Axle seat assemblies and methods of manufacturing thereof, are provided for attachment to an axle body (15). The axle seat assembly may be comprised of a first piece (42) and a second piece (50). The first piece (42) may have a first wall, a second wall and a first axle seat piece engagement portion providing a first engagement surface. The second piece (50) may have a third wall and a second axle seat piece engagement portion providing a second engagement surface. The first wall and the second wall of the first piece are oriented to engage a front surface of an axle body and the third wall of the second piece is oriented to engage a rear surface (30) of an axle body. The first and second engagement surfaces of the respective first and second pieces of the axle seat assembly are positioned and configured to engage one another to removably and reversibly secure with the use of a fastener the first piece to the second piece to form an axle seat assembly.

A method of manufacturing a rotating bearing unit includes to cause one end surface in the axial direction of the forming punch (46), formed by combining a plurality of punch elements (46, 46) divided in the circumferential direction, which are displaceable in the axial direction and which are not displaceable in the circumferential direction, and having a processing teeth (44, 44) at one end surface in the axial direction, to face the other end surface of the caulking section (20) in the axial direction. In this state, rolls (30a) are rotated about the central axis (α) of the hub main body (8) while pressing the other end surface of the forming punch (46) in the axial direction with a pressing surface (43) of the roll (30a) having a central axis (β) that is inclined with respect to the central axis (α) of the hub main body (8).

A method of manufacturing a rotating bearing unit includes to cause one end surface in the axial direction of the forming punch (46), formed by combining a plurality of punch elements (46, 46) divided in the circumferential direction, which are displaceable in the axial direction and which are not displaceable in the circumferential direction, and having a processing teeth (44, 44) at one end surface in the axial direction, to face the other end surface of the caulking section (20) in the axial direction. In this state, rolls (30a) are rotated about the central axis (α) of the hub main body (8) while pressing the other end surface of the forming punch (46) in the axial direction with a pressing surface (43) of the roll (30a) having a central axis (β) that is inclined with respect to the central axis (α) of the hub main body (8).

A tool for transferring a motor vehicle into a rollable state despite a parking lock having been activated includes a base which is fastenable to a vehicle wheel of the motor vehicle and an actuating element which is displaceable along a sliding direction relative to the base and via which, in a state of the base fastened to the vehicle wheel, by displacement of the actuating element along the sliding direction relative to the base, displacing a propeller shaft of the motor vehicle, a toothing engagement between a first toothing of the propeller shaft and a second toothing of a wheel hub can be undone, as a result of which the motor vehicle can be transferred into the rollable state. A travel limiting device specifies a travel by which the actuating element can be displaced at most relative to the base in order to undo the toothing engagement.

A leaf spring apparatus for a vehicle suspension includes a leaf spring, a carrier disposed on an end portion of the leaf spring and mounted on a wheel of a vehicle, a first connection unit connecting the end portion of the leaf spring and the carrier to each other, a cross member disposed on top of the leaf spring and supporting a body of the vehicle, and a second connection unit connecting the leaf spring and the cross member to each other.

A leaf spring apparatus for a vehicle suspension includes a leaf spring, a carrier disposed on an end portion of the leaf spring and mounted on a wheel of a vehicle, a first connection unit connecting the end portion of the leaf spring and the carrier to each other, a cross member disposed on top of the leaf spring and supporting a body of the vehicle, and a second connection unit connecting the leaf spring and the cross member to each other.

Systems and apparatuses include a tag axle system including an axle assembly, a linkage coupling the axle assembly to a vehicle chassis, and a hydraulic cylinder coupled between the vehicle chassis and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position, and acts as a spring damper suspension component.

Systems and apparatuses include a tag axle system including an axle assembly, a linkage coupling the axle assembly to a vehicle chassis, and a hydraulic cylinder coupled between the vehicle chassis and the axle assembly. The hydraulic cylinder actuates the axle assembly between a raised position and a lowered position, and acts as a spring damper suspension component.

To provide a frictional drive unit that can arrange drive rollers with high density and facilitate an attachment operation of the drive rollers, a frictional drive unit 2 includes a pair of drive disks 4, a plurality of drive rollers 5 rotatably supported by an outer circumferential portion of each drive disk, a pair of actuators 8 configured to independently rotate the pair of drive disks, and an annular main wheel 7 arranged between the pair of drive disks and coming into contact with the drive rollers. Each drive roller includes a roller shaft 41 and a round roller body 42 provided on an intermediate portion of the roller shaft. Each drive disk includes plural pairs of bearing grooves 45 each receiving both ends of the roller shaft of each drive roller. Each bearing grooves open toward the main wheel.

A suspension assembly for a vehicle may include a wheel support structure operably coupling a wheel to the suspension assembly, a bolt-in spring seat bracket operably coupled to the wheel support structure, and a spring supported by the bolt-in spring seat bracket and disposed between a chassis of the vehicle and the bolt-in spring bracket. The bolt-in spring seat bracket may be adjustable to change a ride height of the vehicle.