Vehicle wheel hub mounting system

• US 6,422,657 B2
• Filed: 03/06/2001
• Issued: 07/23/2002
• Est. Priority Date: 11/14/1996
• Status: Expired due to Fees

• Current Assignee: Kelsey-Hayes Co. (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: Kelsey-Hayes Co. (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Straub, Thomas A., Di Ponio, Victor M.
• Primary Examiner(s): Stormer, Russell D.
• Application Number:
  US09/800,439
• Publication Number:
  US 20010026095A1
• Time in Patent Office: 504 Days
• Field of Search: 301/105.1, 301/124.1, 301/125, 301/126, 301/131, 180/252, 180/258, 180/259, 188/218.XL, 384/544
• US Class Current: 301/105.1
• CPC Class Codes: B60B 27/00 Hubs non-metallic B60B5/00; of high resiliency B60B9/00
• CPC Class Codes: B60B 27/001 with roller-bearings
• CPC Class Codes: F16C 19/364 with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
• CPC Class Codes: F16C 19/386 in O-arrangement
• CPC Class Codes: F16C 19/548 in O-arrangement
• CPC Class Codes: F16C 2326/02 Wheel hubs or castors in general B60B
• CPC Class Codes: F16C 35/073 between shaft and inner race ring
• CPC Class Codes: F16D 2065/1308 one-part
• CPC Class Codes: F16D 2065/1328 internal cavities, e.g. cooling channels
• CPC Class Codes: F16D 2065/1384 to wheel hub
• CPC Class Codes: F16D 2065/1392 Connection elements
• CPC Class Codes: F16D 65/12 Discs; Drums for disc brakes

Abstract

An improved vehicle wheel hub mounting system includes a wheel hub, an axle spindle, a bearing assembly, and a threaded fastener. The wheel hub defines an axis and including a generally axially extending body having a bore formed therethrough. The bore of the wheel hub includes an internal splined portion and an inner annular wheel hub surface spaced apart from the internal splined portion. The inner annular wheel hub surface defines a predetermined wheel hub inner diameter. The axle spindle is connected to the wheel hub for rotation therewith and includes a generally axially extending body having an external splined portion and an outer annular axle spindle surface spaced apart from the external splined portion. The external splined portion of the axle spindle matingly receives the internal splined portion of the wheel hub to connect the axle spindle to the wheel hub for rotation therewith. The outer annular axle spindle surface of the axle spindle defines a predetermined axle spindle outer diameter which receives the inner annular wheel hub surface of the wheel hub so as to support the wheel hub thereon. The bearing assembly is pressed onto a portion of one of the wheel hub and the axle spindle and is adapted to be secured to a non-rotatable component of the vehicle so as to rotatably support the wheel hub and the axle spindle relative thereto. The threaded fastener nut is secured to the axle spindle for preloading the bearing assembly and securing the wheel hub and the axle spindle together for rotation with one another.

Claims

1. A vehicle wheel hub mounting system comprising:

a wheel hub defining an axis and including a generally axially extending body having a radially outwardly extending flange defining a shoulder, said body having bore formed therethrough, said bore including an internal splined portion and an inner annular non-splined wheel hub surface spaced apart from said internal splined portion, said inner annular non-splined wheel hub surface defining a predetermined wheel hub inner diameter, said wheel hub including a bearing seat;

an axle spindle connected to said wheel hub for rotation therewith, said axle spindle including a generally axially extending body including an inboard end and an outboard end, said inboard end having a generally radially outwardly extending flange, said body having an external splined portion and an outer annular non-splined axle spindle surface spaced apart from said external splined portion, said external splined portion of said axle spindle matingly receiving said internal splined portion of said wheel hub to connect said axle spindle to said wheel hub for rotation therewith, said outer annular non-splined axle spindle surface of said axle spindle defining a predetermined axle spindle outer diameter for receiving said inner non-splined annular wheel hub surface of said wheel hub so as to support said wheel hub thereon;

a bearing assembly disposed on said bearing seat of said wheel hub radially adjacent only said inner annular non-splined wheel hub surface, said bearing assembly adapted to be secured to a non-rotatable component of the vehicle so as to rotatably support said wheel hub and said axle spindle relative thereto; and

retention means secured to said axle spindle for preloading said bearing assembly between said shoulder of said wheel hub and said flange of said inboard end of said axle spindle and for securing said wheel hub and said axle spindle together for rotation with one another.

2. The vehicle wheel hub mounting system defined in claim 1 wherein said bearing assembly is disposed entirely on said bearing seat of said wheel hub.

3. The vehicle wheel hub mounting system defined in claim 1 further including means for fixedly securing said retention means to said axle spindle to prevent relative movement therebetween.

4. The vehicle wheel hub mounting system defined in claim 1 wherein said retention means is a capscrew, said capscrew having threads which are adapted to be threadably received in threads provided on said outboard end of said axle spindle.

5. The vehicle wheel hub mounting system defined in claim 4 further including a retainer means secured to said wheel hub, said retainer means being disposed about said capscrew so as to prevent relative movement thereof.

6. The vehicle wheel hub mounting system defined in claim 1 wherein said retention means is a nut, said nut adapted to be threadably installed on a threaded portion of said outboard end of said axle spindle.

7. The vehicle wheel hub mounting system defined in claim 1 wherein said flange of said inboard end of said spindle includes an outer end provided with splines.

8. The vehicle wheel hub mounting system defined in claim 1 wherein said predetermined wheel hub inner diameter is slightly greater than said predetermined axle spindle outer diameter.

