Bearing assembly

Patent metadata

Field	Value
Publication number	US-9447816-B2
Application number	US-201514715985-A
Country	US
Kind code	B2
Filing date	May 19, 2015
Priority date	May 30, 2014
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A bearing assembly, including: a housing having a through hole; first and second bearings coaxially set in the through hole, the first bearing is located at one end and the second bearing is located at an other end of the through hole, and both the first and second bearings include inner and outer rings. A first shaft sleeve is set between the first and the second bearing along an axial direction. An end cap located at the other end of the through hole, is connected with the housing and adapted to rotate relatively to the housing. The first bearing is located between the end cap and the first shaft sleeve along the axial direction. Accordingly, the end cap can be connected with the housing for preventing the end cap from falling out of the housing, thus the bearing assembly is configured into an integrated piece for transportation and usage.

First claim

What is claimed is:

1. A bearing assembly, comprising:
a housing having a through hole extending along an axial direction of the housing;
a first bearing and a second bearing coaxially set within the through hole, wherein the second bearing is located at one end of the through hole, the first bearing is located at an other end of the through hole, and each of the first bearing and the second bearing comprise an inner ring and an outer ring;
a first shaft sleeve set between the first bearing and the second bearing along the axial direction; and
an end cap located at the other end of the through hole, which is able to be connected with the housing and adapted to rotate relatively to the housing, wherein the first bearing is located between the end cap and the first shaft sleeve along the axial direction, the housing is configured with a first protrusion radially and inwardly extending from an inside wall of the housing; and the end cap is configured with a second protrusion radially and outwardly extending from an outside wall of the end cap, wherein the first protrusion and the second protrusion overlap in the axial direction and the housing and the end cap are able to be connected together via the first protrusion and the second protrusion.

2. The bearing assembly according to claim 1 , wherein one end of the end cap stands against the inner ring of the first bearing; and an other end of the end cap away from the first bearing is configured with an annular stopper which is radially and outwardly extended from the other end of the end cap, wherein the annular stopper and the housing define a gap therebetween along the axial direction, and the first protrusion, the second protrusion, and the annular stopper at least partially overlap one another along the axial direction.

3. The bearing assembly according to claim 1 , further comprising a second shaft sleeve, wherein one end of the second shaft sleeve stands against the inner ring of the first bearing, and the end cap is located at an other end of the second shaft sleeve away from the first bearing.

4. The bearing assembly according to claim 1 , further comprising an elastic element set in a space defined by the first shaft sleeve and the housing, wherein one end of the elastic element stands against the outer ring of the first bearing along the axial direction.

5. The bearing assembly according to claim 4 , wherein the elastic element is a wave spring.

6. The bearing assembly according to claim 1 , further comprising at least one conductive element, wherein the at least one conductive element radially runs through a sidewall of the housing with one end in contact with the outer ring of the first bearing and an other end extending outside the housing.

7. A bearing assembly, comprising:
a housing having a through hole extending along an axial direction of the housing;
a first bearing and a second bearing coaxially set within the through hole, wherein the second bearing is located at one end of the through hole, the first bearing is located at an other end of the through hole, and each of the first bearing and the second bearing comprise an inner ring and an outer ring;
a first shaft sleeve set between the first bearing and the second bearing along the axial direction; and
an end cap located at the other end of the through hole, which is able to be connected with the housing and adapted to rotate relatively to the housing, wherein the first bearing is located between the end cap and the first shaft sleeve along the axial direction,
wherein the housing is configured with a first protrusion radially and inwardly extending from an inside wall of the housing; and the end cap is configured with a second protrusion radially and outwardly extending from an outside wall of the end cap, wherein the housing and the end cap are able to be connected together via the first protrusion and the second protrusion,
further comprising a second shaft sleeve, wherein one end of the second shaft sleeve stands against the inner ring of the first bearing, and the end cap is located at an other end of the second shaft sleeve away from the first bearing, wherein the end cap comprises an annular cap body extending along a radial direction; a first folding part extending from an inner periphery of the cap body along the axial direction; and a second folding part extending from an outer periphery of the cap body along the axial direction, wherein the first folding part is held within the second shaft sleeve, and the second folding part is connected with the second protrusion.

8. The bearing assembly according to claim 7 , wherein the housing is configured with an annular groove for accommodating the second protrusion, wherein the annular groove has an inner surface facing the first protrusion along the axial direction, the second protrusion is set between the first protrusion and the inner surface along the axial direction, and the second protrusion is adapted to move within the annular groove along the axial direction.

9. A bearing assembly, comprising:
a housing having a through hole extending along an axial direction of the housing;
a first bearing and a second bearing coaxially set within the through hole, wherein the second bearing is located at one end of the through hole, the first bearing is located at an other end of the through hole, and each of the first bearing and the second bearing comprise an inner ring and an outer ring;
a first shaft sleeve set between the first bearing and the second bearing along the axial direction; and
an end cap located at the other end of the through hole, which is able to be connected with the housing and adapted to rotate relatively to the housing, wherein the first bearing is located between the end cap and the first shaft sleeve along the axial direction,
further comprising an elastic element set in a space defined by the first shaft sleeve and the housing, wherein one end of the elastic element stands against the outer ring of the first bearing along the axial direction
wherein the housing comprises a first portion; a second portion for accommodating the first bearing, the elastic element and the end cap; and a third portion for accommodating the second bearing, wherein the second portion and the third portion are respectively located at two ends of the first portion along the axial direction, the second portion has an inner diameter larger than that of the first portion to form a first shoulder at junction of the first portion and the second portion, and an other end of the elastic element stands against the first shoulder along the axial direction.

10. The bearing assembly according to claim 9 , wherein the third portion has an inner diameter larger than that of the first portion to form a second shoulder at junction of the first portion and the third portion, and the outer ring of the second bearing stands against the second shoulder along the axial direction.

11. The bearing assembly according to claim 10 , wherein the second portion is configured with a retainer radially and inwardly extending from an inside wall of the second portion, the retainer is located at one end of the second bearing away from the second shoulder, and stands against the outer ring of the second bearing.

Assignees

• Schaeffler Technologies Ag

Inventors

• Egbers Johann
• Meisel Harald
• Zhang Jianchang
• Shen Yanbin

Classifications

• F16C41/002

  Conductive elements, e.g. to prevent static electricity · CPC title

• F16C2340/18

  Apparatus for spinning or twisting · CPC title

• F16C19/06 Primary

  with a single row or balls · CPC title

• D01H1/00

  Spinning or twisting machines in which the product is wound-up continuously (open-end spinning machines D01H4/00 {; doubling of yarns B65H54/00+T; doubled, plied or cabled threads D02G3/28, e.g. using hollow spindles D02G3/283; spin-twisting D02G3/281; threads with alternately "S" and "Z" direction of twist, e.g. self-twist process, D02G3/286; wrapping strands of filaments or staple fibres by a binder yarn D02G3/38}) · CPC title

• F16C27/04

  Ball or roller bearings, e.g. with resilient rolling bodies · CPC title