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Rolling bearing unit with mounting plate, and method for manufacturing same

A technology for rolling bearings and mounting plates, which is applied to rolling contact bearings, bearing components, and bearings for rotational motion, etc., which can solve problems such as increased manufacturing costs, achieve improved yields, suppress component management costs and assembly costs, and achieve low costs Effect

Active Publication Date: 2017-04-05
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this structure, an increase in the manufacturing cost of the rolling bearing unit with the mounting plate is unavoidable as the number of parts increases

Method used

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  • Rolling bearing unit with mounting plate, and method for manufacturing same
  • Rolling bearing unit with mounting plate, and method for manufacturing same
  • Rolling bearing unit with mounting plate, and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0050] Figure 1 ~ Figure 4 Embodiment 1 of this invention is shown. The rolling bearing unit 8a with the mounting plate of this example is made by adding the radial rolling bearing 3a (refer to Figure 10 ) and the mounting plate 7a can be relatively rotated without being separated. The radial rolling bearing 3a has an outer ring 5a and an inner ring 6 (see Figure 10 ) and a plurality of balls 24 as rolling elements (refer to Figure 10 ). Among them, the inner ring 6 is integrally made of hard metal such as bearing steel into an annular shape, and a single-row deep-groove inner ring track is provided at the axial middle part of the outer peripheral surface, and is concentric with the outer ring 5a on the inner diameter side of the outer ring 5a. configuration. In addition, balls 24 as rolling elements are provided rotatably between the outer ring track 16 of the outer ring 5 a and the inner ring track of the inner ring 6 . Furthermore, the present invention is widely ...

Embodiment approach 2

[0063] Figure 5Embodiment 2 of this invention is shown. In the case of this example, the operation of forming the locking protrusion 11b on the peripheral portion of the large-diameter portion 21 in the holding hole 13a of the mounting plate 7a is divided into two steps.

[0064] That is, in the case of this example, first, as in Figure 5 As shown in (A), a wedge-shaped first punch 26 with a sharp front end is pressed against the peripheral edge of the large-diameter portion 21 on the other side surface in the axial direction of the mounting plate 7 a. Then, if Figure 5 As shown in (B), at the peripheral portion of the large-diameter portion 21, a V-shaped groove 27 is formed, and the radial width of the opening of the groove 27 on the other axial side of the mounting plate 7a And the width dimension becomes narrower toward the inside. At the same time, the radially inner portion of the groove 27 is plastically deformed radially inward to form the primary locking protru...

Embodiment approach 3

[0068] Figure 6 Embodiment 3 of this invention is shown. In the case of this example, in the axial middle portion (the portion excluding the axial end portion and the axial base portion of the small-diameter stepped portion 9b ) of the small-diameter stepped portion 9b provided on the outer ring 5b side, the locking groove 12b Set all over the perimeter. With this structure, the radial wall thickness of the axial base of the small-diameter stepped portion 9b is ensured, and the strength and rigidity of the portion where the small-diameter stepped portion 9b is formed on one axial end portion of the outer ring 5b is improved. Other parts are the same as Embodiment 1.

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PUM

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Abstract

When assembling an outer ring into a rolling bearing unit with a retainer plate, a retainer plate (7a) in which large-diameter sections (21) are provided at plural locations in the circumferential direction of a support hole (13a) is used, and with a small-diameter stepped section (9a) of the outer ring (5a) fitted inside this support hole (13a), a punch (23) presses parts of the circumferential edges of the large-diameter sections (21) of the side surface in the axial direction of the retainer plate (7a) toward a step surface that exists between the outer-circumferential surface of the outer ring (5a) and the base section in the axial direction of the small-diameter stepped section (9a) and plastically deforms the parts of the circumferential edges of the large-diameter sections inward in the radial direction to form engagement protrusions, while at the same time, the engagement protrusions are engaged with an engagement groove (12a) that is formed around the outer-circumferential surface of the small-diameter stepped section (9a).

Description

[0001] The patent application of this invention is the national application number 201380034622.X, the international application number is PCT / JP2013 / 067737, the application date is June 27, 2013, and the invention name is "Rolling bearing unit with mounting plate and its manufacturing method" A divisional application of an invention patent application. technical field [0002] The present invention relates to a rolling bearing unit with a mounting plate used to rotatably support an end portion of a rotating shaft constituting an automobile transmission or the like on an inner surface of a housing, and to a manufacturing method thereof. Background technique [0003] Such as Figure 11 As shown, the end portion of a rotating shaft 1 such as an intermediate shaft constituting an automotive transmission is freely rotatably supported by a housing 2 that accommodates components of an automotive transmission via a radial rolling bearing 3 such as a single row deep groove ball beari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/06F16C33/58F16C35/06F16C19/54
CPCF16C19/06F16C19/54F16C33/583F16C35/06F16C33/58F16C33/586F16C35/045F16C35/067F16C2220/40F16C2226/60F16C2361/61
Inventor 杉万朋治
Owner NSK LTD