Wheel hub bearing bore

Patent metadata

Field	Value
Publication number	US-2016031259-A1
Application number	US-201514752458-A
Country	US
Kind code	A1
Filing date	Jun 26, 2015
Priority date	Jul 30, 2014
Publication date	Feb 4, 2016
Grant date	—

Abstract

In some examples, an aircraft wheel assembly includes an axle, a bearing assembly, and a hub defining a bearing bore. The bearing bore may be configured such that the dynamic radial and axial thrust bearing reactions between the axle and the hub results in a first reaction force F R applied to the hub, the first reaction force F R having a radial component, and a second reaction force F N applied to the hub, the second reaction force F N having both a radial and an axial component.

First claim

What is claimed is:

1 . A vehicle wheel assembly comprising:
an axle; a bearing assembly; and a hub configured to rotate relative to the axle and defining a bearing bore, wherein the bearing assembly is positioned between the axle and the hub, and wherein the bearing bore is configured such that a reaction between the axle and the hub results in a first reaction force F R applied to the hub, the first reaction force F R having a radial component, and a second reaction force F N applied to the hub, the second reaction force F N having both a radial and an axial component.

2 . The vehicle wheel assembly of claim 1 , further comprising:
an inboard annular wheel component comprising the hub; and an outboard annular wheel component configured to engage with the inboard annular wheel component, the inboard annular wheel component and the outboard annular wheel component being configured to support a tire.

3 . The vehicle wheel assembly of claim 1 , wherein the bearing bore is configured to distribution reaction forces between the hub and the axle through a thickest portion of the hub.

4 . The vehicle wheel assembly of claim 1 , wherein the bearing assembly comprises:
an axle sleeve configured to contact the axle; a bearing cone; a bearing roller, wherein the bearing cone is positioned between the bearing roller and the bearing cone; a bearing cup, wherein the bearing roller is configured to provide relative rotational movement between the bearing cone and the bearing cup; and a bearing spacer positioned between the hub and the bearing cone, bearing roller, and the bearing cup.

5 . The vehicle wheel assembly of claim 1 , wherein the bearing assembly comprises a bearing spacer configured to engage with the bearing bore, wherein the bearing spacer defines a compound radius.

6 . The vehicle wheel assembly of claim 1 , wherein the bearing bore has a compound radius comprising a first radius of about 1.78 cm and a second radius of about 5.94 cm.

7 . The vehicle wheel assembly of claim 1 , wherein the axle is an axle of an aircraft wheel assembly.

8 . A method comprising:
forming a hub defining a bearing bore, wherein the bearing bore is configured such that when the hub is mounted on an axle of a vehicle via a bearing assembly, a reaction between the axle and the hub results in a first reaction force F R applied to the hub, the first reaction force F R having a radial component, and a second reaction force F N applied to the hub, the second reaction force F N having both a radial and an axial component; and cold working the bearing bore.

9 . The method of claim 8 , wherein forming the hub comprises at least one of forging, casting or molding the hub.

10 . The method of claim 8 , wherein forming the hub comprises at least one of milling, turning, grinding, electrical discharge machining (EDM), or laser or torch cutting the hub from a starting piece of material.

11 . The method of claim 8 , wherein forming the hub comprises defining the bearing bore having a a compound radius comprising a first radius of about 1.78 cm and a second radius of about 5.94 cm.

12 . A method comprising:
positioning a bearing assembly on an axle of a vehicle wheel assembly; and mounting a hub on the axle, Wherein the bearing assembly is positioned between the axle and the hub, and the hub configured to rotate relative to the axle and defines a bearing bore, and wherein the bearing bore is configured such that a reaction between the axle and the hub results in a first reaction force F R applied to the hub, the first reaction force F R having a radial component, and a second reaction force F N applied to the hub, the second reaction force F N having both a. radial and an axial component.

13 . The method of claim 12 , wherein mounting the hub on the axle comprises mounting an inboard annular wheel component comprising the hub on the axle, the method further comprising connecting an outboard annular wheel component to the inboard wheel component, inboard annular wheel component and the outboard annular wheel component being configured to support a tire.

14 . The method of claim 12 , wherein the bearing bore is configured to distribution reaction forces between the hub and the axle through a thickest portion of the hub.

15 . The method of claim 12 , wherein the bearing assembly comprises:
an axle sleeve configured to contact the axle; a bearing cone; a bearing roller, wherein the bearing cone is positioned between the bearing roller and the bearing cone; a bearing cup, wherein the bearing roller is configured to provide relative rotational movement between the bearing cone and the bearing cup; and a bearing spacer positioned between the hub and the bearing cone, bearing roller, and the bearing cup.

Assignees

• Honeywell Int Inc

Inventors

• Champion Jon

Classifications

• B60B27/0078

  characterised by the fixation of bearings · CPC title

• B60B2900/321

  Lifetime · CPC title

• B60B2310/228

  by machining · CPC title

• B64C25/36

  Arrangements or adaptations of wheels, tyres or axles in general · CPC title

• F16C2326/02

  Wheel hubs or castors · CPC title