A sealing device includes a stationary side installation ring fixed to a stationary side member, a rotation side installation ring fixed to a rotation side member, a stationary side lip integrally provided on the stationary side installation ring and slidably contacting the rotation side installatio
A sealing device includes a stationary side installation ring fixed to a stationary side member, a rotation side installation ring fixed to a rotation side member, a stationary side lip integrally provided on the stationary side installation ring and slidably contacting the rotation side installation ring, rotation side lips integrally formed on the rotation side installation ring and slidably contacting the stationary side installation ring, and a pulsar ring for a rotary encoder integrally formed on the rotation side installation ring, and magnetized to be multipolar. The rotation side installation ring includes first and second rotation side installation rings which are attached to each other. The rotation side lips are provided on the first rotation side installation ring at a relatively inner side. The pulsar ring is provided on the second rotation side installation ring at a relatively outer side.
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1. A sealing device comprising: a stationary side installation ring tightly fitted and fixed to a stationary side member;a rotation side installation ring tightly fitted and fixed to a rotation side member;a stationary side lip integrally provided on the stationary side installation ring and slidabl
1. A sealing device comprising: a stationary side installation ring tightly fitted and fixed to a stationary side member;a rotation side installation ring tightly fitted and fixed to a rotation side member;a stationary side lip integrally provided on the stationary side installation ring and slidably brought into close contact with the rotation side installation ring by its tip end portion;rotation side lips integrally formed on the rotation side installation ring and slidably brought into close contact with the stationary side installation ring by their tip end portions; anda pulsar ring for a rotary encoder made of a synthetic resin or rubber-like elastic material, mixed with magnetic powder, integrally formed on the rotation side installation ring, and magnetized to be multipolar,wherein the rotation side installation ring is constituted by first and second rotation side installation rings which are fitted and attached to each other, the rotation side lips are provided on the first rotation side installation ring arranged at a relatively inner side, and the pulsar ring is provided on the second rotation side installation ring arranged at a relatively outer side,the pulsar ring is provided on an outer surface of the second rotation side installation ring,the first rotation side installation ring is constituted by a first inner peripheral tube portion in which an outer peripheral surface is slidably brought into close contact with an inner periphery of the stationary side lip, and a first flange extending outwardly from one end portion of the first inner peripheral tube portion,the second rotation side installation ring is constituted by a second inner peripheral tube portion in which an outer peripheral surface is fitted and attached integrally to the first inner peripheral tube portion of the first rotation side installation ring, and a second flange extending outwardly from one end portion of the second inner peripheral tube portion and superposed with the first flange, of the first rotation side installation ring in an axial direction,the pulsar ring is bonded by vulcanization to an outer surface of the second flange of the second rotation side installation ring, andthe rotation side installation ring is pressure-inserted and fitted to an outer peripheral surface of the rotation side member by the second inner peripheral tube portion of the second rotation side installation ring. 2. A sealing device comprising: a stationary side installation ring tightly fitted and fixed to a stationary side member;a rotation side installation ring tightly fitted and fixed to a rotation side member;a stationary side lip integrally provided on the stationary side installation ring and slidably brought into close contact with the rotation side installation ring by its tip end portion;rotation side lips integrally formed on the rotation side installation ring and slidably brought into close contact with the stationary side installation ring by their tip end portions; anda pulsar ring for a rotary encoder made of a synthetic resin or rubber-like elastic material, mixed with magnetic powder, integrally formed on the rotation side installation ring, and magnetized to be multipolar,wherein the rotation side installation ring is constituted by first and second rotation side installation rings which are fitted and attached to each other, the rotation side lips are provided on the first rotation side installation ring arranged at a relatively inner side, and the pulsar ring is provided on the second rotation side installation ring arranged at a relatively outer side,the pulsar ring is provided on an outer surface of the second rotation side installation ring, anda collar portion is provided in an extending manner on an outer peripheral portion of the pulsar ring so as to be close to and opposed to the stationary side member at an outer position than the rotation side lips. 3. A sealing device comprising: a stationary side installation ring tightly fitted and fixed to a stationary side member;a rotation side installation ring tightly fitted and fixed to a rotation side member;a stationary side lip integrally provided on the stationary side installation ring and slidably brought into close contact with the rotation side installation ring by its tip end portion;rotation side lips integrally formed on the rotation side installation ring and slidably brought into close contact with the stationary side installation ring by their tip end portions; anda pulsar ring for a rotary encoder made of a synthetic resin or rubber-like elastic material, mixed with magnetic powder, integrally formed on the rotation side installation ring, and magnetized to be multipolar,wherein the rotation side installation ring is constituted by first and second rotation side installation rings which are fitted and attached to each other, the rotation side lips are provided on the first rotation side installation ring arranged at a relatively inner side, and the pulsar ring is provided on the second rotation side installation ring arranged