Disclosed is a driveshaft joint embodiment providing increase of driveshaft joint strength and longer life by keeping the rotational diameter fixed and providing placement under the vehicle in dimensional terms subject to the rotation diameter thanks to the embodiment provided on the driveshaft joint.

Disclosed is a driveshaft joint embodiment providing increase of driveshaft joint strength and longer life by keeping the rotational diameter fixed and providing placement under the vehicle in dimensional terms subject to the rotation diameter thanks to the embodiment provided on the driveshaft joint.

A length-adjustable steering shaft may include a metallic hollow shaft with an opening in which a metallic inner shaft is accommodated rotatably-fixedly and in an axially movable manner. The steering shaft may also include a pull-out retention means with an outer stop that protrudes into an opening of the hollow shaft and an inner stop that protrudes outward from the inner shaft. The inner and outer stops may be formed from the metallic material of the hollow shaft or the inner shaft and may comprise stop surfaces that are directed toward each other in an axial direction. A layer of non-metallic material may be applied to at least one of the inner stop or the outer stop at least partially in a region of the stop surface.

A joint shaft includes at least one cross pin, the at least one cross pin including oppositely disposed pins on each of which a shaft member is attached; and a generator attached to at least one of the shaft members. The joint shaft may further include a sensor energized by the generator and attached to the joint shaft and/or a logic configured to evaluate an electrical output of the generator.

A drive shaft (1) includes a telescopic shaft (3) having an outer tubular shaft (9) and an inner tubular shaft (11) inserted slidable into the outer shaft (9). A lubrication system is further provided, including: a lubricant receiving chamber (39) housed in the inner shaft (11); a lubricant distribution block (41) housed in the inner shaft (11); lubricant supply ports (11.9) for supplying lubricant from the lubricant distribution block (41), through a tubular wall of the inner shaft (11), towards a gap between the inner shaft (11) and the outer shaft (9); at least a lubricant transferring duct (47.1; 47.2) from the receiving chamber (39) to the distribution block (41). wherein the supplying ports (11.9) are distributed in at least two positions offset in direction of the axis (A-A) of the telescopic shaft (3).

A drive shaft (1) includes a telescopic shaft (3) having an outer tubular shaft (9) and an inner tubular shaft (11) inserted slidable into the outer shaft (9). A lubrication system is further provided, including: a lubricant receiving chamber (39) housed in the inner shaft (11); a lubricant distribution block (41) housed in the inner shaft (11); lubricant supply ports (11.9) for supplying lubricant from the lubricant distribution block (41), through a tubular wall of the inner shaft (11), towards a gap between the inner shaft (11) and the outer shaft (9); at least a lubricant transferring duct (47.1; 47.2) from the receiving chamber (39) to the distribution block (41). wherein the supplying ports (11.9) are distributed in at least two positions offset in direction of the axis (A-A) of the telescopic shaft (3).

A first yoke includes a tubular portion extending in a first direction, a flange, and a pair of arms extending from the flange. Support holes for a joint spider are formed at tips of the respective arms. The arms have respective inner surfaces facing each other in a second direction. Each of the inner surfaces includes a first recessed portion and a second recessed portion as viewed in a third direction orthogonal to the first direction and the second direction. The first recessed portions are recessed such that the distance between the inner surfaces of the arms increases from a start end located closer to an opening edge of each support hole toward an end point located closer to a base end of the arm. Each of the second recessed portions connects the end point to an end surface of a flange so as to form a curved surface.

A first yoke includes a tubular portion extending in a first direction, a flange, and a pair of arms extending from the flange. Support holes for a joint spider are formed at tips of the respective arms. The arms have respective inner surfaces facing each other in a second direction. Each of the inner surfaces includes a first recessed portion and a second recessed portion as viewed in a third direction orthogonal to the first direction and the second direction. The first recessed portions are recessed such that the distance between the inner surfaces of the arms increases from a start end located closer to an opening edge of each support hole toward an end point located closer to a base end of the arm. Each of the second recessed portions connects the end point to an end surface of a flange so as to form a curved surface.

A method for producing a profiled hollow shaft for a telescopic steering shaft of a motor vehicle may involve providing a hollow shaft to be processed, a profile mandrel, and a roller head comprising at least one roller. The method may further involve introducing the profile mandrel into the hollow shaft in order to produce a groove in the hollow shaft. The method may also involve moving the profile mandrel and the hollow shaft together relative to the roller head, wherein movement of the profile mandrel and the hollow shaft relative to the roller head is performed exclusively in a direction of a longitudinal axis of the hollow shaft in order to form a groove.

A universal joint (U-joint) dismantling tool includes an actuator coupled to a yoke. The yoke has two substantially parallel legs, spaced to form a pull channel therebetween. Each yoke leg terminates in a free end defining a foot surface. The actuator is adapted to substantially linearly draw a puller at least partially along a length of the yoke pull channel, thereby increasing a distance between a pull surface and the yoke foot surfaces.