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.