Hubs TRIZ Cases

A compact rotary feedthrough assembly uses radially opposing annular seal chambers to route fluid lines between stationary and rotatable parts.

An oscillating support pivots drive wheels vertically to maintain narrow gauge width.

Spring pins and a retaining ring constrain torsional rotation and axial movement of the disc brake rotor, preventing detachment during vehicle operation.

Vertical motor offset in an integrated portal hub increases ground clearance while reducing drivetrain weight and improving acceleration.

Internal adjustment of the head member within a hollow axle eliminates axial length expansion while maintaining secure wheel engagement.

Tapered splines on the hub unit and joint transmit torque while reducing pressing load during assembly.

Segmented connecting arms and a conical pressing jacket resolve assembly complexity while enhancing braking reliability.

An interference fit seal blocks muddy water ingress through fastening bolt gaps, preserving bearing longevity.

Dowel holes align the wheel mount with the planet carrier while preload bolts maintain roller bearing force to reduce deflection.

A bicycle hub design secures inner bearings using a fastening element that creates a press fit on the axle cross section.

An asymmetric T-shaped wheel trim adapter secures to lug nuts via a retention ledge, resolving vibration loosening while maintaining tool-free installation.

Angled spindle sleeve and anti-rotation washer adjust camber, toe, and thrust angles to reduce uneven tire wear and maintenance costs.

A radial air transmission structure delivers pressurized gas through a rotating axle assembly via a transitional seal interface.

Apparatus prevents seal crushing by maintaining precise clearance between heavy torque tubes and wheel frame seals.

A wheel motor with an eccentric hub eliminates heavy spokes to reduce moving weight while a dynamic seal protects bearings from environmental damage.

An extractor collet clamps the spinning ring while a driver engages the bolt head, preventing wheel damage during stuck fastener removal.

Axle countershaft with dual clutches manages rotation to resolve trade-offs between torque efficiency and device complexity.

A motorized wheel assembly uses an integral plug and socket system to enable tool-free removal of the hub motor.

Nested rim rings with an axial end cap create a cavity that reduces hub weight without sacrificing structural integrity.

Separating the sprocket and adapter resolves the trade-off between force transmission surface area and radial centering precision.

A protective cap with peripheral drainage openings secures into a wheel bearing blind hole to manage internal fluid.

A hub cap vent plug uses a screen and fluid channels to release pressurized fluid from the hub cap.

A transparent oil hub cap uses a reflective indicating ring to display lubricant levels through light reflection.

Torque limiting mechanism prevents excessive tightening force on bicycle skewers, enabling lightweight construction with lower-cost materials.

Segmented splined teeth with adjustable tensioning means resolve corrosion-induced attachment forces, enabling easy brake disc removal from the hub.

A wheel balancing weight clip features a medial hump that grips the flange at smooth contact points.

Asymmetric initial contact angles resolve preload control difficulties in double row bearings with different pitch circle diameters.

A removable wheel assembly mounts to a vehicle spindle and transfers to a bicycle hub.

A spindle nut assembly uses a locking ring and machine screws to secure truck wheel hubs without rotating the inner nut.

Pivoting articulation members replace stiff annular rings to reduce frictional resistance and lower manufacturing costs for omni-directional traction wheels.

Segmenting the wheel into a replaceable outer tread and inner disk eliminates puncture risks while maintaining shock absorption through elastic deformation.

Segmented retainer prevents pinion nut loosening, reducing axial play and wear.

Optical sensors replace mechanical gears to measure wheel speed and tire pressure, resolving low-speed detection limits.

Lug nut rotation detectors on the wheel hub identify loosening bolts and trigger real-time warnings to prevent accidents.

A wheel design uses flexible bands as spokes to allow the rim to unfold over uneven ground while maintaining structural integrity.

A bicycle hub axle uses a spring-like retaining member to secure the wheel shaft against axial displacement.