Hubs TRIZ Cases

See how an eccentric wheel axle and motor-driven axle support members enable simple switching b

See how an eccentric wheel axle with motor-driven locking enables automatic switching between e

See how a segmented wheel assembly with split adapters, hubs, and wheels attaches tool-free to

Multi-step flanges and a surrounding washer lock the shaft to the rotating body, cutting retainer cost and reducing corrosion-related separation.

A separate annular backbone member forms the inner bearing race to protect the mount portion and distribute load in a low-profile hubless caster.

A larger second spoke flange with offset disc screw holes supports large brake rotors while improving rigidity, brake feel, and weight control.

Preloaded toothed disc assemblies and spaced hub and rotor bearings improve bicycle hub alignment, assembly stability, and freewheel reliability.

A preload element between the screw head and wheel hub simplifies wheel bearing assembly while adding centering, lowering parts count, weight, and cost.

An axial-opening bearing spacer nests sensors and electronics in a compact hub while preserving durability and one-way clutch function.

A motor-driven cam and forked linkage move a spline coupling to switch wheel hubs between 2WD and 4WD with precise engagement control.

Alternating magnet spacing concentrates magnetic flux and eddy currents to raise aircraft wheel braking torque without added mass or bulk.

A laminated strip and elastic cable supports let this non-pneumatic wheel spread load, absorb shocks, and keep traction on lunar and Martian soil.

A plastic cellular spring preloads freewheel clutch rings more evenly, cutting hub noise, wear, and preload device complexity.

Segmented coupling sections interrupt torque with less axial movement, shrinking wheel hub transmission packaging and easing disengagement.

Hard ratchet rings overlapping the hub bearings cut deflection and wear while keeping the bicycle drive assembly light and serviceable.

Hard separate ratchet rings overlapping the bearings cut wear and deflection while improving hub engagement and serviceability on rough terrain.

A cam-locked torque support assembly keeps the hollow shaft aligned during wheel replacement, reducing brake stress and improving durability.

A clearance-angle freewheel coupling reduces pedal kickback during suspension compression while fitting existing hubs without extra components.

Alternating inboard and outboard connecting portions keep a vented commercial brake rotor rigid while improving airflow and cooling.

Separate axial damping elements and a radial damping body improve vehicle damper inlay performance while simplifying assembly and installation.

Opposed radial bolt placement across the stator coil end reduces case deformation, improves sealing, and suppresses oil leakage.

A spaced motor module and mounting plate reduce heat conduction, improve coolant-jacket cooling, and simplify drive axle maintenance.

A spoke-and-hub wheel shifts between rolling and leg-like motion, helping mobile robots move fast on flat ground and traverse stairs.

Controllable suction cups and stretchable diaphragms let crawling wheels grip and release non-ferromagnetic or non-metallic surfaces in any orientation.

Inclined lugs and sacrificial pilots help a U-shaped brake rotor cut stress risers, maintain concentric alignment, and protect aluminum hubs.

Sensors on wheel fasteners track temperature and vibration, sending wireless alerts that reduce manual checks and help prevent wheel detachment.

An external rotary air chamber and seal layout enables tire inflation control without interfering with hub bearing operation or seal life.

Segmented retainers and elastomer bumpers stabilize aircraft wheel heat shields, limiting wear, distortion, and wheel contact.

Needle rollers on radial and axial raceways shrink wheel support bearings while preserving radial and axial load capacity.

By moving motors and deceleration assemblies outside the wheel in the radial direction, this case cuts wheel-unit axial size without losing power transmission.

Black oxide on rolling bodies and raceways works with tailored lubricant properties to cut wheel hub bearing friction while preventing corrosion.

Separate axle cavities with a spindle seal, breather, and drainage passage to prevent leakage, manage pressure, and improve bearing lubrication.

A radially displaced lubricant compartment and circumferential passages let wheel-hub gears self-lubricate without pumps, saving space and weight.

Outwardly extended pole ring slots drain water and fine dirt, block coarse debris, and preserve accurate ABS sensor signals.

A spring-driven toothed hub structure uses precise positioning to prevent offset, uneven stress, and rough idling engagement.

A perpendicular motor and worm drive fit inside a hollow wheel body, reducing hub space demand while simplifying driving wheel assembly.

