JPH0348768U

JPH0348768U -

Info

Publication number: JPH0348768U
Application number: JP10964589U
Authority: JP
Priority date: 1989-09-21
Filing date: 1989-09-21
Publication date: 1991-05-10

Description

[Brief explanation of the drawing]

第１〜４図は本考案の実施例を示しており、第
１図は全体構成を示す断面図、第２図は第１図の
Ａ矢視図、第３図は第２図の拡大Ｂ−Ｂ断面図、
第４図は同Ｃ−Ｃ断面図、第５図は従来の回転速
度検出用転がり軸受の１例を示す断面図である。１……外輪、２……内方軌道、３……内輪、４
……外方軌道、５……保持器、６……転動体、７
……カバー、８……センサロータ、９……回転速
度検出センサ、１０……通孔、１１……ハブ、１
２……フランジ、１３……第一の外方軌道、１４
……段部、１５……第二の外方軌道、１６……内
輪、１７……外輪、１８……フランジ、１９……
第一の内方軌道、２０……第二の内方軌道、２１
……第一のシールリング、２２……空間、２３…
…雄螺子部、２４……止めナツト、２５……セン
サロータ、２６……カバー、２７……第二のシー
ルリング、２８……側壁、２９……透孔、３０…
…回転速度検出センサ、３１……ケーシング、３
２……小孔、３３……フランジ部、３４……鍔部
、３５……突部、３６……鍔部、３７……永久磁
石、３８……誘導コイル、３９……導線。 Figures 1 to 4 show an embodiment of the present invention, where Figure 1 is a sectional view showing the overall configuration, Figure 2 is a view taken in the direction of arrow A in Figure 1, and Figure 3 is an enlarged view of Figure 2 at B. -B sectional view,
FIG. 4 is a sectional view taken along the line CC, and FIG. 5 is a sectional view showing an example of a conventional rolling bearing for detecting rotational speed. 1... Outer ring, 2... Inner raceway, 3... Inner ring, 4
...Outer raceway, 5...Cage, 6...Rolling element, 7
... Cover, 8 ... Sensor rotor, 9 ... Rotation speed detection sensor, 10 ... Through hole, 11 ... Hub, 1
2...Flange, 13...First outer raceway, 14
... Stepped portion, 15 ... Second outer raceway, 16 ... Inner ring, 17 ... Outer ring, 18 ... Flange, 19 ...
First inner orbit, 20...Second inner orbit, 21
...First seal ring, 22...Space, 23...
... Male thread, 24 ... Locking nut, 25 ... Sensor rotor, 26 ... Cover, 27 ... Second seal ring, 28 ... Side wall, 29 ... Through hole, 30 ...
...Rotation speed detection sensor, 31...Casing, 3
2... Small hole, 33... Flange portion, 34... Flange portion, 35... Projection, 36... Flange portion, 37... Permanent magnet, 38... Induction coil, 39... Conductor wire.

Claims

[Scope of Claim for Utility Model Registration] (1) A member equivalent to an inner ring having an outer raceway formed on its outer peripheral surface, a member equivalent to an outer ring having an inner raceway formed on its inner peripheral surface, and a member equivalent to the inner ring and an outer ring equivalent member having an inner raceway formed on its inner peripheral surface. a plurality of rolling elements provided between; a sensor rotor fixed to the circumferential surface of a rotating member of the inner ring equivalent member and the outer ring equivalent member; and fixation of the inner ring equivalent member and the outer ring equivalent member. In a rotational speed detection rolling bearing comprising a rotational speed detection sensor supported in a state facing the sensor rotor, the rotational speed detection sensor is housed in a synthetic resin casing, and the rotational speed detection sensor is housed in a synthetic resin casing, and the rotational speed detection sensor is A cover is provided, one end of which is supported and fixed to the member, and which closes an opening at one end of the space existing between the outer circumferential surface of the inner ring equivalent member and the inner circumferential surface of the outer ring equivalent member, and a part of this cover is used to A rolling bearing for rotational speed detection, characterized in that the cover and casing are integrally connected by insert molding the synthetic resin casing inside a through hole formed in a portion facing the sensor rotor. . (2) The rolling bearing for rotational speed detection according to claim 1, wherein small holes are formed on both sides of the through hole, and the portion fixed to the casing extends into the small holes.