Hubs TRIZ Cases

An NFC tag mounted in the wheel end or hub cap enables fast, secure identification even when dirt and grease obscure conventional markings.

Press-fit forming splines let a steel hub shape engagement splines in an aluminum sprocket, cutting weight while handling high shear loads.

Polygonal recesses in the flanged inner ring remove non-loaded material to cut hub weight while improving wheel hub water drainage.

A movable retaining sleeve compensates for wheel hub width differences while preserving fork geometry, reducing friction, wear, and re-adjustment.

A variable wheel axis that overlaps or separates from the main axis expands movement range and improves stair and rough-terrain mobility.

A two-material hub casing uses an annular seal on only one contact surface to improve wheel end water sealing and reduce moisture ingress.

Projections and recesses lock a circular brake element to a wheel hub, cutting fasteners, assembly time, and cost while maintaining strength.

By placing a camera or radar in the wheel hub, this case enables lateral surroundings sensing without changing vehicle body design.

Resilient snap collar portions create prevailing torque outside the threads, reducing thread damage and simplifying wheel hub assembly.

A segmented thread-on freewheel sensing body isolates rider weight and rotation angle effects to measure pedaling force more accurately.

A movable cable protector guides the hub cable between axial and angled positions to prevent interference and simplify hub assembly.

Nested motor, gear, brake, and sensing elements inside the wheel bearing raise load capacity while keeping an omnidirectional hub drive compact.

Inclined chutes and arcuate engagement surfaces help a bicycle freehub transmit more driving force while reducing tooth interference and noise.

A nested two-stage decelerator fits partly inside the motor shaft to deliver high reduction ratios without widening the in-wheel system.

A magnetic translator and plunger-driven hub clutch decouples rear wheels at highway speeds to improve fuel economy and simplify towing.

A bayonet-mounted wheel hub adaptor lets paddles or extra wheels rotate with the tire to improve traction on sand and deep ruts.

A self-balancing ballbot replaces hand propulsion with torso-lean control, reducing arm strain while enabling compact omnidirectional mobility.

Curved non-driving ratchet tooth surfaces cut coasting noise and wear by reducing impact and sliding friction in bicycle freewheels.

A splined wheel hub accepts removable disconnect or lock modules to simplify axle service and prevent tow-induced back EMF in EVs.

Asymmetric hub and rim engagement features mechanically block wrong axle-side mounting while guiding correct wheel alignment during assembly.

Nested pinion and annular gears replace bulky portal hubs, reducing wheel-end width and weight while improving tooth load distribution.

Hammering or punching wheel spoke surfaces creates embossed or debossed textures that expand styling options while preserving wheel integrity.

Interlocking ring gear and bearing features replace heat coupling to avoid thermal deformation, improve axis alignment, and prevent slippage.

A motor-driven logic ring simplifies wheel hub gear switching, cutting part count, size, weight, and cost while keeping precise positioning.

An integral hubcap-and-clip lock secures wheels in an axle groove without tools, cutting assembly time, parts count, and failure risk.