9. The vehicle wheel hub mounting system defined in claim 1 wherein said predetermined wheel hub inner diameter is slightly less than or generally equal to said predetermined axle spindle outer diameter.

10. The vehicle wheel hub mounting system defined in claim 1 wherein said internal splined portion of said wheel hub extends a first axial distance and said inner annular non-splined wheel hub surface extends a second axial distance which is greater than said first axial distance.

11. A vehicle wheel hub mounting system comprising:

a wheel hub defining an axis and including a generally axially extending body having a radially outwardly extending flange defining a shoulder, said body having bore formed therethrough, said bore including an internal splined portion and an inner annular non-splined wheel hub surface spaced apart from said internal splined portion, said inner annular non-splined wheel hub surface defining a predetermined wheel hub inner diameter, said wheel hub including a bearing seat;

an axle spindle connected to said wheel hub for rotation therewith, said axle spindle including a generally axially extending body including an inboard end and an outboard end, said inboard end having a generally radially outwardly extending flange provided with splined outer end, said body having an external splined portion and an outer annular non-splined axle spindle surface spaced apart from said external splined portion, said external splined portion of said axle spindle matingly receiving said internal splined portion of said wheel hub to connect said axle spindle to said wheel hub for rotation therewith, said outer annular non-splined axle spindle surface of said axle spindle defining a predetermined axle spindle outer diameter for receiving said inner annular non-splined wheel hub surface of said wheel hub so as to support said wheel hub thereon;

a bearing assembly disposed entirely on said bearing seat of said wheel hub radially adjacent only said inner annular non-splined wheel hub surface, said bearing assembly adapted to be secured to a non-rotatable component of the vehicle so as to rotatably support said wheel hub and said axle spindle relative thereto; and

retention means secured to said axle spindle for preloading said bearing assembly between said shoulder of said wheel hub and said flange of said inboard end of said axle spindle and for securing said wheel hub and said axle spindle together for rotation with one another.

12. The vehicle wheel hub mounting system defined in claim 11 further including means for fixedly securing said retention means to said axle spindle to prevent relative movement therebetween.

13. The vehicle wheel hub mounting system defined in claim 12 wherein said retention means is a capscrew, said capscrew having threads which are adapted to be threadably received in threads provided on said outboard end of said axle spindle.

14. The vehicle wheel hub mounting system defined in claim 13 further including a retainer means secured to said wheel hub, said retainer means being disposed about said capscrew so as to prevent relative movement thereof.

15. The vehicle wheel hub mounting system defined in claim 11 wherein said retention means is a nut, said nut adapted to be threadably installed on a threaded portion of said outboard end of said axle spindle.

16. The vehicle wheel hub mounting system defined in claim 11 wherein said predetermined wheel hub inner diameter is slightly greater than said predetermined axle spindle outer diameter.

17. The vehicle wheel hub mounting system defined in claim 11 wherein said predetermined wheel hub inner diameter is slightly less than or generally equal to said predetermined axle spindle outer diameter.

18. The vehicle wheel hub mounting system defined in claim 11 wherein said internal splined portion of said wheel hub extends a first axial distance and said inner annular non-splined wheel hub surface extends a second axial distance which is greater than said first axial distance.

19. A vehicle wheel hub mounting system comprising:

a wheel hub defining an axis and including a generally axially extending body having a radially outwardly extending flange defining a shoulder, said body having bore formed therethrough, said bore including an internal splined portion and an inner annular non-splined wheel hub surface spaced apart from said internal splined portion, said inner annular non-splined wheel hub surface defining a predetermined wheel hub inner diameter, said wheel hub including a bearing seat;

an axle spindle connected to said wheel hub for rotation therewith, said axle spindle including a generally axially extending body including an inboard end and an outboard end, said inboard end having a generally radially outwardly extending flange and said outboard end provided with a threaded end portion, said body having an external splined portion and an outer annular non-splined axle spindle surface spaced apart from said external splined portion, said external splined portion of said axle spindle matingly receiving said internal splined portion of said wheel hub to connect said axle spindle to said wheel hub for rotation therewith, said outer annular non-splined axle spindle surface of said axle spindle defining a predetermined axle spindle outer diameter for receiving said inner annular non-splined wheel hub surface of said wheel hub so as to support said wheel hub thereon;

a bearing assembly disposed entirely on said bearing seat of said wheel hub radially adjacent only said inner annular non-splined wheel hub surface, said bearing assembly adapted to be secured to a non-rotatable component of the vehicle so as to rotatably support said wheel hub and said axle spindle relative thereto; and

a nut disposed on said threaded end portion of said axle spindle for preloading said bearing assembly between said shoulder of said wheel hub and said flange of said inboard end of said axle spindle and for securing said wheel hub and said axle spindle together for rotation with one another.

20. The vehicle wheel hub mounting system defined in claim 19 wherein said flange of said inboard end of said spindle includes an outer end provided with to splines.

21. The vehicle wheel hub mounting system defined in claim 19 further including means for fixedly securing said nut on said axle spindle to prevent relative movement therebetween.

22. The vehicle wheel hub mounting system defined in claim 19 wherein said predetermined wheel hub inner diameter is slightly greater than said predetermined axle spindle outer diameter.

23. The vehicle wheel hub mounting system defined in claim 19 wherein said predetermined wheel hub inner diameter is slightly less than or generally equal to said predetermined axle spindle outer diameter.

24. The vehicle wheel hub mounting system defined in claim 19 wherein said internal splined portion of said wheel hub extends a first axial distance and said inner annular non-splined wheel hub surface extends a second axial distance which is greater than said first axial distance.