There is provided a ball bearing having a cage and balls held in the cage, the balls arranged one behind the other at a distance from one another in a circumferential direction about an axis of rotation of the ball bearing. The cage assembled from at least two cage parts joined to one another in a bonded manner and completely enclose the balls in a circumferential surface extending around the axis of rotation. A first cage part designed as a snap cage having axial webs projecting in the direction of the axis of rotation from a closed base ring and form ball pockets therebetween them, the first cage part encloses the balls along their outer circumference by more than 180°, holds the balls positively while forming an undercut and limits displacement of the balls within the circumferential surface in the direction of the at least one other second cage part.

There is provided a ball bearing having a cage and balls held in the cage, the balls arranged one behind the other at a distance from one another in a circumferential direction about an axis of rotation of the ball bearing. The cage assembled from at least two cage parts joined to one another in a bonded manner and completely enclose the balls in a circumferential surface extending around the axis of rotation. A first cage part designed as a snap cage having axial webs projecting in the direction of the axis of rotation from a closed base ring and form ball pockets therebetween them, the first cage part encloses the balls along their outer circumference by more than 180° , holds the balls positively while forming an undercut and limits displacement of the balls within the circumferential surface in the direction of the at least one other second cage part.

A two-piece plastic ball bearing cage is designed to handle high-speed applications. Posts on one bearing half fit into holes in the other bearing half After the two halves are brought together, ultrasonic vibration is applied to the ends of the posts. The ultrasonic vibration deforms the post end to fit into a widened portion of the holes and welds material, thereby firmly securing the two cage halves to one another.

First and second bearing cage halves each having an annular base body and a plurality of pins extending from the base body and a plurality of pin receptacles, the first and second cage haves forming a bearing cage when the pins are received into the pin receptacles. A body of sacrificial material is located on the pins and/or in the pin receptacles which body is configured to be melted ultrasonically to join the first cage half to the second cage half and form the bearing cage.

A floating joint includes a driving side coupling portion and a driven side coupling portion serving as first and second connections. A pressure adjusting structure in the floating joint is provided between the bottom surface exposed region of the spherical portion for contact and the bottom surface facing region of a fixing ring without a gap, and has elasticity. Therefore, the floating joint relatively firmly maintains the one-side spherical contact relationship, in which the top region of the spherical portion for contact contacts a part of the bottom surface portion of the frame body by the elastic force of the pressure adjusting structure.

First and second bearing cage halves each having an annular base body and a plurality of pins extending from the base body and a plurality of pin receptacles, the first and second cage haves forming a bearing cage when the pins are received into the pin receptacles. A body of sacrificial material is located on the pins and/or in the pin receptacles which body is configured to be melted ultrasonically to join the first cage half to the second cage half and form the bearing cage.

A sensorized roller for a rolling bearing includes a roller body having an axial length and a bore that extends axial through the roller body and a housing in the roller bore. The housing includes a central sensing module having an axial length and at least one sensor in the central sensing module configured to measure at least one parameter related to a condition of the sensorized roller, an antenna module having an axial length that is secured to a first axial end of the central sensing module and a power module having an axial length that is secured to a second axial end of the central sensing module.

The ball joint includes: a ball stud including: a shaft member; and a ball portion formed at one end of the shaft member; and a holder made of a synthetic resin and configured to accommodate the ball portion in a pivotable manner. The holder includes: an opening portion from which the shaft member protrudes; a first member including a first ball sliding contact surface having a concave spherical shape approximate to a spherical surface of the ball portion; and a second member including: a second ball sliding contact surface having a concave spherical shape approximate to the spherical surface of the ball portion; and the opening portion formed in a center of the second ball sliding contact surface. Further, the first member and the second member respectively include joining surfaces fixed to each other by welding, and respectively include fixation reference surfaces that are brought into abutment against each other.