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Rolling bearing

A technology of rolling bearings and rolling elements, applied in the field of rolling bearings, can solve the problems of damage to sealing, small diameter of the inner wheel 102, deviation of the inner diameter of the inner wheel 102, etc., and achieve the effect of suppressing deformation

Active Publication Date: 2010-11-24
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the inner ring 102 is deformed and its inner diameter shrinks. As a result, there is a problem that the inner diameter of the inner ring 102 is smaller than the standard diameter, and the inner diameter of the inner ring 102 deviates from the standard.
[0007] In addition, when the axially outer portion of the sleeve 111 (that is, the portion adjacent to the sealing flange 112 ) is press-fitted to the outer circumference of the inner ring 102 , the sealing flange 112 may be deformed and inclined axially outward, causing damage. sealing problem

Method used

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Embodiment Construction

[0058] Hereinafter, the present invention will be described in detail using illustrations.

[0059] figure 1 It is a cross-sectional view of an embodiment of the rolling bearing of the present invention. in addition, figure 2 It is an enlarged cross-sectional view of a main part of the rolling bearing of this embodiment. in addition, Figure 3A is a cross-sectional view of the oil flinger 41 as a sealing member included in the rolling bearing of the above embodiment, Figure 3B It is a sectional view of the flinger 71 of a modification.

[0060]The rolling bearing of this embodiment includes: an outer ring 1 having two rows of raceway surfaces 2, 3 on inner peripheral surfaces 1A, 1B; The surface 20A has the inner wheel 20 of the track surface 21 opposite the track surface 3 of the outer wheel 1 . The inner wheels 10, 20 form a first track part, and the outer wheel 1 forms a second track part. In addition, the outer peripheral surfaces 10A, 20A of the inner rings 10, ...

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Abstract

A rolling bearing has a metallic sealing member (41) at one axial end thereof. The sealing member (41) has a first cylinder section (42) including a first cylinder section facing surface (42A) which is in contact with an outer peripheral surface of an inner ring, a second cylinder section (43) connected to the first cylinder section (42) and including a second cylinder section facing surface (43A) which faces the outer peripheral surface of the inner ring, and a flange section (45) connected to the second cylinder section (43) via a bend section (44). In a state before the sealing member (41) is press fitted in the bearing, a radial position of the second cylinder section facing surface (43A) is closer to the flange section (45) than a radial.position of the first cylinder section facing surface (42A). The rolling bearing has another metallic sealing member at another axial end thereof.

Description

technical field [0001] The invention relates to a rolling bearing with a sealing element. Background technique [0002] A conventional sealing device for a rolling bearing is disclosed in Japanese Unexamined Patent Application Publication No. 2006-118625 (Patent Document 1). [0003] Figure 4 The reference numeral 100 in is a rolling support for supporting the wheel so that the wheel can rotate freely, and it is composed of an outer wheel 101, an inner wheel 102, and a plurality of steel balls 103 disposed therebetween and arranged on the circumference. [0004] The sealing device of the rolling bearing prevents muddy water, dust, etc. from the outside from intruding into the rolling bearing 100, and prevents the grease lubricating the steel ball 103 from flowing out of the bearing. The sealing device includes: a sleeve 111 embedded in the outer peripheral surface of the inner ring 102; The mounting ring 120 on the inner peripheral surface. In addition, the sealing devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/76F16C33/78
CPCF16J15/3264F16C33/7859F16C19/28F16J15/3456F16C33/768F16C33/783
Inventor 增井孝志久保润一砂川雅英
Owner JTEKT CORP