A method of manufacturing an annular insert molded article that suppresses contamination of a metal mold and generation of foreign matter without increase in material costs for an adhesive or contamination of a transfer jig, and has a high adhesion strength so that, when the annular insert molded article is attached to a rotating body, the adhesive does not peel off from the insert or remain as foreign matter in the rotating body. An annular insert molded article 1 is manufactured by injection molding in a state where a thermoset resin adhesive A is applied to a joining surface of an annular insert 2 attachable to a rotating body to an annular plastic 3 and then the annular insert 2 and the annular plastic 3 are placed in a metal mold.

A device of or attached to a roller body determines a rotational frequency of the roller body (or other object) rotating about an axis of rotation includes an acceleration sensor that detects an acceleration signal of an acceleration in a first direction extending in a radial or tangential direction to the axis of rotation of the roller body; and an electronic processing unit and configured to low-pass and high-pass, particularly adaptively high-pass filter, the detected acceleration signal, perform a derivation, with respect to time, of the filtered signal, optimize the signal with a subsequent absolute-amount generation and with moving averaging, and ascertain a frequency of the filtered acceleration signal, which corresponds to the rotational frequency of the roller body.

A bearing assembly, comprising a bearing configured to support a machine part, an installation space configured to receive at least one electronic module, a mount in the installation space that includes an electric line and the electronic module is attached to the mount, one or more continuous electronic conductor paths, and one or more interrupted conductor path that is parallel to the continuous electronic conduct path.

In order to determine information about the generation of heat in a bearing (10) in a simple manner, a bearing (10) includes an outer ring (12) secured to a securing member, and an inner ring (11) provided on the inside of the outer ring (12) and secured to a shaft that rotates in the circumferential direction relative to the securing member. A thermal flow sensor (14) is provided as a coating on a securing-side surface that includes the outer ring (12), and generates a thermoelectromotive force including information about frictional heat generated with the rotation of the shaft.

A bearing cover (10) has a bearing receiving space (18) for a bearing (9) and has a fastening region (17) for fastening the bearing cover (10) to a housing body (7). The bearing receiving space (18) of the bearing cover (10) is decoupled electrically from the fastening region (17) of the bearing cover (10) to prevent an undesired flow of electric current across the bearing (9).

The invention concerns a bearing, the inner member having an inner ring with a raceway and an inner wall assembled around an outer bearing surface of a hub of the inner member. The outer bearing surface has a groove in which an annular member ring is arranged having an inner segment axially immobilised in the groove and an outer segment that projects to form an axial stop for the assembly of the inner ring on the hub. The inner member is equipped with an encoder having a track capable of generating a signal representative of its rotation. The encoder also has a frame securing it in rotation to the inner member. The frame has a stop section that is interposed between the inner ring and the outer segment, the inner ring abutting axially on the segment via the stop section.

This invention relates to a bearing monitoring method and system suitable for the monitoring of faults in rolling element bearings. The method and system utilize an acceleration sensor that is sensitive to both acceleration and housing strain and which has the effect of amplifying acceleration events that coincide with areas of the housing strain signal that correspond to bearing ball-pass events. The housing strain signal due to ball-pass events can be used to synchronise or otherwise modify the sampling of acceleration signals, or to determine bearing performance characteristics.

A sensing device for vehicle includes a housing having an opening formed at one side thereof; a sensing part disposed inside the housing and configured to sense wheel-related information to generate a signal; an insert on which the sensing part is mounted and disposed in the housing through the opening; at least one connection part connected to the sensing part so as to supply power to the sensing part or to transmit the signal from the sensing part; a body coupled to the housing and formed of a first material such that a portion of the insert is embedded in the body; and a filling material provided to fill an inner space of the housing therewith and formed of a second material different from the first material.

A system for determining angular displacement, velocity and acceleration of a rotating member axially mounted to a platform including at least one digital storage disk having data stored concentrically thereon, the disk and rotating member having the same axis of rotation, at least one laser transmitter for emitting a laser beam directed towards the disk, at least one laser receiver for receiving a reflected portion of the emitted laser beam, at least one processor, and at least one memory storing software thereon for determining the angular displacement, velocity and acceleration of the rotating member. A method for determining the angular displacement, velocity and acceleration of the rotating member is also provided.

A nut is used with being fixed to a sensor cap. The sensor cap is attached to an outer ring of a bearing in a wheel bearing device of an automobile. The sensor cap includes a sensor holder for holding a magnetic sensor. The nut is made of steel, and has a screw portion in which a bolt is screwed to attach the magnetic sensor to the sensor cap. A surface of the nut is coated with a zinc-nickel alloy plating layer with a nickel eutectic ratio of 8 to 18%.