Retainer bumpers and flange-guided segments stabilize a floating wheel heat shield to limit wear and deflection in aircraft brake assemblies.

A central air duct layout and positive locking protect the tire pressure line during axle transport while preserving correct hub cap orientation.

A dual-contact slider stabilizes hub friction during ratchet engagement and disengagement, reducing tooth damage and wear.

A spindle airflow opening vents heated air from the wheel hub cavity, relieving pressure that can damage seals and shorten hub life.

A separate transmitting body and hard sprocket support improve hub durability, torque transfer, and manufacturing flexibility.

Adjustable bearing spacing and a loosenable cover let one go-kart front hub tune axle stiffness for track, weather, and driver needs.

Pre-transferring wheel speed control information between ECUs avoids signal gaps during switching and prevents braking control errors.

A notch-based adjusting switch lets one hub change between fixed-gear, single-speed, and coaster brake modes while enabling a smaller sprocket for higher speed.

Multiple seal zones and a slinger extension block dust and moisture in wheel bearings while preserving lubrication and limiting drag torque.

A central-aperture hub cap protects the air guiding system in transport while enabling reversible installation and fixed rotational positioning.

Ball bearing pellets and oil inside a sealed front hub rebalance sprint car tires during acceleration, braking, and cornering.

A flexible rim and spoke-band assembly changes spoke length over obstacles to maintain alignment, traction, and stable wheel elevation.

A bevel gear clutch replaces hub pawls to cut reverse-rotation noise, maintain one-way drive, and simplify bicycle hub repair.

A toothed anti-detachment collar locks the tire bead after a burst, preserving hub rotation and helping maintain vehicle direction.

A sliding bushing and fluid actuation switch the wheel hub between planetary reduction and 1:1 drive to improve traction, torque, and fuel economy.

A detachable rim sensor uses accelerometer and gyroscope data to track wheel inclination in real time and warn drivers of misalignment.

A tapered nut end engages a conical hole to raise friction, resist loosening under vibration, and maintain clamping force with easier disassembly.

Targeted flange reinforcement stiffens high-load wheel hub areas to limit bending, vibration, and noise while preserving contact stability.

Adjustable blades use airflow to spin the aircraft wheel before touchdown, matching ground speed to reduce skidding, tire wear, and landing instability.

A bifurcated wheel-unit coupling uses double-shear pins to spread steering loads, reduce wear, and extend component life.

Direct grease conduits lubricate inner and outer wheelend bearings without disassembly, improving lubrication control and assembly ease.

Controllable gas springs between inner and outer rims cut rolling resistance, assist braking, and avoid tire puncture downtime.

Swinging detents and dual-force elastic members stabilize hub assembly, smooth one-way ratcheting, and improve transmission efficiency.

A switchable hub uses engaging blocks, a drive screw, and a clutch brake to convert between freewheel and fixed-gear riding modes.

A hub-mounted counter and wireless module let trailers track mileage independently across tow vehicles for maintenance and purchase decisions.

A thin-barrel cast wheel hub uses tuned diameter ratios, ribs, and a reservoir channel to cut weight while preserving strength and lubrication.

A stacked planar coil-and-magnet hub replaces bulky concentric layouts to boost in-wheel power generation, cut weight, and extend vehicle endurance.

Internal air channels in a rotary union hub inflate or deflate tires without manual interaction or damage-prone external hoses.

A hub carrier and large-diameter protrusion block foreign matter from the wheel sensor, removing a separate deflector and simplifying assembly.

Undulating splined hub locking keeps drive and brake parts on the frame, cutting bicycle wheel change time and setup disruption.

Matching splined locking faces let bicycle wheels couple and decouple quickly without disturbing drive or brake components.

By integrating resolver and wheel sensors inside the wheel bearing, this case cuts in-wheel drive volume and simplifies assembly.

A severed spindle, welded bushing, and adapter assembly restore heavy vehicle hubs on site while cutting repair time and transport needs.

An annular seal contacts only one hub casing material to block moisture at the mixed-material interface while preserving lightweight wheel end design.

An in-hub brake with motor-driven wedge actuation enables controlled automatic braking while reducing weather exposure, misalignment, and fall risk.