Method of manufacturing rolling bearing device for wheel

• US 20070227004A1
• Filed: 03/30/2007
• Published: 10/04/2007
• Est. Priority Date: 03/31/2006
• Status: Active Grant

• Current Assignee: Jtekt Corporation (Toyota Motor Corporation)
• Original Assignee: Jtekt Corporation (Toyota Motor Corporation)
• Inventors: Harada, Katsuyuki, Tsuzaki, Youichi
• Granted Patent: US 7,900,358 B2
• Time in Patent Office: Days
• US Class Current: 29/898
• CPC Class Codes: B60B 27/00 Hubs non-metallic B60B5/00; of high resiliency B60B9/00
• CPC Class Codes: B60B 27/0005 with ball bearings
• CPC Class Codes: B60B 27/0026 of the radial type, e.g. splined key
• CPC Class Codes: B60B 27/0042 characterised by the fixation of the homokinetic joint to the hub
• CPC Class Codes: B60B 27/0094 one or more of the bearing races are formed by the hub
• CPC Class Codes: F16C 19/186 with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
• CPC Class Codes: F16C 2326/02 Wheel hubs or castors in general B60B
• CPC Class Codes: F16C 35/0635 the bore of the inner ring being of special non-cylindrical shape which co-operates with a complementary shape on the shaft, e.g. teeth, polygonal sections
• CPC Class Codes: F16C 43/04 Assembling rolling-contact bearings
• CPC Class Codes: Y10T 29/49636 Process for making bearing or component thereof
• CPC Class Codes: Y10T 29/49643 Rotary bearing
• CPC Class Codes: Y10T 29/49696 Mounting
• CPC Class Codes: Y10T 29/49908 Joining by deforming
• CPC Class Codes: Y10T 29/49911 by expanding inner annulus

Abstract

A method of manufacturing a double row rolling bearing device includes: providing a collet chuck having radially expandable separated parts and a tapered cone for radially expanding the separated parts; inserting the radially contracted collet chuck into a through hole before the double row rolling bearing is caulked to the hub shaft; caulking the cylindrical end of the hub shaft, with the separated parts being in contact with the end by radially expanding the collet chuck to prevent radially inward plastic deformation of the end; and contracting the collet chuck and extracting the collet chuck out of the hub shaft after the caulking.

Claims

1. A method of manufacturing a rolling bearing device for a wheel in which a rolling bearing is disposed around an outer circumference of a hub shaft which includes a through hole axially formed therethrough and an engaging portion, formed around an inner circumference of the through hole, to be engaged with an outer ring of a joint member, and a cylindrical end of the hub shaft is caulked to a rolling bearing by bending the end radially outward, the method comprising:

preparing a collet chuck that includes a cylindrical portion and a plurality of separated portions formed by separating the cylindrical portion in an axial direction, the plurality of separated portions being radially expandable and shrinkable, and a diameter-changing portion for the collet chuck that radially expands and contracts the collet chuck;

inserting the collet chuck into the through hole of the hub shaft in a state that the collet chuck is radially contracted;

radially expanding the collet chuck so as to make the separated parts contact with the end;

caulking the end of the hub shaft in the state that the separated parts are in contact with the end to prevent radially inward plastic deformation of the end; and

radially contracting the collet chuck and extracting the collet chuck out of the hub shaft after the caulking.

2. The method according to claim 1, wherein

the separated parts are urged so as to approach each other, and a cavity in the cylindrical portion has a tapered surface that is tapered toward a free end thereof, and

the diameter-changing portion includes a tapered member that has a tapered portion corresponding to the tapered surface, radially expands the separated parts by pushing the tapered surface with the tapered portion, and radially contracts the separated parts by retreating the tapered portion.

3. The method according to claim 1, wherein the outer circumference of the collet chuck has an engaging shape to be engaged with the engaging portion.

4. The method according to claim 1, wherein the outer circumference of the collet chuck is positioned in parallel with the inner circumference of the hub shaft when the collet chuck is radially expanded.

5. The method according to claim 3, wherein the outer circumference of the collet chuck is positioned in parallel with the inner circumference of the hub shaft when the collet chuck is radially expanded.