing having a third bearing ring and a fourth bearing ring and a second row of rolling elements between the third bearing ring and the fourth bearing ring, the third bearing ring and the fourth bearing ring each having exactly one rolling-element guide flange; and
an intermediate space between the first row of rolling elements and the second row of rolling elements,
wherein the first row of rolling elements has a first side facing the intermediate space and a second side remote from the intermediate space and the second row of rolling elements has a first side facing the intermediate space and a second side remote from the intermediate space,
wherein the guide flange of the first bearing ring is configured to guide the first side of the first row of rolling elements and the guide flange of the third bearing ring is configured to guide the first side of the second row of rolling elements and the guide flange of the second bearing ring is configured to guide the second side of the first row of rolling elements and the guide flange of the fourth bearing ring is configured to guide the second side of the second row of rolling elements,
wherein the first bearing ring and the third bearing ring each includes an annular groove and a retaining ring engaged in the annular grooves to connect the first bearing ring to the third bearing ring, and
wherein the annular groove of the first bearing ring faces an interior of the bearing assembly and the annular groove of the third bearing ring faces the interior of the bearing assembly.

10. A multi-row bearing assembly comprising:
a first rolling-element bearing having a first bearing ring and a second bearing ring and a first row of rolling elements between the first bearing

Assignees

• Skf Ab

Inventors

• Schmitz Tom
• Groschek Bernhard
• Schmal Robert

Classifications

• F16C33/585

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

• F16C19/54

  Systems consisting of a plurality of bearings with rolling friction (spindle bearings F16C35/08) · CPC title

• F16C19/26

  with a single row of rollers · CPC title

• F16C43/04 Primary

  Assembling rolling-contact bearings · CPC title

• F16C2226/74

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