Sliding bearing

Patent metadata

Field	Value
Publication number	US-2016377115-A1
Application number	US-201615189364-A
Country	US
Kind code	A1
Filing date	Jun 22, 2016
Priority date	Jun 24, 2015
Publication date	Dec 29, 2016
Grant date	—

Abstract

A sliding bearing includes at least one bearing inner ring and at least one bearing outer ring configured to rotate relative to each other about an axis (a), where the rings each include at least one sliding surface, the sliding surfaces being configured to slide along each other, and where the contact surface formed by the mutually contacting sliding surfaces has a maximum contact diameter (D K ). At least parts of the sliding surfaces in a radial section have a radius of curvature (r B ), the radius of curvature (r B ) has a centerpoint (M) located at an offset (b) from the axis (a), and the offset (b) is at least 5% of the radius of curvature (r B ).

First claim

What is claimed is:

1 . A sliding bearing comprising at least one bearing inner ring and at least one bearing outer ring configured to rotate relative to each other about an axis (a), wherein the at least one bearing inner ring and the at least one bearing outer ring each include at least one sliding surface, which sliding surfaces are configured to slide along each other, wherein the contact surface formed by the mutually contacting sliding surfaces has a maximum contact diameter (D K ), wherein at least parts of the sliding surfaces in a radial section have an arcuate shape having a radius of curvature (r B ), and wherein the radius of curvature (r B ) has a centerpoint (M) located at an offset (b) from the axis (a), the offset (b) being at least 5% of the radius of curvature (r B ).

2 . The sliding bearing according to claim 1 , wherein the offset (b) is at least 50% of the radius of curvature (r B ).

3 . The sliding bearing according to claim 1 , wherein the radius of curvature (r B ) is at least 150% of the maximum contact diameter (D K ) or at most 40% of the maximum contact diameter (D K ).

4 . The sliding bearing according to claim 3 , wherein the radius of curvature (r B ) is from 150% to 600% of the maximum contact diameter (D K ).

5 . The sliding bearing according to claim 3 , wherein the radius of curvature (r B ) is from 200% to 400% of the maximum contact diameter (D K ).

6 . The sliding bearing according to claim 3 , wherein the radius of curvature (r B ) is from 5% to 15% of the maximum contact diameter (D K ).

7 . The sliding bearing according to claim 1 , wherein the at least one bearing inner ring comprises a shaft.

8 . The sliding bearing according to claim 1 , wherein the at least one bearing outer ring comprises a stationary machine part or housing.

9 . The sliding bearing according to claim 1 , wherein at least the sliding surface of the at least one bearing inner ring and/or the at least one bearing outer ring comprises an elastic material or a fiber-reinforced fabric material.

10 . The bearing according to claim 8 , wherein the elastic material comprises a coating applied to the at least one bearing inner ring and/or the at least one bearing outer ring.

11 . The sliding bearing according to claim 1 , wherein the at least one bearing inner ring and/or the at least one bearing outer ring is formed at least two-part.

12 . The sliding bearing according to claim 1 , wherein the at least one bearing inner ring and/or the at least one bearing outer ring is manufactured by 3-D printing.

13 . The sliding bearing according to claim 1 , wherein two sliding bearing regions including common bearing rings are disposed axially adjacent to each other.

14 . The sliding bearing according to claim 1 ,
wherein the offset (b) is at least 50% of the radius of curvature (r B ), wherein the radius of curvature (r B ) is at least 150% of the maximum contact diameter (D K ) or at most 40% of the maximum contact diameter (D K ), wherein the at least one bearing inner ring comprises a shaft, wherein the at least one bearing outer ring comprises a housing, and wherein at least the sliding surface of the shaft and/or housing comprises an elastic material or a fiber-reinforced fabric material.

15 . A sliding bearing comprising:
a bearing inner ring having a sliding surface; and a bearing outer ring having a sliding surface and being configured to rotate relative to the bearing inner ring about an axis of rotation, the sliding surface of the bearing inner ring contacting the sliding surface of the bearing outer ring along a contact surface; wherein the contact surface has a maximum contact diameter (D K ), wherein the contact surface has, in radial section, a radius of curvature (r B ), wherein the radius of curvature (r B ) has a centerpoint (M) located at an offset (b) from the axis (a), and wherein the offset (b) is at least 5% of the radius of curvature (r B ).

16 . The sliding bearing according to claim 15 , wherein the radius of curvature (r B ) is at least 150% of the maximum contact diameter (D K ) or at most 40% of the maximum contact diameter (D K ).

17 . The sliding bearing according to claim 16 , wherein the radius of curvature (r B ) is from 200% to 400% of the maximum contact diameter (D K ).

18 . The sliding bearing according to claim 16 , wherein the radius of curvature (r B ) is from 5% to 15% of the maximum contact diameter (D K ).

Assignees

• Buettner Martin
• Skf Ab

Inventors

• Buettner Martin

Classifications

• F16C33/20

  Sliding surface consisting mainly of plastics (F16C33/22 - F16C33/28 take precedence) · CPC title

• F16C17/10 Primary

  for both radial and axial load · CPC title

• F16C33/046

  divided or split, e.g. half-bearings or rolled sleeves · CPC title

• F16C33/205

  with two layers · CPC title

• F16C27/02

  Sliding-contact bearings · CPC title