The invention relates to a device for receiving a workpiece in a bearing device for rotatably mounting the workpiece about a bearing axis (L) associated with a workpiece bearing surface. The device comprises a bearing pedestal (14) including a bearing element (1) which has two concavely cylindrical bearing surfaces (5, 6) that lie next to one another in the same bearing plane and symmetrically to a plane of symmetry containing the bearing axis (L), the cylinder radii of the cylindrical bearing surfaces being greater than the radius of the workpiece bearing surface for which the bearing device is intended, wherein the cylinder axes of the two bearing surfaces (5, 6) are parallel to the bearing axis (L) and have a distance between each other.

The invention relates to a device for receiving a workpiece in a bearing device for rotatably mounting the workpiece about a bearing axis (L) associated with a workpiece bearing surface. The device comprises a bearing pedestal (14) including a bearing element (1) which has two concavely cylindrical bearing surfaces (5, 6) that lie next to one another in the same bearing plane and symmetrically to a plane of symmetry containing the bearing axis (L), the cylinder radii of the cylindrical bearing surfaces being greater than the radius of the workpiece bearing surface for which the bearing device is intended, wherein the cylinder axes of the two bearing surfaces (5, 6) are parallel to the bearing axis (L) and have a distance between each other.

The invention relates to a device for receiving workpieces to be balanced in a machine for performing an unbalance compensation having a bearing device (2) arranged on a machine frame for rotatable mounting of the workpiece (3) around a bearing axis (L), wherein the bearing device (2) has at least one bearing block (10) having two bearing shells (18, 19) differing in diameter and lying adjacent to each other in a direction transverse to the bearing axis (L). The bearing block (10) is movable transversely to the bearing axis (L) of the bearing device (2) into two bearing positions and another one of the two bearing shells (18, 19) is aligned centrally to the bearing axis (L) in each of the two bearing positions.

A porous aerostatic bearing includes a bearing seat and a plurality of porous plunger assemblies. The bearing seat is furnished with a plurality of accommodating holes. By locking the porous plunger assemblies individually into the corresponding accommodating holes, the porous aerostatic bearing with adjustable stiffness can thus be formed, difficulty in maintenance thereof can be lowered, and the entire service expense therefor can be substantially reduced.

A porous aerostatic bearing includes a bearing seat and a plurality of porous plunger assemblies. The bearing seat is furnished with a plurality of accommodating holes. By locking the porous plunger assemblies individually into the corresponding accommodating holes, the porous aerostatic bearing with adjustable stiffness can thus be formed, difficulty in maintenance thereof can be lowered, and the entire service expense therefor can be substantially reduced.

The disclosure concerns a rack-and-pinion gear for a motor vehicle. The rack-and-pinion gear includes a pinion shaft and a toothed rack, which are mounted inside a housing. In order to provide a rack-and-pinion gear with precise engagement, which can be produced economically, according to the disclosure it is provided that a position of the pinion shaft in the housing can be adjusted by at least one adjustment element so that a tilt of the pinion shaft relative to the toothed rack can be set.

The invention relates to a wiper motor (10) with a shaft (30) for driving a wiper arm (1), wherein the shaft (30) projects through an opening (31) of a housing (15) and in the region of the opening (31) is mounted radially in a bore (55) of at least one substantially sleeve-shaped element (40), and wherein the sleeve-shaped element (40) is fixed at least axially in the region of the housing (15). According to the invention, it is provided that the sleeve-shaped element (40) has at least two different cross-sections (41, 42), a first cross-section (41) which is designed to protrude axially through the opening (31) and a second cross-section (42) which is designed to be accommodated in an axially fixed manner within said opening (31).

The invention relates to a wiper motor (10) with a shaft (30) for driving a wiper arm (1), wherein the shaft (30) projects through an opening (31) of a housing (15) and in the region of the opening (31) is mounted radially in a bore (55) of at least one substantially sleeve-shaped element (40), and wherein the sleeve-shaped element (40) is fixed at least axially in the region of the housing (15). According to the invention, it is provided that the sleeve-shaped element (40) has at least two different cross-sections (41, 42), a first cross-section (41) which is designed to protrude axially through the opening (31) and a second cross-section (42) which is designed to be accommodated in an axially fixed manner within said opening (31).

An end fitting connector assembly includes an end fitting having a first end, a second end and a through opening that extends in a direction that is transverse to an end fitting axis extending through the first and second ends and in which the through opening is defined by a peripheral wall. An elastically deformable race fitted into the through opening of the end fitting includes an exterior surface that engages the peripheral wall and an interior surface configured to provide snap fitting engagement with a spherical ball mount. At least one feature retaining the race within the end fitting creates an increased disassembly force, which may prevent disassembly without employing a release tool or release feature. The interior and exterior surfaces of the race can include spherical surfaces for conforming to the spherical ball and the peripheral wall of the end fitting.

In one embodiment, a rotorcraft can include a teetering tail rotor assembly. The teetering tail rotor assembly can include one or more multi-bearing yokes. Each yoke can include three or more spherical bearings evenly spaced apart from each other. The teetering tail rotor assembly can include a tail rotor blade affixed to each yoke arm through the three or more spherical bearings. The physical dimensions of the three-bearing yoke can be 10% smaller than a two bearing yoke that can support an equivalent load. For example, the length of each three bearing yoke can be 28 inches, the thickness can be 0.85 inches, and the width can be 3.250 inches.