A cable adjusting unit includes a first member, a second member and an actuator. The second member is movably arranged with respect to the first member. The actuator is operatively coupled to at least one of the first member and the second member. The actuator is arranged to relatively move the first member with respect to the second member.

A sheath for a cable for a bicycle includes a tubular lining, a reinforcing tube and a tubular colored layer. The reinforcing tube is provided on the tubular lining. The reinforcing tube includes a tubular plastic layer and a tubular web embedded in the tubular plastic layer. The tubular web includes two groups of helical fibers. The fibers in one group intersect the fibers in the other group. The tubular colored layer is provided on the tubular plastic layer.

A carriage having a frame, where the frame is foldable between a use position and a storage position. The frame includes an attachment point for a plurality of frame components and a pivot lock for retaining the frame in the use position. The pivot lock is operated by rotating a portion of the frame of the carriage to unlock the pivot lock, permitting the carriage to be folded to the storage position.

A method (100) for operating a gas bearing (1), wherein the gas bearing is formed by a rotor (11) and a stator (12), wherein when there is rotation against a stator (12) with a lift-off rotational speed n.sub.L the rotor (11) changes from mixed friction with the stator (12) into fluid friction with a medium (13) located between the stator (12) and the rotor (11), wherein the rotational speed of the rotor (11) is kept at or above an idling rotational speed n.sub.I, wherein—in response to a first information item (21), on the basis of which a change ΔF is to be expected in the acceleration forces F acting on the gas bearing (1), a new value of a safety factor r.sub.N:=n.sub.I/n.sub.L between the idling rotational speed n.sub.I and the lift-off rotational speed n.sub.L is determined (110), and/or—in response to a second information item (31), on the basis of which a change Δn.sub.L is to be expected in the lift-off rotational speed n.sub.L, a new value n.sub.L,neu is determined for the lift-off rotational speed n.sub.L (120), wherein the idling rotational speed n.sub.I of the gas bearing (1) is adapted to the changed value of the safety factor r.sub.N, and/or to the changed value n.sub.L,neu of the lift-off rotational speed n.sub.L, (130). The invention further relates to an associated computer program.

The present disclosure relates to a shaft adapted to be at least partially inserted into an opening of a shaft receiver. The shaft comprises a nominal shaft portion adapted to be at least partially inserted into the opening of the shaft receiver, followed by an intermediate shaft portion that in turn is followed by a guide shaft portion terminating the shaft. The shaft comprises a cross-section with a cross-sectional contour in a plane including the central axis, the cross-sectional contour comprising a nominal shaft portion contour of the nominal shaft portion, an intermediate shaft portion contour of the intermediate shaft portion and a guide shaft portion contour of the guide shaft portion. The cross-sectional contour comprises a radial direction being perpendicular to the central axis, wherein, as seen in the radial directio, the nominal shaft portion contour is located at a nominal radial distance from the central axis.

A wheel bearing assembly includes at least two rolling-element bearings which participate together in a bearing assembly. At least one of the rolling-element bearings includes at least one bearing ring, which, for transmitting a propulsion, is attached to a drive shaft . At least one brake element of the wheel bearing assembly is immovable relative to the bearing ring and a connecting unit of the wheel bearing assembly connects the brake element to the bearing ring. By a removal of the connecting element from the bearing ring in which none of the rolling-element bearings need to be removed, even only partially, the brake element is removable from the rolling-element bearings and is displaceable to any distance from the bearing ring.

A bicycle bearing system comprising: an integrated cup, the integrated cup having an outer diameter; a plurality of rolling elements configured to abut and rotate against a first race groove located on an inner surface of the integrated cup; a second race groove configured to abut and rotate about the plurality of rolling elements, the second race groove located on an inner surface of the inner race, the inner race having an inner diameter; where the rolling elements do not have a separate outer race, but rather the inner surface of the integrated cup acts as the outer race to the rolling elements; and where the rolling elements, integrated cup and inner race are axially locked when assembled as a single cartridge unit due to the geometry of the rolling elements, first race groove and second race groove.

A bearing assembly includes a rolling bearing having a bearing ring fitted to a mating member, i.e., a shaft or a housing, with a clearance fit. Of the bearing ring and the mating member, the bearing ring has a flank face that separates a fitting surface of the bearing ring across the entire width thereof. The flank face defines a radial gap between the bearing ring and the housing. In a load receiving region where the radial gap remains, a portion of the bearing ring which is deformed in a wave-shaped pattern is kept out of contact with the fitting surface of the housing. The wave-shaped deformation of the bearing ring does not act as traveling waves that cause creep of the bearing ring.

A first slider and a fifth-speed driving gear are arranged along an axial direction on a driving shaft. A shift fork has an end located in a guide groove of a shift drum, and another end connected to the first slider. In gear-shifting to a fifth speed, the first slider moves on the driving shaft so that a plurality of fifth-speed dog projections and a plurality of fifth-speed dog recesses mesh with each other. At least four of the plurality of fifth-speed dog projections and at least four of the plurality of fifth-speed dog recesses mesh within a range of 90 degrees at one side in the circumferential direction of the fifth-speed driving gear and a range of 90 degrees at another side in the circumferential direction of the fifth-speed driving gear with respect to a reference line.

A stop for handlebars of two-wheeled vehicles is integrated into the control head bearing of the vehicle. It is formed by a first component installed in the control head bearing with a circular arc-shaped groove that is arranged coaxially to the rotational axis of the control head bearing and a stop element protruding into this groove. The stop element is arranged on a second component that can be moved relative to the first part. The stop at the lower control head bearing is arranged within the head tube. The circular arc-shaped groove is arranged in the base and open towards the lower bearing shell. The lower bearing shell comprises an open recess extending over its height to the lower rolling bearing, which receives a stop element. The stop element has a radial lug protruding into the circular groove of the base.