Hubs TRIZ Cases

A bicycle hub kit uses interchangeable end nuts to accommodate different spindle types without adding weight.

A pneumatic brake disc bedding system uses air pressure to frictionally engage pads against rotating discs.

Radially oriented connecting pieces with circumferential recesses resolve the weight versus stiffness trade-off in wheel hub centering devices.

Coining dies squeeze the hub hole peripheral portion to form fixing grooves without cutting excess material.

Contoured connector design shifts peak tensile stress away from critical transition regions, extending wheel hub service life under cyclic loading.

Segmented connecting parts with recesses reduce wheel hub weight without creating critical stress zones, eliminating machining complexity.

Steel pins reinforce an aluminum cassette driver body, resolving the weight versus strength trade-off in freewheel hubs.

Bilateral spoke connections handle compressive forces, preventing rim buckling while maintaining geometric stability and extending service life.

A bicycle hub seat uses a transverse notch to guide spoke insertion without unthreading.

Extruded tubular body with deformed wheel flange eliminates weld fatigue while lowering production costs.

A wheel support bearing inner race features a plastically deformed hub axle portion crimped into a counterbore to secure proof strength.

Cushioning material between joint members suppresses collision sound while maintaining structural strength and shape stability.

An eccentric spoke-receiving opening allows lateral forces to distribute across a spherical interface, reducing stress on bicycle wheel spokes.

Segmented hub flanges with alternating closed and open spoke feedthroughs maintain structural stability while reducing weight.

A braking system places a planetary gearbox inside twin tire rims to multiply rotational speed before the brake unit engages.

A bicycle hub axle adapter uses retaining members to secure wheel attachment within hollow axles.

A wheel hub drive connects the braking rotating part to the motor rotor via an exterior shaft.

An intermediate member separates retaining and lock attachment faces, securing bearing axial position without direct contact.

A bicycle wheel fastening assembly uses a rotating handle to secure the wheel axle.

Segmenting the hub shell with distinct asymmetric interfaces resolves the trade-off between structural stability and ease of removal during wheel repair.

Axle clamp isolates fork flexure from wheel bearing preload variations, ensuring reliable control and extending operational life.

Adapter ring spline interface secures axle shaft and hub alignment, preventing rotational misalignment.

A collared member press-fitted to a wheel hub spigot joint part locks the wheel annular protruding part radially outward.

A bicycle torque transmission assembly uses radial support arms and cutouts to form a press fit connection between adapter and driving body components.

Offset bore axes in wheel hub and wheel reduce alternating bending stress on fasteners, extending lifespan during cornering.

Angled spoke plates extend ground-contact time to reduce vibration and stress concentration.

A wedge-shaped gap member fills spaces between free rollers to maintain a smooth circular profile.

Segmented annular brake pad with empty slots dissipates heat while increasing brake radius on combined wheel spokes.

A caliper arm assembly presses hemispherical friction material against a rotating brake sphere rotor to generate stopping force.

Forging the hub body eliminates extensive machining, reducing manufacturing cost while maintaining high strength.

Segmented struts and recesses lower unsprung weight and notch stress without increasing vehicle height.

Connection channels prevent accidental spoke exit during detensioning, ensuring reliable hub retention.

Elastomeric flexible cover prevents debris entry in axle hub joints while accommodating rotational movement through dynamic sealing.

A wheel knuckle displacement control member promotes linear forward movement of the upper suspension member during impact.

A bicycle hub assembly uses extended axial spline driving surfaces to transmit pedaling force through the hub body structure.

Multiple thread starts reduce installation time and cross-threading risk for the axle assembly.

A tapered compression axle assembly secures bicycle dropouts via a cam-operated quick release mechanism.

Material tapers around the screw hole enable controlled loosening, preventing wheel intrusion into the vehicle interior.

A wheel cap assembly uses a retainer ring with angled flanges to create a secure radial lock against the wheel surface.

Projections on a hub shell flange engage holes in the wheel unit to resolve unstable rotational transmission between components.

Integral flexing fingers engage axle notches to secure wheels, eliminating manual force and tool requirements during mounting.

Rotating the sleeve relative to the spindle corrects alignment parameters without disassembly, reducing tire wear from axle flexing.

Flexible blade springs in the lock member adapt to unsmooth rotor flanges and threaded hubs, resisting loosening under vibration.

An axle assembly hub integrates fluid conduits and seals to distribute pressurized air efficiently.

A manual release tab displaces a retaining element to remove the wheel assembly, eliminating tool dependency and reducing maintenance damage.

Replacing the double-toothed connecting ring with a washer and screw-pin connection reduces micro-movements that cause premature wear of roller bearings.

An oblique wheel hub contact surface transmits braking torque alongside the abutment, resolving non-positive locking failures under high loads.

Distinct osculation ratios for dual rolling element rows lower energy consumption while maintaining mechanical reliability under combined loads.

Axial sensor target mounting on wheel bearing flanges enables third-generation designs.

A bicycle frame drop-out uses a rail groove and adjustment bolt to move the wheel mounting plate along the seat stay for precise positioning.