This bearing device (1) for vehicle wheels comprises: an inner undercut part (8) provided in a portion at which an inner rolling surface (3d) formed on the inner side of an inner member (3) and an inner flange surface (3m) of the inner rolling surface (3d) intersect; an outer undercut part (9) provided in a portion at which an inner rolling surface (3c) formed on the outer side of the inner member (3) and an outer flange surface (3n) of the inner rolling surface (3c) intersect; and a vehicle wheel installation flange (3e) provided at a portion adjacent to the inner rolling surface (3c) formed on the outer side of the inner member (3), wherein, when the radius of curvature of the inner undercut part (8) is Ri, and the radius of curvature of the outer undercut part (9) is Ro, the relationship of Ri<Ro is satisfied.

A wheel mounting structure relates to a structure for fixing the wheel to the wheel hub which includes a substantially cylindrical spigot joint part protruding from the hub axle part toward the vehicle body outer side with respect to the flange part. In the spigot joint part, the first cylindrical outer peripheral surface and the groove are formed. The annular protruding part is provided so as to protrude toward the center of the wheel from the inner peripheral surface of the center hole. In a state where the wheel is fixed to the flange part using the fastening members, the fitting part and the annular protruding part fit with each other. In a state where the fastening members are removed, the annular cylindrical protruding part is engaged with the groove.

A sensor is mounted to or embedded in a wheel hub. The sensor node includes a power source and a sensing device that detects and monitors at least one parameter associated with the wheel hub. The sensor node also includes a communication module that communicates via wireless communication signals and a processing device in communication with the sensing device and the communication module. The processing device collects data from the sensing devices, processes the data, and based on that processing, communicates information relating to the wheel hub to a remote server or network. A mesh network of multiple sensor nodes can be applied to multiple different wheel hubs on a vehicle and communicate with a central processing device. The processing device can thus monitor performance and/ or operation of each wheel hub.

A wheel bearing device equipped with: an inner member including an outer ring (2), a hub ring (3), and at least one inner ring (4) press-fitted into the hub ring (3); multiple rows of rolling bodies (5a/5b); a magnetic encoder (9) provided on an end portion of the inner ring; a cover (10) fitted onto the outer ring (2); and a magnetic sensor (11) provided on the cover. The cover includes a large-diameter cylindrical section (10a) fitted onto the outer ring, a step section (10b) protruding toward the inside in the radial direction and contacting an end surface of the outer ring, and a small-diameter cylindrical section (10c) extending in the axial direction from the step section. A portion of the ground-surface side of the small-diameter cylindrical section forms a protruding circumferential surface (S), and a drain hole (10e) is formed in the protruding circumferential surface (S).

A brake disc arrangement to be located at an end of an axle of a vehicle driven by an electric motor includes a rotor assembly having multiple rotor assembly pieces joined together with fasteners, as well as an adaptor. The pieces mentioned include rotor sections defining an engagement portion having surfaces to be contacted by friction pads. The rotor assembly also includes an attachment base and an intermediate section, surrounding a rotor assembly axis of rotation, extending along the rotor assembly axis of rotation between the engagement portion and the attachment base. When assembled, the adaptor extends between a wheel hub base and the attachment base of the rotor assembly so that the rotor assembly is securable to the wheel hub. The adaptor defines an internal volume within which a housing for the electric motor and at least a portion of the wheel hub are receivable.

Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.

A bearingless hub assembly comprising a rim hollowed to receive a tube magnet, and magnets embedded around the circumference of the rim on both ends. The rim is capped by front and rear rim plates configured to hold the embedded magnets in place and fitted to receive respective circular magnets. Similar magnets in corresponding front or rear drive plate maintain space (i.e., levitation) vis--vis the front and rear rim caps by repelling each other, thus allowing the rim (and, as applied, a mechanically-attached tire assembly) to move freely with no friction. The front and rear drive plate carry forward and reverse electromagnetic actuators as well as forward and reverse levitation control units, power generators and speed sensors. These components mount 360 degrees around the circumference of the drive plates while the embedded magnets of the rim spin through when in motion.

A hub for bicycles including a hub shell which is rotatably supported relative to a hub axle, a rotor rotatably supported relative to the hub axle by means of two rotor bearings, and a freewheel device having two interacting freewheel components namely, a hub-side freewheel component and a rotor-side freewheel component. The two freewheel components each include axial engagement elements and they are movable relative to one another in the axial direction between a freewheel position and an intermeshing engaging position. Rolling members are provided for defined accommodation in the hub-side freewheel component to support the hub shell relative to the hub axle. An attachment portion and a centering portion are configured in the hub shell and an attachment area and a centering area are configured on the hub-side freewheel component. The attachment area is connected with the attachment portion and the centering area is centered on the centering portion.

A wheel hub motor for an electric vehicle includes eight sector-shaped through holes uniformly distributed in the circumference of a disc brake fixed to a shaft, and magnetic conductive ribs made of a magnetic conductive material arranged between two through holes. A stator core consists of nine square-C-shaped sub stator cores, each sub stator core surrounds two sides of the disc brake (6) and is fixed to a vehicle frame, adjacent sub stator cores are different by 30 degrees in a circumferential direction, a concentrated armature winding is wound around a yoke part at the middle portion of the sub stator core. A permanent magnet is fixed to a surface of an inner side of each sub stator core towards the disc brake, the brake caliper is fixed to the vehicle frame and is located at a position without the stator core in a circumferential direction.

A motorized vehicle assembly includes an axle comprising a channel extending along a central axis of the axle, a socket positioned within the channel of the axle, and a motorized wheel configured to be mounted on an end the axle. The motorized wheel includes a boss configured to engage the end of the axle when the motorized wheel is mounted on the axle, an electric motor, a tire mounted on the rotor, and a plug positioned within the boss, the plug configured to engage with the socket when the motorized wheel is mounted on the axle. The electric motor includes a stator fixed to the boss and a rotor surrounding the stator, the rotor configured to rotate relative to the stator. The electric motor is configured to cause the rotor to rotate relative to the stator to cause the tire to rotate.