The invention relates to bicycle wheel hub structure, wherein two sides of wheel hub’s hub body are provided with wheel hub disc sets. The wheel hub disc sets are spaced with outer and inner hub discs. When assembled with several wheel spokes and a wheel frame, one end of the several wheel spokes is fixedly combined with the wheel frame and the other end of which is fixedly combined with the outer hub disc and the inner wheel hub respectively, so to disperse the stress generated by the wheel spokes, avoiding excessive force on the outer hub or inner hub. The outer and the inner hub discs are arranged at intervals, so that the spokes will be in contact with each other when assembled, reducing friction and affecting structural strength and service life, and achieving convenient structural use and good structural use function.

A detachable airplane wheel prerotation/landing brake cooling device is disclosed that comprises: an outer circular cage rim, an inner circular cage rim confronting and spaced apart from the outer circular cage rim, and a plurality of spaced apart arcuate blades spanning across and connecting the outer circular cage rim to the inner circular cage rim at a slant. Each arcuate blade includes a first section connected to the outer circular cage rim and a second section connected to inner circular cage rim. The plurality of slanted arcuate blades are, when the detachable airplane wheel prerotation/landing brake cooling device is being impinged by an airstream during the landing of the airplane, configured to (i) rotate the wheel about the axle in a forward direction, and (ii) funnel air into the plurality of annular spaces adjacent to the plurality of heat shields to thereby remove heat away from the disc brake assembly.

A wheel drive assembly for transferring propelling torque from a source shaft to a wheel, the source shaft receiving torque from a motion actuator. The wheel drive assembly includes a wheel-hub, adapted to have the wheel mounted thereon, the wheel-hub being arranged about a longitudinal axis, which is adapted to coincide with a rotation axis of the wheel. The wheel drive assembly further includes a drive axle and a constant velocity (CV) joint mounted onto an outer end of the drive axle. The CV joint connects the drive axle to the wheel-hub. An outermost surface of the CV joint is disposed outwardly of an outermost surface of the wheel hub, along the longitudinal axis of the wheel-hub.

A heat shield assembly for a braked aircraft wheel is provided. The heat sheild assembly includes a heat shield and at least one spacer having both a main body projecting from an outwardly-facing surface of the heat shield and a clamping element of generally cylindrical shape projecting from the body and passing perpendicularly through an opening in the heat shield. The clamping element can include an enlarged free end so as to co-operate with the body to form an annular groove engaged with the opening in the heat shield.

An electric wheel assembly with an integrated hub motor includes a tire, a rim, a hub, a planetary reducer, an inner rotor motor, a braking system and a steering knuckle assembly. The inner rotor motor is provided in the rim, and its rotor is hollow and fitted over a motor rotor holder. An end of the motor rotor holder is mounted with a sun gear to transmit power to the planetary reducer, and the other end thereof is mounted with a brake disc. The planetary reducer employs a two-stage planet gear. The planetary reducer further includes a planet carrier integrated with the hub, serving as the reducer's power output end. The hub and the knuckle sleeve pass through the hollow motor rotor holder, and hub bearings are arranged thereamong. The inner rotor motor and the planetary reducer can employ an integrated direct oil cooling technology.

A wheel hub driving system, including a housing, an electric motor, two planetary gear sets and a wheel hub bearing. The wheel hub bearing has a middle axle and an outer ring, the middle axle is fixed relative to the housing, and both a primary sun gear and a secondary sun gear are sleeved around the periphery of the wheel hub bearing. A stator of the electric motor, a primary geared ring and a secondary geared ring are all fixed to the housing. A rotor of the electric motor is anti-torsionally connected to the primary sun gear. A primary planet carrier is anti-torsionally connected to the secondary sun gear, a secondary planet carrier is anti-torsionally connected to the outer ring and the outer ring is configured to be anti-torsionally connected to a wheel rim so as to transmit power from the electric motor to the wheel rim.

A wet brake system, a method therefor, and a vehicle including such system, the system comprising: a housing enclosing a brake compartment, at least one friction plate rotatably disposed within the brake compartment, at least one separator plate disposed within the brake compartment, coupled to the housing and configured to be frictionally engaged with the at least one friction plate for braking the at least one friction plate, the at least one friction plate and the at least one separator plate configured to be at least partially submersed in a liquid held within the brake compartment, and a liquid reservoir, wherein a drain port is arranged such that the at least one friction plate when rotating is configured to convey liquid held within the brake compartment to the liquid reservoir via the drain port and a drain channel for draining the brake compartment.

A clip for a rotor disk of a brake assembly, the clip comprising: a first half comprising a first sheet metal strip having a body portion and a first end and a second end bent in a first direction relative to the body portion; and a second half comprising a second sheet metal strip having a body portion having a length the same as the length of the body portion of the first sheet metal strip, the second sheet metal strip having a first end and a second end bent in a second direction, opposite to the first direction, relative to the body portion of the second sheet metal strip; and wherein one of the first end of the first sheet metal strip and the first end of the second sheet metal strip is provided with a first pin protruding from the end.

An in-wheel motor unit may include: a rim member having a tire installed along an outer circumference thereof; a spoke connected to the rim member and rotated with the rim member; a motor part located in a mounting space formed by the rim member and the spoke, and configured to generate rotational power through power supply, and rotate the spoke; a knuckle part connected to the motor part and configured to support a suspension part; and a hub part having one side fixed to the spoke and the other side connected to the knuckle part, and configured to rotatably support the spoke.

A low suspension arm strut coupling is provided for a suspension of an off-road vehicle. The suspension comprises a lower suspension arm that is hingedly coupled between a chassis of the off-road vehicle and a spindle assembly that is coupled with a front wheel. An upper suspension arm is hingedly coupled between the chassis and the spindle assembly. A strut is coupled between the lower suspension arm and the chassis. A lower pivot couples the strut to the lower suspension, and an upper pivot couples the strut to the chassis. The upper and lower pivots provide a lower center of gravity of the off-road vehicle and a relatively smaller shock angle. The lower suspension arm is reinforced to withstand forces due to movement of the front wheel and operation of the strut in response to travel over terrain.