A rolling element bearing having inner and outer bearing rings with rolling elements therebetween, and an angle-of-rotation limiting device that limits the relative rotation between the inner and outer bearing rings within an angle-of-rotation range from 0° to greater than 360° and includes a first stop element arranged on the inner bearing ring and a second stop element arranged on the outer bearing ring. The first stop element is formed by a plurality of individual radial base bores arranged in peripheral succession in a row on the outer lateral surface of the inner bearing ring and by a slotted-hole-type radial base groove arranged between first and last radial base bores, and one or two separate angle limiters protruding radially beyond the radial base bores or groove can be inserted into the radial base bores or the radial base groove depending on the size of the angle of rotation to be limited.

An articulating surgical instrument includes a housing having a shaft extending therefrom, the shaft having a proximal segment and a distal segment separated by an articulation section configured to articulate the distal segment relative to the proximal segment upon actuation thereof. The articulating section includes: a ball joint having a plurality of opposing spherical segments, each adjacent pair of spherical segments defining a channel therebetween configured to receive an articulation cable therethrough, each channel including an angled surface on opposing sides thereof to allow articulation of each cable along a respective length thereof; and a pair of casings configured to operably receive and retain the ball joint on opposing ends thereof, each casing including a chamfer defined therein configured to rotationally receive an end of the ball joint therein, each casing including a corresponding number of apertures defined therein each configured to receive a respective articulation cable therethrough.

A thin section bearing assembly is for a gantry assembly and includes inner and outer rings each having inner and outer circumferential surfaces and rolling elements grooves and are each sized such that a ratio of the inside diameter to radial thickness is at least thirty (30). A plurality of rolling elements, preferably balls, are disposed between the outer ring groove and the inner ring groove. At least one elastomeric annular damper is disposed between the outer ring and the housing and/or between the inner ring and the rotor and has first and second axially spaced sections. As such, the first section is compressed more than the second section under bending moments in a first angular direction and the second section is compressed more than the first section under moments in a second angular direction. The one or more annular dampers each have a thickness calculated to optimize vibration reduction.

The invention relates to a bearing arrangement having a radial spherical plain bearing with an inner ring (10), which is arranged on a bolt (15) or pin and has a spherical outer contour (12), and with an outer ring (20), which has a hollow spherical inner geometry (22) for receiving the inner ring (10) and an outer geometry (21) for mounting in a bearing seat (30), wherein the inner ring (10) and the outer ring (20) are preloaded against one another in an axial direction via at least one preloading device (41, 42).

An intramedullary affixing apparatus, comprising: a hollow shaft suitable for insertion into a bone and adapted to accommodate a proximal anchoring device, a transmission arrangement, and a distal anchoring device, wherein the hollow shaft comprises a proximal threaded actuator and a distal threaded actuator, wherein the threading-in of the proximal threaded actuator exerts a linear motion of the proximal anchoring device, the transmission arrangement, and the distal anchoring device towards the distal edge of the hollow shaft and the threading-in of the distal actuator exerts an opposite motion.

A flexible catheter with a drive shaft, and associated devices and systems. In some examples, the disclosure describes a flexible catheter with a drive shaft, with a sleeve surrounding the drive shaft and with a sheath surrounding the drive shaft and the sleeve, wherein the drive shaft, the sleeve and the sheath are pliable, wherein the drive shaft at a proximal end of the drive shaft comprises a coupling element for connecting the drive shaft to a drive motor, wherein the drive shaft at least regionally consist of a alloy which contains at least 10% by weight of chromium, nickel and cobalt in each case.

This percussion apparatus includes a striking piston mounted so as to be displaced inside a piston cylinder and arranged to strike a tool; and a guide bearing comprising a guide surface configured to guide the striking piston during the displacements of the striking piston in the piston cylinder. The guide bearing includes a centering device configured to center the striking piston in the piston cylinder, the centering device comprising centering chambers formed in the guide surface and distributed around the striking piston, each centering chamber being fluidly connected to a high pressure fluid supply circuit; and at least one discharge groove formed in the guide surface of the guide bearing and located proximate to at least one of the centering chambers, the at least one discharge groove being fluidly connected to a low pressure circuit.

An apparatus for delivering a flow of gas having: a controller; a housing defining a gas-flow passage flowing a high concentration oxygen gas; a motor with windings, resilient bearing mounts and an impeller to deliver the gas through the gas-flow passage; a flexible printed circuit electrically connecting the motor to the controller and sensor system; and an elastomeric shield to pneumatically isolate the windings from the gas-flow passage.

A measuring method for a liquid metal slide bearing is disclosed. In at least one embodiment, the measuring method includes providing a liquid metal slide bearing to be measured, the liquid metal slide bearing including two bearing parts with liquid metal being arranged between the two bearing parts. The method further includes measuring inductance, or a variable associated with the inductance, of the liquid metal slide bearing; and determining a quantity of liquid metal in the liquid metal slide bearing based upon the inductance, or the variable associated with the inductance, measured. Furthermore, a corresponding measuring device, a liquid metal slide bearing and an x-ray tube and an apparatus are disclosed.

A gantry assembly includes a rotor, a stator and a bearing for coupling the rotor and the stator. The bearing includes an inner ring connected with the rotor or stator, an outer ring connected with the other one of the rotor and the stator and rolling elements between the two rings. The ring connected with the stator, preferably the outer ring, includes one or more damping washers disposed between the ring and the stator, each washer being disposed about one threaded fastener connecting the ring with the stator. Also, one or more damping cylinders are each disposed within a mounting hole of the ring connected with the stator and about a threaded fastener disposed within the hole. The bearing ring connected with the rotor may also include damping washers between the ring and the rotor or/and damping cylinders disposed within mounting holes receiving fasteners connecting the ring with the rotor.