摘要:
A wheel bearing apparatus incorporating a wheel speed detecting apparatus has a wheel bearing with an outer member and an inner member. A sensor holder is injection molded from synthetic resin and is embedded with a wheel speed detecting sensor. The sensor holder is mounted on an inner side end of the outer member. The inner side seal of the seals includes an annular sealing plate, a slinger and a pulser ring. An anchoring portion is formed integrally with the metal core. The sensor holder is being integrally molded with the metal core from synthetic resin that surrounds the anchoring portion
摘要:
A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member, inner member and double row rolling elements rollably contained between the inner and outer raceway surfaces of the inner and outer members. Seals are mounted in annular openings formed between the outer member and the inner member. An annular sensor holder, a steel base, and a magnetic encoder integrally adhered to the base are coupled with the inner and outer members. A slinger is positioned on the inner ring so that an axial gap is formed between the base and the slinger.
摘要:
A sensor holder has an encoder and a wheel speed sensor arranged opposite to the encoder, via a predetermined air gap. An annular fitting member is formed by pressing an anti-corrosive steel plate. A holding portion is formed of injection moldable synthetic resin and is integrally formed with the annular fitting member. The wheel speed sensor is embedded in the holding portion. At least a surface of the annular fitting member contacting the holding portion is roughened by shot blasting to have a surface roughness Ra of 0.8 or more.
摘要:
A wheel speed detecting apparatus incorporated with a wheel bearing apparatus. The wheel speed detecting apparatus has an encoder, and an annular sensor holder arranged opposite to the encoder. The sensor holder has an annular fitting member formed from a steel plate. A holding portion is integrally molded with the annular fitting member. A wheel speed sensor is arranged opposite to the encoder. Several substantially circular arc notches are formed on the outer circumference of the holding portion so that portions of the periphery of the annular fitting member are exposed from the holding portion.
摘要:
A novel process for efficiently and easily producing a compound represented by the formula: wherein ring A is a benzene ring that may be optionally further substituted in addition to the group represented by W, or a salt thereof; which comprises reacting a compound represented by the formula: wherein R1 and R2 are the same or different and each is a hydrogen atom, an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group, Y is a halogen atom, ring A is a benzene ring that may be optionally further substituted in addition to the group represented by Y and ring B is an optionally substituted benzene ring, or a salt thereof, with a compound represented by the formula: WH wherein W is wherein ring C is an optionally substituted benzene ring, ring D is an optionally substituted 5- to 7-membered nitrogen-containing heterocyclic ring, R3 is a hydrogen atom, an aliphatic hydrocarbon group containing an aromatic group or an acyl group, and R4 is a hydrogen atom, an optionally substituted hydrocarbon group or an acyl group, or a salt thereof and thereafter, if necessary, deprotecting the resultant product, which is suitable for industrial production.
摘要:
A guide device for visually handicapped person which has a portable unit and a position indicator unit. The portable unit is carried by the visually handicapped person and includes a radio frequency signal oscillator. The position indicator unit is disposed to a desired place and includes a radio frequency signal receiver and a loud speaker.
摘要:
A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member, an inner member, double row rolling elements, a sensor holder, and a pulser ring. The sensor holder cover has a cylindrical fitting portion press-fit onto the inner side end portion of the outer member. A flange portion extends radially inward from the fitting portion. The flange portion is in close contact with the end face of the outer member. A bottom portion extends further radially inward from the flange portion. The holding portion is integrally joined to the bottom portion. The flange portion is formed with a flat surface so that it forms an abutting width larger than 5 mm or more, against the end face of the outer member, or larger than 50% or more, relative to the flat width of the end face of the outer member.
摘要:
A wheel bearing apparatus incorporating a wheel speed detecting apparatus has an outer member, an inner member, double row rolling elements, a sensor holder, and a pulser ring. The sensor holder cover has a cylindrical fitting portion press-fit onto the inner side end portion of the outer member. A flange portion extends radially inward from the fitting portion. The flange portion is in close contact with the end face of the outer member. A bottom portion extends further radially inward from the flange portion. The holding portion is integrally joined to the bottom portion. The flange portion is formed with a flat surface so that it forms an abutting width larger than 5 mm or more, against the end face of the outer member, or larger than 50% or more, relative to the flat width of the end face of the outer member.
摘要:
A novel process for efficiently and easily producing a compound represented by the formula: wherein ring A is a benzene ring that may be optionally further substituted in addition to the group represented by W, or a salt thereof; which comprises reacting a compound represented by the formula: wherein R1 and R2 are the same or different and each is a hydrogen atom, an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group, Y is a halogen atom, ring A is a benzene ring that may be optionally further substituted in addition to the group represented by Y and ring B is an optionally substituted benzene ring, or a salt thereof, with a compound represented by the formula: WH wherein W is wherein ring C is an optionally substituted benzene ring, ring D is an optionally substituted 5- to 7-membered nitrogen-containing heterocyclic ring, R3 is a hydrogen atom, an aliphatic hydrocarbon group containing an aromatic group or an acyl group, and R4 is a hydrogen atom, an optionally substituted hydrocarbon group or an acyl group, or a salt thereof and thereafter, if necessary, deprotecting the resultant product, which is suitable for industrial production.
摘要:
A wheel bearing apparatus with an incorporated wheel speed detecting apparatus has an outer member with double row outer raceway surfaces formed on its inner circumferential surface. An inner member includes a wheel hub with an integrally formed wheel mounting flange at one end. A cylindrical portion axially extends from the wheel mounting flange. An inner ring is fit onto the cylindrical portion of the wheel hub. Double row inner raceway surfaces, opposite to the double row outer raceway surfaces, are formed on the outer circumferential surfaces of the wheel hub and inner ring, respectively. Double row rolling elements are arranged between the outer and inner raceway surfaces. An encoder is mounted on the outer circumferential surface of the inner ring. An annular sensor holder is arranged on the end of the outer member opposite to the encoder. A wheel rotation speed detecting sensor is integrally molded with the sensor holder and arranged opposite to the encoder, via a predetermined radial gap. The encoder has an annular ring configuration with its characteristics alternately and equidistantly varying along its circumferential direction. A seal is arranged at the inboard side of the encoder via the sensor holder. The seal includes a first annular sealing plate and a second annular sealing plate. The first and second annular plates are mounted on the sensor holder and the inner ring, respectively, and opposite toward each other.