Hubs TRIZ Cases
- Track Widener With Internal Air Path for Durable CTIS Wheels
An internal track widener routes air through a sealed chamber and guided rotating parts to improve CTIS durability without wheel-side modifications.
- Center Hub Front Steering Layout With Lower Bearing Friction
A rear-offset hub steering shaft and split outer hubs cut bearing friction while preserving steering geometry, rolling performance, and manufacturability.
- Labyrinth Sealing Structure for Muddy Water Ingress Resistance
A bent communication path with staircase surfaces and protrusions blocks muddy water ingress while preserving easy molding and assembly.
- In-Wheel Ring Gear Coupling for Precise Bearing Axis Alignment
A protruding ring gear and matching bearing recess avoid heat-treatment deformation while aligning central axes and preventing slippage.
- Bicycle Rear Hub Face-Gear Freewheel With Low-Wear Torque Transfer
Face gears, coiled springs, and prismatic joints enable quiet freewheeling while reducing wear and preserving high torque transfer in a bicycle rear hub.
- In-Wheel Motor Hub-Rotor Spline Assembly for Backlash-Free Torque
Face splines and a clamping bolt couple the hub and rotor to remove backlash, cut drivetrain weight, and simplify wheel-hub assembly.
- Adjustable Freewheel Wheel for Dual-Mode Exercise Bicycles
A switchable power transmission wheel lets one exercise bike support both freewheel cycling and reverse-drive spinning without separate equipment.
- Freewheel Hub Adjustable Deadband for Pedal Kickback Reduction
An adjustable non-zero deadband in a freewheel hub cuts pedal kickback and chain vibration while preserving predictable engagement timing.
- Bicycle Sprocket Driver With Multi-Radius Torque Support
Multi-radius support structures let a bicycle driver robustly couple small and varied sprockets while maintaining durable torque transfer.
- Wheel Hub Disconnect Cap for Transportable Axle Decoupling
A rotating, longitudinally moving disconnect cap lets a wheel hub decouple for transport while retaining components and gearbox lubrication.
- Electric Wheel Hub Structure With Dual-Sided Axle Cooling
A through-axle hub with intake and exhaust cooling improves wheel stability and prevents motor overheating in compact electric wheel designs.
- Bicycle Hub Torque Sensing With Freewheel and Stationary Sensors
Stationary magnetic sensors and a spring-limited freewheel measure bicycle hub torque without slip rings, reducing complexity and maintenance.
- Bicycle Hub Motor Axle Sealing for Waterproof Reliability
A sealing ring and compression ring close the axle through-hole to block water ingress and keep a bicycle hub motor reliable outdoors.
- Wheel Motor Cover Fins for Sealing and Heat Dissipation
Radial fins built into the wheel motor cover improve heat dissipation while oil seals block dust and water without adding extra cooling parts.
- Bicycle Hub Gear Damping for Lubrication-Loss Vibration
Shock-absorbing gaskets and a ring damp gear engagement vibration and noise in a bicycle hub after lubrication loss, improving ride smoothness.