A motor driven omnidirectional treadmill that allows users to walk, jog, or run in any direct ion. When the treadmill is coupled with computer-generated immersive environments users can maneuver their way on-foot through 360-degree VR environments of infinite expanse and scope.

Multistage centrifugal compressor provided with a shaft with blades, which is mounted in a housing with bearings. At least one bearing is provided with a bearing damper element including a ring arranged between the shaft and the bearing. The ring includes slots through the thickness of the ring in the axial direction (X-X′) and at a distance from the radially-directed inner and outer surface of the ring. The slots are at least partially overlapping, and: A) the slots are filled with a liquid, and the axial annular surfaces are closed off by means of a protective cap; or: B) at least one of the annular surfaces is provided with a viscoelastic material or hysteretic damping material sandwiched between two concentric discs, which discs are attached to the ring; or: C) the slots are filled with a viscoelastic material.

An electromechanical steering system may include a reduction gearbox where a worm gear is mounted in first and second bearings rotatably about a longitudinal axis. Rolling elements are disposed between inner and outer rings of the bearings. The inner rings are rotationally fixed on a shaft driven by the worm gear. A spring element is disposed between the inner ring of the second bearing and the worm gear. The spring element has an at least partially annular main body that when installed extends coaxially with the longitudinal axis. Spring arms in a circumferential direction are spaced apart from the longitudinal axis emanating from an external circumferential side of the main body. A first spring arm has a first leg that points away from the longitudinal axis and a second leg on which a free end is disposed, with the second leg running at least partially parallel to the longitudinal axis.

A bearing arrangement to be mounted in a bearing support, with at least one rotary bearing and at least one elastomer sleeve accommodating the rotary bearing is described. The elastomer sleeve has at least one frictional contact surface configured to be accommodated in the bearing support and at least one stop collar. The stop collar (7) has recesses (8), and spring clips (9) arranged in the recesses (8), with which the elastomer sleeve (4) is secured to the bearing support (1).

A bearing arrangement includes a bearing receiver which has at least one receiver region. In embodiments a first resilient shaped body and a second resilient shaped body are inserted into the receiver region. The first and second resilient shaped bodies may be held so as to be pretensioned by a pretensioning device. In embodiments the at least one receiver region includes a first receiver and a second receiver, a base is configured with a through-hole between the first and the second receiver, and/or the base may form an axial limit for the first shaped body and for the second shaped body.

The present invention relates to a bearing cup set for a steering column comprising a bearing cup and a securing element, wherein the bearing cup has a bearing cup portion for the at least partial receiving of a rolling bearing and a holding portion extending radially outwards starting from the bearing cup portion. The bearing cup portion has a first opening side with a collar extending radially inwards and a second opening side. The securing element is connected to the bearing cup in such a manner that the securing element fixes a rolling bearing received by the bearing cup portion in the axial direction in respect of the bearing cup. A steering column comprises a jacket tube in which a steering shaft is received by the rolling bearing so as to be rotatable. The rolling bearing is arranged in the bearing cup portion of the bearing cup.

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.

A planar high-density ball bearing comprises a cage and balls; the cage is provided with multiple groups of ball holes for arranging the balls; the ball holes in each group are distributed in the circumferential direction of the cage in an ellipse; the centers of the ellipses in each of which a group of ball holes is distributed coincide with each other, the major axes of the ellipses lie in a common line. The ball holes in adjacent groups are arranged to be staggered in relative to each other in the circumferential direction of the cage, and the balls in the same group of the ball holes are distributed in an ellipse. A method for manufacturing the planar high-density ball bearing, nutation reducer are provided.

An electromechanical power steering system may include an electric motor with a motor shaft that drives a shaft that meshes with a helical gearwheel. The shaft may be disposed in a gear housing, and a first end of the shaft may be mounted in a bearing arrangement such that the shaft is rotatable about an axis of rotation. A second end of the shaft may be mounted in a floating bearing in the gear housing. The floating bearing may be enclosed by a compensation device having an inner ring that on two radially opposite sides includes a respective nose formed from an elastomer. The compensation device may also include an outer ring that encloses the inner ring circumferentially. The outer ring may have lugs for receiving the noses. In an unloaded state, a gap may exist between the inner ring and the outer ring outside a region of the noses.

A bearing assembly includes: a bearing; a pair of first vibration absorbing members each including a flexible part, an inner ring, and an outer ring, wherein the inner rings are fitted over the bearing in opposite directions along an axis; an annular second vibration absorbing member sandwiched between the pair of first vibration absorbing members in a direction along the axis to be disposed on a radially outer side of the inner rings, the annular second vibration absorbing member having a plurality of inner pin holes penetrating from an outer circumference of the annular second vibration absorbing member to an inner circumference thereof; and an annular holding member fitted over the outer rings and having a plurality of outer pin holes penetrating from an outer circumference of the annular holding member to an inner circumference thereof so as to respectively align with the inner pin holes.