A hub-driven integrated wheel for a children vehicle and an assembly method thereof are provided. The hub-driven integrated wheel includes a hub, a gearbox installed in the hub, and a tire is arranged on a periphery of an outer side of the hub. The gearbox is clamped to the hub to drive the integrated wheel to move. A limit groove is formed inside an outer side of a gear fixing upper cover along a width direction of the integrated wheel, and a driving motor is assembled in the limit groove. The driving motor is longitudinally assembled in the limit groove, and a driving shaft of the driving motor passes through the gear fixing upper cover and connects to a gear, and the gear is connected to a gear transmission mechanism.

A wheel hub for a utility vehicle drive axle includes a hollow section extending between a first axial end and a second axial end. The hollow section has centering sections defining a centering outer diameter of the hollow section for centering at least one wheel rim on the hollow section. The centering sections are separated from one another in the circumferential direction by intermediate sections, each of the intermediate sections being radially recessed relative to the centering sections. The intermediate sections are formed by machining the hollow section between the centering sections. The wheel hub has a flange section transitioning from the first axial end of the hollow section, the flange section projecting radially outwards relative to the hollow section, with the at least one wheel rim being couplable to the flange section.

An in-wheel drive device includes: a wheel bearing including a hub; and a speed reducer at least partially disposed in an internal space of the wheel bearing. The speed reducer includes: planet gears; a ring gear configured to engage the planet gears; and a carrier coupled to the planet gears and configured to transmit, to an outside of the in-wheel drive device, power generated by a revolution of the plurality of planet gears. A first sealing part is disposed in a region in which the carrier and the wheel bearing face each other.

An axle assembly having a preload bolt. The preload bolt may couple an output flange that may be supported by a roller bearing assembly to a planet carrier. A preload force may be exerted on the roller bearing assembly when the preload bolt is tightened to the planet carrier.

The present disclosure relates to a wheelchair comprising a wheel axle (1) having a wheel axle end portion (9) and hub (3) having a central through-opening (11) arranged to receive the wheel axle end portion (9). The wheel axle end portion (9) has an external surface having three chamfered faces (3a, 3b), each chamfered face (3a, 3b) defining a planar surface, and the hub (3) has inner walls (13a, 13b, 13c) defining the central through-opening (11). The inner walls (13a, 13b, 13c) are arranged to engage with the chamfered faces (3a, 3b) of the wheel axle end portion (9) to prevent relative rotation between the hub (3) and the wheel axle (1).

An apparatus for installing a torque tube includes a first clamp portion and a second clamp portion. The first clamp portion is arcuate in shape and has opposed first distal ends. The second clamp portion is arcuate in shape and has opposed second distal ends configured to abut the first distal ends of the first clamp portion to form a ring. The first clamp portion and the second clamp portion are configured to clamp a torque tube therebetween. The apparatus also includes a plurality of legs depending downwardly from the first clamp portion and the second clamp portion which are configured to set a spacing between the torque tube and a seal ring.

A hub arrangement for twin wheels comprises a stationary carrier; an intermediate hub which is rotatable about an axis of rotation and which can be driven by a drive shaft; a differential gear having an input which is connected to the intermediate hub; a first wheel hub which is connected to a first output of the differential gear; and a second wheel hub which is connected to a second output of the differential gear. The hub arrangement furthermore comprises a first braking apparatus which is effective between the stationary carrier and the intermediate hub and a second braking apparatus which is effective between the stationary carrier and the second wheel hub or between the intermediate hub and the second wheel hub. In this respect, the first braking apparatus and the second braking apparatus can be actuated separately from one another.

The wheel (1) for pedal-assisted bikes comprises: a fixed structure (2) having attachment means for the attachment to the frame (T) of a bike (B) with a driving pedal crank (P); a circle element (10, 11, 12) mounted on the fixed structure (2) in a revolving way around a main rotation axis (A); a propulsion disk (13) mounted on the fixed structure (2) in a revolving way and drivable in rotation by the driving pedal crank (P); motion transmission means (15, 16) for the transmission of the rotational motion from the propulsion disk (13) to the circle element (10, 11, 12), which comprise at least a first detection device (16) suitable for detecting the driving torque transmitted to the circle element (10, 11, 12) from the propulsion disk (13); an electric motor (54, 55) associated with the fixed structure (2) and suitable for cooperating with the propulsion disk (13) to motorize the circle element (10, 11, 12); and a processing and control unit (57, 58) operatively connected to the first detection device (16) and to the electric motor (54, 55) and suitable for controlling the activation of the electric motor (54, 55) according to the driving torque detected by the first detection device (16); wherein the first detection device (16) comprises: a measuring element (61, 62) which is subject to a stress condition due to the effect of the driving torque transmitted to the circle element (10, 11, 12) by the propulsion disk (13); and at least a measuring sensor (63) which is arranged in correspondence to the measuring element (61, 62) and which is suitable for detecting the stress condition of the measuring element (61, 62) and for producing a corresponding electronic signal which can be processed by the processing and control unit (57, 58).

A driving mechanism of a bicycle free-coaster hub includes a driving assembly, a clutch assembly, an epicyclic gear assembly, a resisting member, and forward drag and reverse drag members. The clutch assembly includes an output clutch unit disposed inner the hub and an input clutch unit disposed with the driving assembly to form a clutching or engaging state with the output clutch unit. The epicyclic gear assembly includes a sun gear coupled with the input clutch unit, a ring gear mounted on the hub, a planet gear carrier having a plurality of planet gears engaged with the ring gear and the gear portion of the sun gear. The resisting member is disposed between the sun gear and the hub axle. The forward drag member is disposed between the ring gear and the sun gear. The reverse drag member is disposed between the planet gear carrier and the hub axel.

An axle assembly having a spindle, an axle shaft, and a wheel end assembly. The wheel end assembly includes a hub and a gear reduction unit. The gear reduction unit includes first and second side gears, a case, and a pinion gear that is rotatably disposed on a pinion pin. The case is rotatable with the hub.