Provided is a vibration wave motor including: a vibrator; a friction member having a sliding surface; a guide member; a flexible substrate; and a fixing member configured to fix the friction member, the guide member, and the flexible substrate, wherein the vibrator and the friction member move relative to each other in a second direction, wherein the fixing member includes a substrate-fixing portion configured to fix the flexible substrate, wherein the flexible substrate includes: a joint portion; a first extending portion extending along the second direction; a bent portion configured to reverse and turn back the first extending portion; and a fixed portion to be fixed to the substrate-fixing portion, and wherein the flexible substrate is fixed on a surface of the substrate-fixing portion provided in a direction opposite to a direction in which the vibrator is brought into pressure-contact with the friction member.

A vibration wave driving apparatus includes a vibration actuator; and a driven member configured to be driven by the vibration actuator. The vibration actuator includes a vibrator having an electric-mechanical energy conversion element and an elastic member to which the electric-mechanical energy conversion element is fixed; a pressurizing member configured to pressurize the vibrator; a contacting member configured to pressurizing-contact with the vibrator by pressurizing the vibrator by the pressurizing member and move relative to the vibrator; and an outputting member configured to output a driving force to the driven member, the driving force generated by the movement of the contacting member relative to the vibrator. The driven member includes an output transmission member configured to hold the outputting member in a direction of the relative movement with a predetermined spring force.

An elastic body and a piezoelectric material are bonded to each other by a conductive bonding portion in which conductive particles are dispersed.

A motor includes a first vibrator, a plurality of biasing parts that are disposed around the first vibrator and that presses the first vibrator onto a contacting member in contact with the first vibrator, a first pressing member that is biased by the plurality of biasing parts and that includes a pressing part pressing the first vibrator by biasing force of the plurality of biasing parts, and a second pressing member that is biased by the plurality of biasing parts. The first vibrator and the contacting member move relatively by vibrations that occur in the first vibrator. The first and second pressing members integrally moves while the first vibrator moves. The first pressing member and the first vibrator are tiltable around a first direction orthogonal to both of a moving direction of the first vibrator and a biasing direction of the plurality of biasing parts.

A quick assembly structure used for a driver is provided. The driver comprises a motor, an upper shell and a lower shell, and the upper shell is combined with the lower shell. The quick assembly structure comprises a clamping cavity formed in the lower shell. The upper shell is provided with a clamping piece to be inlaid in the clamping cavity. One end of the clamping piece is fixedly connected to the upper shell, and the other end of the clamping piece is an open end. A clamping hole is formed in a side of the lower shell, and the upper shell is provided with a first hook to be inlaid in the clamping hole.

A quick assembly structure used for a linear driver includes a motor, an upper shell and a lower shell. The motor is combined with the lower shell through a clamping mechanism, and the lower shell is covered with the upper shell.

A vibration-type actuator can downsizes a pressing mechanism for bringing a vibrating body and a driven body into press contact with each other and generates required pressing force. The vibrating body has an elastic body, an electro-mechanical energy conversion element, and at least one projecting portion. The driven body has a driven base material that is brought into press contact with the vibrating body, and a permanent magnet joined to the driven base material. The driven base material and the elastic body face each other across the permanent magnet in a thickness direction of the elastic body. The permanent magnet is magnetized in the thickness direction of the elastic body. A magnetic action of the permanent magnet on the elastic body and the driven base material brings the projecting portion and the driven base material into press contact with each other in the thickness direction of the elastic body.

Provided is a vibration wave motor, including: a vibrator including a piezoelectric element and a vibrating plate; a friction member, which includes a friction-contact surface to be brought into contact with the vibrator, and is configured to perform relative movement with respect to the vibrator by vibration generated by the vibrator; and a guide mechanism, which includes a first guide member, a second guide member, and a rolling member arranged between the first guide member and the second guide member, and is configured to guide the relative movement, wherein the first guide member includes a groove portion formed of a first surface and a second surface to be brought into contact with the rolling member, and wherein the first surface is longer than the second surface in a direction of the relative movement.

A wheel hub assembly for motor vehicles, having a rotatable hub, a bearing unit in turn comprising a radially outer ring, a radially inner ring and a plurality of rolling bodies. The axial interface between the wheel hub assembly and a knuckle of a motor vehicle suspension provides at least one piezoelectric spacer configured to detect first mechanical vibrations coming from the components of the wheel hub assembly and to implement corrective action consisting of second mechanical vibrations of almost equal amplitude but with opposite direction and phase, so that the resultant of the first and second mechanical vibrations is close to zero.

A driving device includes a vibrator; a friction member; a first guide portion that guides the vibrator or the friction member in a first direction when the vibrator vibrates so that the vibrator and the friction member move relative to each other, the first guide portion enabling rotation of the vibrator and the friction member around an axis in the first direction; a moving member that moves when the vibrator and the friction member move relative to each other, the moving member being connected to the member to be driven; and a second guide portion that guides the member to be driven in a second direction when the moving member moves. The moving member is connected to the member to be driven such that the moving member is rotatable and movable in a direction orthogonal to the first direction with respect to the member to be driven.