Shafts TRIZ Cases

Cold forging forms deep holes and spline grooves in an integrated steering shaft, cutting parts, process time, weight, and cost.

A clear topcoat over chromate-treated zinc plating suppresses interference colors while preserving corrosion resistance and metallic gloss.

A monolithic polymer hinge with a stiffness insert balances lightweight joint support with limb conformity and natural flexion-extension motion.

Controlled nitrogen partial pressure during hardening suppresses surface ferrite, preserving corrosion resistance and HRC 57+ hardness.

A closed fluid-filled damper space isolates lubricant, absorbs vibration, and extends rotary atomizer bearing life without product contamination.

3D-printed permeable bearing and seal bodies shape pressurized gas flow into a precise annular film with lower manufacturing variability.

Controlled oxide inclusions and shot peening keep bearing surfaces above 750 HV while improving indentation resistance in contaminated conditions.

A four-contact ball raceway layout cuts sliding and wear while evenly supporting radial and axial loads with simpler assembly.

Controlled local heating and quenching harden only one bearing ring surface, adding compressive residual stress to suppress hoop-stress cracking.

An asymmetric composite layup adds reinforcement on the compressive stress path to raise torque capacity and reduce shaft weight.

Region-specific fiber orientation in a thrust bearing sliding layer reduces cracking, shear, and interface peeling during stopping.

Inductance changes from a shaft target let one proximity sensor detect position, speed, and direction accurately, even at low speed or standstill.

Limiting sliding speed and contact pressure lets PCD radial bearings run against diamond reactive materials with lower wear and failure.

A plastic shaft overmolded by a more elastic gear and enlarged connection area resists load peaks, fatigue, noise, and corrosion.

Diagonal retaining projections and segmented columns let conical rollers be inserted and removed easily while preserving cage strength and precision.

An integrated magnetic drive shrinks blood pump size while preserving torque and limiting heat buildup that can raise hemolysis and thrombosis risk.

A housing protrusion and tuned back-foil stiffness limit shaft displacement under external loads while preserving tip clearance in radial foil bearings.

Controlled convex height and spacing in the surface layer prevent local discharge and reduce image unevenness in electrophotography.

Controlling urea-thickener particles to 2.0 μm or less helps grease retain base oil, prevent seizure, and extend bearing life at DN 100,000+.

An indexed clasped handle assembly lets walk-behind mower users set comfortable handle heights and fold the mower for vertical storage.

A PPS blend with PTFE and UHMWPE improves self-lubrication, toughness, and wear resistance against stainless steel or soft metal.

An integral elastic collar in the bearing shell compensates wear, maintains freedom from play, and protects the ball joint from overload.

High-pressure centering chambers and discharge grooves keep a hydraulic film around the striking piston to prevent friction, seizing, and damage.

A split toggle bearing lets the connection pin shift for bush replacement without tie bar interference, cutting injection molding maintenance time.

A two-stage powder pressing approach redistributes powder to thicker insert regions, limiting density dispersion and sintering deformation.

A two-stage vacuum carburizing and carbo-nitriding cycle hardens martensitic stainless steel while preserving corrosion resistance and fatigue life.

An integrated axial bearing stop in the housing removes bolt joints, cuts lubricant leakage risk, and improves axial load distribution.

A secondary fluid bath wets a rotating collar to block oil mist escape from the main oil bath without extraction systems or wear-prone knife seals.

A circumferential coil magnetically deforms the bearing body onto the carrier body, simplifying plain bearing assembly while strengthening the joint.

A silicone-dampened pivot, bearing cup, and sleeve bearing seal bearing gaps to limit stagnant blood and reduce thrombus formation.

A continuous polycrystalline diamond surface with ultra-smooth finish reduces edge contact, wear, and graphitization against reactive metal bearings.

A bonded self-lubricating liner and PVD-coated inner member cut vibration wear, hold diametral clearance, and meet REACH limits.

Controlled convex height and spacing on the charging roll surface stabilize discharge and reduce image unevenness in image forming apparatuses.

Axially projecting webs replace snap-fit cage features to improve bearing alignment, retention, and molding accuracy at lower cost.

Elastomeric annular dampers in thin-section scanner bearings absorb bending moments to cut vibration and noise while extending fatigue life.

Axial ball pockets replace slide-formed snap features, improving injection-molded cage accuracy, alignment, noise, and rotational resistance.

A curved laminate bearing end absorbs misalignment while a non-conductive low-friction layer protects durability under surface treatments and particles.

A segmented ball joint with angled cable channels and chamfered casings enables 60° surgical shaft articulation while resisting unwanted rotation.

Adjustable bearing clearance in a wind turbine nacelle compensates sliding bearing wear, extending rotor bearing life and stable operation.

A multilayer PVD, CVD, or PECVD coating replaces hard chrome in spherical bearings while preserving PTFE sliding and wear resistance.

Modular axial and radial slide bearing segments let wind turbine rotors handle high loads while avoiding full bearing disassembly.

Controlled convex height and spacing on the charging roll surface improve discharge uniformity and reduce image unevenness and scumming.

Rolling elements create a pump effect in a bearing lubricant loop circuit, improving recirculation and preventing dead-zone stagnation.

An IMU-guided flywheel counteracts lift-line spin in hoisted litters, reducing manual intervention during helicopter retrieval.

An interference-fit collar constrains outer race expansion in a ball joint, preventing ball and stem pull-out under axial loads.

A trapped oil film linked to a lubricant channel lets one turbocharger plain bearing handle radial and axial loads with softer damping.