Abstract:
A rolling bearing unit having a sensor comprising: a first raceway member, on the outer circumferential surface of which a raceway surface is provided; a second raceway member, on the inner circumferential surface of which a raceway surface is provided; a plurality of rolling elements arranged between the raceway surface of the first raceway member and the raceway surface of the second raceway member; a base plate, the shape of which is formed into an annular and flat shape, having a through-hole that the first raceway member penetrates; a first coil, the shape of which is formed into a plane shape, arranged so that the first coil surrounds an overall circumference of the first raceway member; and a plurality of second coils, the shape of which is formed into a plane shape, arranged around the first coil.
Abstract:
A rolling bearing device with a sensor includes a rotational component estimator that extracts a rotational synchronization component included in the rotation of an inner shaft relative to an outer ring from each of a signal output by a first displacement detector and a signal output by a second displacement detector. The rotational component estimator performs rotational operation and integration operation.
Abstract:
A rocker arm formed by pressing includes: a rocker arm body substantially U-shaped in section which is made of a plate material; and a roller rotatably supported between the side walls of the rocker arm body substantially at the middle, the rocker arm body having a semi-spherical pivot engaging portion at one end, and a valve engaging portion at the other end. In the rocker arm, each of the side walls has a pivot-side portion beside said pivot engaging portion which is smaller in wall thickness than the remaining.
Abstract:
A rolling bearing assembly for a wheel includes a cylindrical fixed bearing ring fixed to a vehicle body side, a rotary bearing ring rotatably inserted to inside of the fixed bearing ring, and plural rows of rolling elements rollably arranged between the bearing rings. An annular sensor housing is attached to an inboard side end portion of the fixed bearing ring and includes a plurality of displacement sensors for detecting gaps between the displacement sensors and outer peripheral surfaces of inboard side end portions of the rotary bearing ring in a circumferential direction. Further, an inboard side end portion of the sensor housing is sealed by an inner side seal device.
Abstract:
A magnetized pulsar ring of the invention is a pulsar ring fixed to an outer peripheral surface of a supporting member and including a ring body in which a number of magnetic poles are at predetermined intervals in a peripheral direction. The ring body 11a is formed of a plastic magnet, and has a cushion member made of an elastic body that is interposed between the ring body and the outer peripheral surface.
Abstract:
A rolling bearing assembly for a wheel includes a cylindrical fixed bearing ring fixed to a vehicle body side, a rotary bearing ring rotatably inserted to inside of the fixed bearing ring, and plural rows of rolling elements rollably arranged between the bearing rings. An annular sensor housing is attached to an inboard side end portion of the fixed bearing ring and includes a plurality of displacement sensors for detecting gaps between the displacement sensors and outer peripheral surfaces of inboard side end portions of the rotary bearing ring in a circumferential direction. Further, an inboard side end portion of the sensor housing is sealed by an inner side seal device.
Abstract:
A magnetized body (12) is constituted by a resin bonded magnet, and is fixed to a support member (11) in accordance with an integral injection molding, in such a manner that a come-off preventing portion (15) engaging with an outer peripheral portion of a flange portion (14) is formed in an outer periphery of the magnetized body (12). An elastic layer (17) is interposed between the magnetized body (12) and the flange portion (14) A side surface of the flange portion (14) is provided with a concave portion (16) having a depth corresponding to a thickness of the elastic layer (17).
Abstract:
A pump body is formed of a pump housing and a pump plate provided in front of the pump housing. A motor housing is fixed to a rear end of the pump housing, and accommodates a pump driving electric motor. A bearing device that supports a motor shaft includes a first bearing that is arranged in a closed-end hole formed in a rear face of the pump plate and supporting a front end portion of the motor shaft, and a second bearing that is arranged radially inward of a cylindrical bearing support portion formed in the pump housing and extending inside the motor housing and that supports a middle portion of the motor shaft. A pump rotor is arranged between the first bearing and the second bearing.
Abstract:
A first spacer, a second tubular member, and a second spacer are externally fitted and fixed to an outer peripheral surface of a nut. The second tubular member is formed by stacking a plurality of silicon steel plates without any gap, and is arranged between the first spacer and the second spacer axially. The outer diameter of an outer peripheral surface of the second tubular member is made larger than the outer diameter of an outer peripheral surface of the first spacer and the outer diameter of an outer peripheral surface of the second spacer. A detection surface of a first displacement detector is made to radially face a contact portion between the second spacer and the second tubular member, while a detection surface of a second displacement detector is made to radially face a contact portion between the first spacer and the second tubular member.
Abstract:
A core of a fixed-side sealing member has a fitting cylindrical part fitted with the fixed-side sealing member. An outer end portion of the fitting cylindrical part is insertion-molded to be disposed within a resin member. An outer edge portion of the fitting cylindrical part in an axial direction thereof is bent.