Hubs TRIZ Cases

Undulating splined hub couplings let bicycle wheels swap quickly without disturbing fixed brake and drive components.

A sealed planetary wheel end uses needle bearings, hardened sleeves, and integrated seals to support axle loads while reducing friction and wear.

A sleeve between the spindle plug and rotary union limits hose and stator rotation to prevent kinking, disengagement, and tire inflation failure.

A shiftable power transmission wheel lets one exercise bike switch between freewheel cycling and bidirectional spinning without separate equipment.

A hub-integrated gear reduction unit replaces integral spider pins with a supported case structure to prevent pin fracture and simplify axle assembly.

Axial hub passageways and conductive materials dissipate heat from bearings and the tire bond in small load wheels, reducing premature failure.

Indented multi-directional discharge surfaces clear foreign matter while preserving wheel rigidity and improving vehicle NVH.

A two-part trailer hub lets the bearing assembly be bolted on and removed without axle disassembly, cutting service time and axle damage risk.

Electrical conductors pass through radial space between the hub shaft and bearing, preserving quick release use and hub strength.

Wireless sensor nodes in wheel hubs handle moving parts and harsh conditions while enabling remote diagnostics and predictive maintenance.

Wheel-end relative motion drives a hub-integrated pump that cuts leak-prone air lines, reduces wear, and simplifies tire inflation.

A planar coupling surface and preloaded locking bodies let a bicycle freewheel hub transmit high torque in a compact, lower-cost design.

A sleeve-based brake mount references the hub instead of the frame to align the caliper accurately, cutting setup time, wear, and brake noise.

A projection-slot ratchet ring structure avoids hub shell thread wear while improving torsion load capacity and axial force resistance.

Machined recessed intermediate sections cut wheel-rim contact area, improving centering while reducing corrosion and easing rim removal.

A sleeve linking the spindle plug and rotary union stator limits hose rotation, preventing twist and kinking in tire inflation axles.

Multi-row staggered teeth shorten quick-release lever travel while keeping strong engagement and allowing safer handle alignment on a bicycle fork.

Dynamically shifting the wheel axis with motor-controlled connecting members cuts unsprung weight while improving handling and shock absorption.

Threaded rim engagement, a resilient bumper, and a compressed seal keep a tubeless bicycle valve secure, quiet, and easy to service.

A bayonet-style bolt ring lets technicians replace the disc rotor from the hub outboard side, cutting disassembly time, lifting weight, and risk.

A bearing between detachable inner and outer wheel hubs cuts friction, raises towing rotation speed, and reduces wheel wear.

Stepped bolt openings and integrated centering elements help wheel spacer discs accommodate shaft nuts, compensate tolerances, and maintain balanced mounting.

A nested hub guard uses risers, a base plate, and access openings to protect fragile hub caps while allowing inspection and maintenance.

A stationary multi-part seal and shared oil path cut rotary-seal friction, leakage risk, cost, and noise in an in-wheel drive.

An elastomer pretensioning element between the screw head and wheel hub replaces extra parts, cutting weight, cost, and corrosion protection.

Inclined hub fasteners enlarge the bolt circle diameter to raise rim and disc torsional stiffness and suppress low-frequency brake noise.