Sliding bearing

Patent metadata

Field	Value
Publication number	US-9989086-B2
Application number	US-201615189364-A
Country	US
Kind code	B2
Filing date	Jun 22, 2016
Priority date	Jun 24, 2015
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

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 having a first axial end and a second axial end, the sliding bearing comprising a common one-piece bearing inner ring and a common one-piece bearing outer ring configured to rotate relative to each other about an axis (a), wherein the common one piece bearing inner ring and the common one-piece bearing outer ring each include two sliding surfaces, which sliding surfaces are configured to slide along each other, wherein the sliding surfaces are formed by the mutually contacting sliding surfaces has a maximum contact diameter (DK) at the first and second axial ends, wherein the common one-piece inner ring has a radially inner surface that in cross section is formed by a single axially extending radial surface, wherein at least parts of the sliding surfaces in a radial section have an arcuate shape having a radius of curvature (rB), and wherein the radius of curvature (rB) 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 (rB), wherein the radius of curvature (rB) is from 150% to 600% of the maximum contact diameter (DK), the common one-piece inner ring and the common one-piece outer ring being out of contact along a portion of an axial bearing length that is spaced from the first and second axial ends.

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

3. The sliding bearing according to claim 1 , wherein the radius of curvature (rB) is from 200% to 400% of the maximum contact diameter (DK).

4. The sliding bearing according to claim 1 , wherein the common one-piece bearing inner ring comprises a shaft.

5. The sliding bearing according to claim 1 , wherein the common one-piece bearing outer ring comprises a stationary machine part or housing.

6. The bearing according to claim 5 , wherein an elastic material comprising a coating is applied to the common one-piece bearing inner ring and/or the common one-piece bearing outer ring.

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

Assignees

• Buettner Martin
• Skf Ab

Inventors

• Buettner Martin

Classifications

• F16C2240/70

  Diameters; Radii · CPC title

• F16C33/205

  with two layers · CPC title

• F16C33/20

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

• F16C2223/30

  Coating surfaces · CPC title

• F16C2220/24

  by built-up welding · CPC title