at a relatively outer side,the second rotation side installation ring is constituted by a non-magnetic body, and the pulsar ring is provided on an inner surface of the second rotation side installation ring, anda collar portion is provided in an extending manner on an outer peripheral portion of the pulsar ring so as to be close to and opposed to the stationary side member at an outer position than the rotation side lips. 4. A sealing device comprising: a stationary side installation ring tightly fitted and fixed to a stationary side member;a rotation side installation ring tightly fitted and fixed to a rotation side member;a stationary side lip integrally provided on the stationary side installation ring and slidably brought into close contact with the rotation side installation ring by its tip end portion;rotation side lips integrally formed on the rotation side installation ring and slidably brought into close contact with the stationary side installation ring by their tip end portions; anda pulsar ring for a rotary encoder made of a synthetic resin or rubber-like elastic material, mixed with magnetic powder, integrally formed on the rotation side installation ring, and magnetized to be multipolar,wherein the rotation side installation ring is constituted by first and second rotation side installation rings which are fitted and attached to each other, the rotation side lips are provided on the first rotation side installation ring arranged at a relatively inner side, and the pulsar ring is provided on the second rotation side installation ring arranged at a relatively outer side,the pulsar ring is provided on an outer surface of the second rotation side installation ring,the first rotation side installation ring is constituted by a first inner peripheral tube portion in which an outer peripheral surface is slidably brought into close contact with an inner periphery of the stationary side lip, and a first flange extending outwardly from one end portion of the first inner peripheral tube portion,the second rotation side installation ring is constituted by a second inner peripheral tube portion in which an outer peripheral surface is fitted and attached integrally to the first inner peripheral tube portion of the first rotation side installation ring, and a second flange extending outwardly from one end portion of the second inner peripheral tube portion and superposed with the first flange of the first rotation side installation ring in an axial direction,the pulsar ring is bonded by vulcanization to an outer surface of the second flange of the second rotation side installation ring,the rotation side installation ring is pressure-inserted and fitted to an outer peripheral surface of the rotation side member by the second inner peripheral tube portion of the second rotation side installation ring, anda collar portion is provided in an extending manner on an outer peripheral portion of the pulsar ring so as to be close to and opposed to the stationary side member at an outer position than the rotation side lips. 5. A sealing device comprising: a stationary side installation ring tightly fitted and fixed to a stationary side member;a rotation side installation ring tightly fitted and fixed to a rotation side member;a stationary side lip integrally provided on the stationary side installation ring and slidably brought into close contact with the rotation side installation ring by its tip end portion;rotation side lips integrally formed on the rotation side installation ring and slidably brought into close contact with the stationary side installation ring by their tip end portions; anda pulsar ring for a rotary encoder made of a synthetic resin or rubber-like elastic material, mixed with magnetic powder, integrally formed on the rotation side installation ring, and magnetized to be multipolar,wherein the rotation side installation ring is constituted by first and second rotation side installation rings which are fitted and attached to each other, the rotation side lips are provided on the first rotation side installation ring arranged at a relatively inner side, and the pulsar ring is provided on the second rotation side installation ring arranged at a relatively outer side,the second rotation side installation ring is constituted by a non-magnetic body, and the pulsar ring is provided on an inner surface of the second rotation side installation ring,the first rotation side installation ring is constituted by a first inner peripheral tube portion in which an outer peripheral surface is slidably brought into close contact with an inner periphery of the stationary side lip, and a first flange extending outwardly from one end portion of the first inner peripheral tube portion,the second rotation side installation ring is constituted by a second inner peripheral tube portion in which an outer peripheral surface is fitted and attached integrally to the first inner peripheral tube portion of the first rotation side installation ring, and a second flange extending outwardly from one end portion of the second inner peripheral tube portion and superposed with the first flange of the first rotation side installation ring in an axial direction,the pulsar ring is bonded by vulcanization to an outer surface of the second flange of the second rotation side installation ring,the rotation side installation ring is pressure-inserted and fitted to an outer peripheral surface of the rotation side member by the second inner peripheral tube portion of the second rotation side installation ring, anda collar portion is provided in an extending manner on an outer peripheral portion of the pulsar ring so as to be close to and opposed to the stationary side member at an outer position than the rotation side lips.
Rigaux Christian (Artannes-sur-Indre FRX) Maestrati Jean-Franois (Joue-les-Tours FRX), Encoder device for a rotational speed sensor and rolling-contact bearing equipped with such a device.
Toda, Kazutoshi; Sentoku, Minoru; Arai, Hirokazu; Kasahara, Fumiaki; Tamura, Tomomitsu, Seal ring, sealing device and rolling bearing including the same.
Sentoku, Minoru; Kawamura, Motoshi; Toda, Kazutoshi; Seo, Nobuyuki; Morimura, Naoki; Ishii, Tomohiro; Kouda, Kanichi; Shige, Yoshifumi; Harumi, Fujio, Sealed wheel speed detector with rotating magnetic ring and stationary magnetic sensor.
Sentoku,Minoru; Kawamura,Motoshi; Toda,Kazutoshi; Seo,Nobuyuki; Morimura,Naoki; Ishii,Tomohiro; Kouda,Kanichi; Shige,Yoshifumi; Harumi,Fujio, Wheel speed detector having stationary seal member for mounting magnetic sensor.
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