Retaining assembly for an axle hub and bearing assembly

• US 6,224,167 B1
• Filed: 07/22/1999
• Issued: 05/01/2001
• Est. Priority Date: 07/22/1999
• Status: Expired due to Term

• Current Assignee: Meritor Heavy Vehicle Systems, LLC (Meritor, Inc. (Nevada))
• Original Assignee: Meritor Heavy Vehicle Systems, LLC (Meritor, Inc. (Nevada))
• Inventors: Riley, Andrew John
• Primary Examiner(s): Morano, S. Joseph
• Assistant Examiner(s): NGUYEN, LONG B
• Application Number:
  US09/359,236
• Time in Patent Office: 649 Days
• Field of Search: 301/105.1, 301/126, 301/131, 301/35.63, 301/124.1, 411/116, 411/117, 411/120, 411/121, 411/122, 411/123, 411/124
• US Class Current: 301/126
• CPC Class Codes: B60B 27/02 adapted to be rotatably arranged on axle
• CPC Class Codes: F16C 19/386 in O-arrangement
• CPC Class Codes: F16C 2326/02 Wheel hubs or castors in general B60B
• CPC Class Codes: F16C 25/06 Ball or roller bearings
• CPC Class Codes: F16C 35/063 Fixing them on the shaft with interposition of an element F16C35/07
• CPC Class Codes: F16C 35/067 Fixing them in a housing with interposition of an element F16C35/07

Abstract

An axle assembly for supporting wheels is provided that has a spindle defining an axis of rotation with a threaded end portion. A hub assembly is supported by the spindle and is adapted to support the wheels. A bearing assembly is arranged adjacent to the threaded end portion and is interposed between the spindle and the hub assembly for permitting low friction rotation of the hub assembly relative to the spindle about the axis. An end nut is secured to the threaded end portion of the spindle for retaining the bearing assembly and the hub assembly on the spindle. A washer is interposed between said bearing assembly and the end nut wherein the washer secures the end nut to the spindle for preventing rotation of the end nut about the axis.

Claims

1. An axle assembly for supporting wheels comprising:

a spindle defining an axis of rotation and having a threaded end portion;

a hub assembly supported by said spindle and adapted to support the wheels;

a bearing assembly adjacent to said threaded end portion and interposed between said spindle and said hub assembly for permitting low friction rotation of said hub assembly relative to said spindle about said axis;

an end nut secured to said threaded end portion of said spindle for retaining said bearing assembly and said hub assembly on said spindle; and

a washer assembly interposed between said bearing assembly and said end nut wherein said washer assembly comprising locating and staking washers secured to one another cooperating to secure said end nut to said spindle for preventing rotation of said end nut about said axis.

2. The assembly as set forth in claim 1 wherein said locating washer engages said spindle and said staking washer engages said end nut for preventing rotation of said washer assembly and said end nut about said axis.

3. The assembly as set forth in claim 2 wherein said spindle includes a groove generally parallel with said axis, and said locating washer includes a first inner diameter with a tab extending radially inwardly therefrom which engages said groove.

16. The assembly as set forth in claim 1 wherein a first inner diameter of said locating washer includes at least one notch, and said staking washer includes a second inner diameter with at least one prong extending transversely therefrom for engaging said at least one notch and securing said locating and staking washers together.

4. An axle assembly for supporting wheels comprising:

a spindle defining an axis of rotation and having a threaded end portion, said spindle including a groove generally parallel with said axis;

a hub assembly supported by said spindle and adapted to support the wheels;

a bearing assembly adjacent to said threaded end portion and interposed between said spindle and said hub assembly for permitting low friction rotation of said hub assembly relative to said spindle about said axis;

an end nut secured to said threaded end portion of said spindle for retaining said bearing assembly and said hub assembly on said spindle; and

a washer interposed between said bearing assembly and said end nut wherein said washer secures said end nut to said spindle for preventing rotation of said end nut about said axis, said washer comprising a washer assembly including a locating washer and a staking washer secured to one another, said locating washer engaging said spindle and said staking washer engaging said end nut for preventing rotation of said washer assembly and said end nut about said axis, and said locating washer includes a first inner diameter with a tab extending radially inwardly therefrom which engages said groove, wherein said first inner diameter of said locating washer includes at least one notch, and said staking washer includes a second inner diameter with at least one prong extending transversely therefrom for engaging said at least one notch and securing said locating and staking washers together.

5. The assembly as set forth in claim 4 wherein said end nut includes an outer perimeter, and wherein said staking washer includes an outer diameter with an arcuate flange extending transversely therefrom adjacent to said outer perimeter, a portion of said flange engaging said end nut.

6. The assembly as set forth in claim 5 wherein said end nut has at least one recess, said flange deformed into engagement with said at least one recess.

7. The assembly as set forth in claim 6 wherein said at lease one recess comprises three recess, said flange deformed into engagement with one of said three recesses.

8. A method for retaining a hub assembly and bearing assembly on a spindle of an axle assembly comprising the steps of:

(a) installing a hub assembly and bearing assembly onto a spindle having an axis;

(b) installing a washer onto the spindle adjacent to the bearing assembly, wherein the washer is rotationally fixed to the spindle relative to the axis;

(c) fastening an end nut onto the spindle adjacent to the washer; and

(d) plastically deforming the washer into engagement with the end nut for rotationally fixing the end nut relative to the spindle.

9. The method as set forth in claim 8 wherein said washer comprises a washer assembly including a locating washer and a staking washer secured to one another, wherein said locating washer engages said spindle and said staking washer engages said end nut for preventing rotation of said washer assembly and said end nut about said axis.

10. The method as set forth in claim 9 wherein said spindle includes a groove generally parallel with said axis, and said locating washer includes a first inner diameter with a tab extending radially inwardly therefrom which engages said groove.

11. A method for retaining a hub assembly and bearing assembly on a spindle of an axle assembly comprising the steps of:

(a) installing a hub assembly and bearing assembly onto a spindle having an axis and a groove generally parallel with the axis;

(b) installing a washer assembly which includes a locating washer and a staking washer onto the spindle adjacent to the hearing assembly, wherein the washer assembly is rotationally fixed to the spindle relative to the axis by a tab extending radially inwardly from a first inner diameter of the locating washer which engages the groove, wherein the first inner diameter of the locating washer includes at least one notch, and the staking washer includes a second inner diameter with at least one prong extending transversely therefrom for engaging the at least one notch and securing the locating and staking washers together;

(c) fastening an end nut onto the spindle adjacent to the washer; and

(d) deforming the staking washer into engagement with the end nut for rotationally fixing the end nut relative to the spindle.

12. The method as set forth in claim 11 wherein said end nut includes an outer perimeter, and wherein said staking washer includes an outer diameter with an arcuate flange extending transversely therefrom adjacent to said outer perimeter, a portion of said flange engaging said end nut.

13. The method as set forth in claim 12 wherein said end nut has at least one recess, said flange deformed into engagement with said at least one recess.

14. The method as set forth in claim 13 wherein said portion of said flange is sheared when said flange is deformed into engagement with said at least one recess.

15. The method as set forth in claim 14 wherein said at lease one recess comprises three recess, said flange deformed into engagement with one of said three recesses.