JP2010043963A5

JP2010043963A5 -

Info

Publication number: JP2010043963A5
Application number: JP2008208400A
Authority: JP
Filing date: 2008-08-13
Publication date: 2012-10-18

Description

上記課題を達成するための本発明は、
筒状の外輪部材と、該外輪部材と同心に配置される内輪部材と、前記外輪部材と前記内輪部材との間に介装される転動体と、前記外輪部材と前記内輪部材との開口から前記転動体の転動面に異物が侵入しないようにその開口を密封する密封部材とを備え、前記外輪部材と前記内輪部材がそれらの軸線周りに相対回転可能にされ、その回転数を検出するためのセンサが取り付けられたセンサ付き転がり軸受装置であって、
前記密封部材は、前記内輪部材の外周面に装着されるリング状で、前記センサの被検出部となる磁気エンコーダが固着されるスリンガと、前記外輪部材の内周面に嵌合され、前記スリンガに接触配置されるシール部材とを備え、
前記スリンガと前記磁気エンコーダとは、それらの突合せ面に塗布された接着剤によって固着され、
前記スリンガと前記磁気エンコーダの突合せ面のいずれか一方又は双方には、前記接着剤がそれらの突合せ面から漏れないようにするための漏れ防止部が設けられ、
前記漏れ防止部は、前記スリンガ又は前記磁気エンコーダの外周縁から軸方向に突出する外側リング突条と、前記スリンガ又は前記磁気エンコーダの内周縁から軸方向に突出する内側リング突条とを有することを特徴としている。 The present invention for achieving the above-mentioned problems
A cylindrical outer ring member, an inner ring member arranged concentrically with the outer ring member, a rolling element interposed between the outer ring member and the inner ring member, and openings of the outer ring member and the inner ring member A sealing member that seals the opening so that foreign matter does not enter the rolling surface of the rolling element, and the outer ring member and the inner ring member are rotatable relative to each other about their axes, and the number of rotations is detected. A rolling bearing device with a sensor to which a sensor for mounting is attached,
The sealing member has a ring shape that is attached to the outer peripheral surface of the inner ring member, and is fitted with a slinger to which a magnetic encoder serving as a detected portion of the sensor is fixed, and an inner peripheral surface of the outer ring member, and the slinger And a seal member disposed in contact with
The slinger and the magnetic encoder are fixed by an adhesive applied to their butt surfaces,
Wherein the one or both of the slinger and abutting surface of the magnetic encoder, the leakage preventing portion for the adhesive agent is prevented from leaking from the abutting surface thereof is provided,
The leakage preventing portion includes an outer ring ridge protruding in the axial direction from an outer peripheral edge of the slinger or the magnetic encoder, and an inner ring ridge protruding in an axial direction from the inner peripheral edge of the slinger or the magnetic encoder. It is characterized by.

Claims

From a cylindrical outer ring member, an inner ring member arranged concentrically with the outer ring member, a rolling element interposed between the outer ring member and the inner ring member, and openings of the outer ring member and the inner ring member A sealing member that seals the opening so that foreign matter does not enter the rolling surface of the rolling element, and the outer ring member and the inner ring member are allowed to rotate relative to each other about their axes, and the number of rotations is detected. A rolling bearing device with a sensor to which a sensor for mounting is attached,
The sealing member has a ring shape that is attached to the outer peripheral surface of the inner ring member, and is fitted with a slinger to which a magnetic encoder serving as a detected portion of the sensor is fixed, and an inner peripheral surface of the outer ring member, and the slinger And a seal member disposed in contact with
The slinger and the magnetic encoder are fixed by an adhesive applied to their butt surfaces,
Wherein the one or both of the slinger and abutting surface of the magnetic encoder, the leakage preventing portion for the adhesive agent is prevented from leaking from the abutting surface thereof is provided,
The leakage preventing portion has an outer ring ridge protruding in the axial direction from an outer peripheral edge of the slinger or the magnetic encoder, and an inner ring ridge protruding in an axial direction from the inner peripheral edge of the slinger or the magnetic encoder. A rolling bearing device with a sensor characterized by

2. The sensor-equipped rolling bearing device according to claim 1, wherein the magnetic encoder is made of a resin material containing magnetic powder, and the adhesive is silicon-based.