Method of producing wheel bearing apparatus

Patent metadata

Field	Value
Publication number	US-2016290406-A1
Application number	US-201615085511-A
Country	US
Kind code	A1
Filing date	Mar 30, 2016
Priority date	Apr 2, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A method of producing a wheel bearing apparatus includes: performing positioning of a slinger of a sealing device with respect to a base shaft portion of a hub spindle by pressing a jig to press-fit the slinger to the base shaft portion, using an inner ring contacted surface, which is a step portion between a small-diameter shaft portion and a large-diameter shaft portion of the hub spindle, as a reference surface; and fitting, after the slinger is press-fitted to the base shaft portion, an inner ring to the small-diameter shaft portion such that the inner ring reaches a position at which the inner ring comes into contact with the inner ring contacted surface, in a state where an outer ring, rolling elements, and the sealing device have been assembled to the hub spindle.

First claim

What is claimed is:

1 . A method of producing a wheel bearing apparatus, the wheel bearing apparatus including:
a hub spindle including a flange to which a wheel is attached, the flange being at an outboard-side end portion of the hub spindle in a vehicle-width direction, the hub spindle including a base shaft portion located at a root of the flange, a large-diameter shaft portion, and a small-diameter shaft portion, and the base shaft portion, the large-diameter shaft portion, and the small-diameter shaft portion being arranged in this order in a stepwise manner from the flange toward an inboard side in the vehicle-width direction; an inner ring fitted to the small-diameter shaft portion, the inner ring being brought into contact with an inner ring contacted surface that is a step portion between the small-diameter shaft portion and the large-diameter shaft portion; an outer ring disposed radially outward of the large-diameter shaft portion and the inner ring so as to be concentric with the large-diameter shaft portion and the inner ring; double-row rolling elements rollably disposed between the large-diameter shaft portion and the inner ring, and the outer ring; and a sealing device including a slinger, the sealing device being disposed between the base shaft portion and the outer ring, and the sealing device being assembled to the base shaft portion and the outer ring, the method comprising: performing positioning of the slinger with respect to the base shaft portion by pressing a jig to press-fit the slinger to the base shaft portion, using the inner ring contacted surface as a reference surface; and fitting, after the slinger is press-fitted to the base shaft portion, the inner ring to the small-diameter shaft portion such that the inner ring reaches a position at which the inner ring comes into contact with the inner ring contacted surface, in a state where the outer ring, the rolling elements, and the sealing device have been assembled to the hub spindle.

2 . The method according to claim 1 , wherein a grinding process is continuously performed on an outer peripheral surface of the hub spindle from the small-diameter shaft portion to the base shaft portion.

3 . The method according to claim 1 , wherein:
the double row rolling elements are rolling elements disposed in an inboard-side row in the vehicle-width direction and rolling elements disposed in an outboard-side row in the vehicle-width direction; and after the slinger is press-fitted to the base shaft portion, the inner ring, together with the rolling elements disposed in the inboard-side row, is fitted to the small-diameter shaft portion such that the inner ring reaches the position at which the inner ring comes into contact with the inner ring contacted surface, in a state where the outer ring, the rolling elements disposed in the outboard-side row, and the sealing device have been assembled to the hub spindle.

4 . The method according to claim 1 , wherein, after the inner ring is fitted to the small-diameter shaft portion, a distal end portion of the small-diameter shaft portion is clinched so as to hold the inner ring.

Assignees

• Jtekt Corp

Inventors

• Yano Hiroshi

Classifications

• F16C33/46 Primary

  Cages for rollers or needles · CPC title

• B60B2320/10

  Assembling; disassembling · CPC title

• F16C43/045 Primary

  Mounting or replacing seals · CPC title

• B60B27/0094

  one or more of the bearing races are formed by the hub · CPC title

• B23P15/003

  bearings (see also F16C33/00) · CPC title