Forward movement of a bicycle results when force is transfer from the chain or belt to a sprocket on a cassette. The cassette is splined to the cassette driver and causes the wheel of the bike to rotate when torque is applied from the cassette to the cassette driver. The cassette driver is typically made of a strong hard material such as steel to withstand the forces in parted thereon by the cassette. The present disclosure provide a hub configuration and method that enables the cassette driver to be made with construction of a lighter weight material such as aluminum yet still withstand the toque applied thereto.

A reversible torque vector multiplier for gear reduction or gear multiplication of vehicle driveline, machinery or any rotating structure, such as an automobile or offroad vehicle. Said embodiments comprise an input structure such as an axle or driveline, an output structure such as wheel studs or a driven driveshaft, with a pinion gear and an annular or ring gear. In preferred embodiments replacement of a standardized component such as a unitary bearing hub or a carrier bearing results in gearing down or gearing up the final output speed and corresponding torque. In some applications the orientation can be swapped resulting in switching gear reduction with multiplication, and vice versa. A pinion gear with automatic lubrication channels. Apparatus and method claims are provided.

A driven wheel assembly includes a fixed axle spindle, a rotating drive shaft extending inside the axle spindle, a bearing, a hub, a brake disc, and a wheel rim. An inner ring of the bearing is mounted on the spindle. The hub is mounted on an outer ring of the bearing. The drive shaft, the brake disc and the wheel rim are coupled in rotation with the hub. The brake disc includes a radial friction part and a tubular portion which is fastened to the hub. The brake disc is fastened to the hub by a radial fastener extending along radial directions with respect to a rotation axis of the assembly and mounted through the tubular portion of the brake disc.

An electrically motorized driving wheel for vehicles such as bicycles is provided. The electrically motorized wheel can include a wheel rim, a housing disposed inside and connected to the wheel rim, wherein the housing defines an installation space inside the housing, a driving force generating mechanism disposed in the installation space, and a driving force transfer mechanism connected to the driving force generating mechanism and configured to transfer a driving force generated from the driving force generating mechanism to the housing.

A driving device for a carriage includes a motor, a speed reducer, and a mecanum wheel. The speed reducer decelerates the power input from the motor and outputs a decelerated power. The mecanum wheel is rotated by the decelerated power output from the speed reducer. The speed reducer includes a speed reducing unit, a carrier, and a case. The speed reducing unit receives the power from the motor. The carrier supports the speed reducing unit. The case is rotatable relative to the carrier. The mecanum wheel is fixed on the case or the carrier.

Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.

Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.

Structural arrangements of wheel drive components facilitate the use of robust main roller bearings that are widely spaced apart from one another. This wide spacing minimizes the torque borne by the bearings for a given external load, because at least one bearing is placed closer to the expected load application point (e.g., the center of gravity of the wheel attached to the wheel hub of the drive unit). The present wheel drive bearings can support a heavy external load without expanding the overall size and configuration of a given wheel drive application.

The bicycle hub assembly includes a hub axle, a hub body, a bearing unit, a lock member, and a tool engagement member. The bearing unit is configured to rotatably support the hub body around the hub axle with respect to the rotational center axis. The bearing unit includes an outer race, an inner race and a plurality of rolling members. The lock member prevents the inner race of the bearing unit from rotating relative to the hub axle. The tool engagement member is configured to rotate the inner race of the bearing unit relative to the hub axle.

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.