Angular contact ball bearing cage

Patent metadata

Field	Value
Publication number	US-10247240-B2
Application number	US-201715807944-A
Country	US
Kind code	B2
Filing date	Nov 9, 2017
Priority date	Nov 17, 2016
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

An angular contact ball bearing cage includes a plurality of pockets. At least one (imaginary) sectional plane extends through a first pocket, and the sectional plane is located such that an axis of rotation of the angular contact ball bearing cage lies in the sectional plane. The axis of rotation is an axis about which the angular contact ball bearing cage is configured to rotate in operation. A geometric centerpoint of the first pocket lies in the sectional plane, and an intersection of the sectional plane and a side of the first pocket includes a first portion that is not linear and that does not lie on the surface of a cone.

First claim

What is claimed is:

1. An angular contact ball bearing cage comprising a plurality of pockets,
wherein at least one sectional plane extends through a first pocket,
wherein the sectional plane is located such that an axis of rotation of the angular contact ball bearing cage lies in the sectional plane,
wherein the axis of rotation is an axis about which the angular contact ball bearing cage is configured to rotate in operation,
wherein a geometric centerpoint of the first pocket lies in the sectional plane,
wherein an intersection of the sectional plane and a side of the first pocket includes a first portion and a second portion, the first portion is not linear and does not lie on the surface of a cone, the second portion is located radially upwardly relative to the first portion and lies on an imaginary hollow cylinder having a non-circular base, and
wherein an opening into which the first pocket opens is in a radially outer region of the angular contact ball bearing cage and has the shape of a slot, wherein the slot has a maximum extension in a circumferential direction.

2. The angular contact ball bearing cage according to claim 1 , wherein the first portion is differentiable at all points.

3. The angular contact ball bearing cage according to claim 1 , wherein the first portion lies on a surface of a torus.

4. The angular contact ball bearing cage according to claim 3 , wherein a cage pocket angle of the first pocket is from 10° to 15°.

5. The angular contact ball bearing cage according to claim 1 , wherein the first portion lies on a surface of a torus.

6. The angular contact ball bearing cage according to claim 5 , wherein a cage pocket angle of the first pocket is from 10° to 15°.

7. The angular contact ball bearing cage according to claim 1 , wherein the angular contact ball bearing cage is made of brass and/or aluminum.

8. The angular contact ball bearing cage according to claim 1 , wherein at least one part of a radially outer surface of the angular contact ball bearing cage is curved in an axial direction.

9. An angular contact ball bearing including an angular contact ball bearing cage according claim 1 .

Assignees

• Skf Ab

Inventors

• Landerl Helmut
• Mocnik Alexander

Classifications

• F16C2204/20

  Alloys based on aluminium · CPC title

• F16C2204/14

  with zinc as the next major constituent · CPC title

• F16C33/385 Primary

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

• F16C19/163

  with angular contact · CPC title

• F16C2300/22

  High-speed rotation · CPC title