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Hub unit, rolling bearing assembly and manufacture method thereof, as well as assembling apparatus for rolling bearing assebly and assebly method thereof

A technology of rolling bearing and hub unit, applied in the direction of rolling contact bearing, shaft and bearing, bearing of rotary motion, etc., can solve the problem of cracks in annular components, and achieve the effect of high suppression effect

Active Publication Date: 2007-09-05
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the amount of expansion is too large, there is a problem that cracks occur in ring members, etc.

Method used

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  • Hub unit, rolling bearing assembly and manufacture method thereof, as well as assembling apparatus for rolling bearing assebly and assebly method thereof
  • Hub unit, rolling bearing assembly and manufacture method thereof, as well as assembling apparatus for rolling bearing assebly and assebly method thereof
  • Hub unit, rolling bearing assembly and manufacture method thereof, as well as assembling apparatus for rolling bearing assebly and assebly method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0048] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a cross-sectional view showing a first embodiment of the hub unit of the present invention. The hub unit H1 according to this embodiment is, for example, a hub unit used in a free hub mechanism of a time-sharing four-wheel drive automobile. The structure of the free hub mechanism includes: a hub shaft 2 coaxially mounted on the axle 1 of the drive system; a double-row tapered roller bearing 3 as a rolling bearing embedded in the axial center of the hub shaft 2; and a double-row tapered roller bearing 3 A connecting ring (ring member) 4 in which the row of tapered roller bearings 3 are arranged side by side in the axial direction. In addition, the hub unit H1 is coaxially supported on the axle 1 (to be rotatable in the circumferential direction with respect to the axle 1 through the deep groove ball bearing 5 and the needle roller bearing 6 arranged between...

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PUM

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Abstract

A rolling bearing adapted to prevent crack formation in a caulking portion is provided. A rolling bearing assembly includes: a hub shaft having the caulking portion at an axial end thereof, the caulking portion bendably deformed in a radially outward direction; the rolling bearing mounted on an outside surface of the hub shaft; and an annular member spline-engaged with the hub shaft and caulk-fixed to place by the caulking portion. An inner-side axial end of a second male spline formed on the hub shaft is shifted from an inner-side end of the hub shaft toward an outer side far enough to ensure that the second male spline is not susceptible to the plastic deformation of the caulked caulking portion.

Description

Technical field [0001] The present invention relates to, for example, a hub unit used in a free hub mechanism of an automobile, a rolling bearing device used in a hub unit of an automobile, etc., and a manufacturing method thereof, and the end of an inner shaft is crimped to form a ring shape An assembling device of a rolling bearing device for assembling components and an assembling method thereof. Background technique [0002] As a four-wheel drive vehicle, a full-time four-wheel drive vehicle and a time-sharing four-wheel drive vehicle are known. Among them, a time-sharing four-wheel drive vehicle is a vehicle that can switch between the two-wheel drive state and the four-wheel drive state. For this four-wheel drive vehicle, for example, by disconnecting the driven side wheel from the axle of the drive system, the driven side wheel can be in a free state, and no rotation is transmitted between the wheel and the axle. In addition, it has a mechanism (free hub mechanism) that co...

Claims

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Application Information

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IPC IPC(8): B60B35/18F16D1/06B21D39/00B21D53/10F16C19/18F16C43/04F16C25/06
Inventor 柏木信一郎高崎真之介中川有一上川刚出口胜井上昌弘
Owner JTEKT CORP
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