Shafts TRIZ Cases

Bonded low-friction layers in a strut bearing cut uneven torque, friction, vibration, and noise while extending suspension life.

When input power is cut, bias current is adjusted from motor feedback signals to limit bearing power use and prevent overload current.

Longitudinal grooves in the plain bearing improve air passage through the gaiter and housing while simplifying rear axle steering actuator assembly.

Wheel-bearing resistance sensing detects impending trailer wheel lock and releases brake force to reduce skidding on varying loads and roads.

A molded weak section in the inclined tube portion enables controlled axial failure for impact energy absorption without precise joining-force tuning.

A dual-lubricant ball joint uses higher-friction grease from the dust cover to offset wear-driven torque loss and maintain stable motion at lower cost.

A friction-coupled blade and serviceable lower bearing protect direct-drive lawn mower motor components from impact loads and shaft tipping.

Two roller bearings on the ball joint cut steering friction while preserving front wheel guide stiffness and ball joint life.

A tapered FRP shaft tube places more diameter and thickness at the center to keep bending and torsional rigidity while cutting weight and material.

Using NiCrAl alloy rings, this case shows how a touchdown bearing resists fluorine gas corrosion while preserving accuracy and durability.

A linear rupture weak point lets an FRP power transmission shaft fail at a set axial load, reducing weight and manufacturing cost.

A PTFE-thermoplastic bearing liner cuts armature-barrel friction in solenoids, reducing wear and extending service life.

Pressurized gas supports the bearing below lift-up speed, cutting shaft wear, energy use, and contamination in fuel cell compressors.

Fluid-filled hollow shaft sections and sensors detect interface damage and loose fasteners in a modular rail wheelset for condition-based maintenance.

Halbach ring arrays balance axial and radial turbine loads to enable passive magnetic levitation without active control power.

Strain gages and position sensors on the bearing support measure gear separation forces to calculate axle torque with less structural-load interference.

Multiple abutment supports and a leaf spring stabilize heavy windshield-mounted mirrors while preserving smooth rotary drop-off.

Tapered serrations and a tapered bolt remove axial and circumferential shaft gaps, cutting steering noise and vibration.

Brace-shaped ribs strengthen the ball joint housing boundary, enabling equal wall thickness for lighter press-formed joints with simpler manufacturing.

An embedded limiting member constrains housing shrinkage around the ball section, keeping sliding torque precise in vehicle stabilizer links.

A venting channel lets trapped air and excess grease escape during axle press-fit assembly, reducing housing cracks, noise, and vibration.

A sliding lock with elastomeric bias lets step ladder sections unlock and relock one-handed at preset angles for faster, safer adjustment.

A flexible non-metallic bearing liner absorbs thermal deformation to cut friction torque and noise while preserving rigidity.

A Cu-Ni-Fe multilayer coating blocks pinhole corrosion and preserves adhesion in friction material without thick copper plating.

An antimony-free self-lubricating coating cuts ring creep wear, debris, and noise in rolling bearings while simplifying application.

An antimony-free PTFE composite coating cuts ring creep wear, friction, noise, and toxic debris while simplifying bearing manufacture.

A raceway groove layout with two-sided shoulders stabilizes in-machine axial measurement and improves machining accuracy in multi-row bearings.

Oil-repellent coatings on the input shaft and wave bearing cut grease stirring resistance, lowering torque loss without sacrificing lubrication durability.

A resin cage deposits a protective film on bearing surfaces to prevent seizure and extend service life without costly ceramic parts.

Fluorine oil and PTFE-thickened grease helps rolling bearings resist peroxide decontamination, maintain lubricity, and limit dust.

A titanium oxide layer between copper-alloy particles limits plastic flow and stress, improving valve seat wear resistance above 1000°C.

An inclined cage pocket surface creates lubricant space at the ball contact point, cutting friction, torque, heat, and vibration.

A connecting shaft with an integrated driver mount powers multiple mechanisms from one output, cutting axle assembly size for complex vehicle transmission.

Localized thinning and pocket geometry changes cut cage centrifugal force, limiting deformation, wear, vibration, and heat at high speed.

A connecting shaft with an internal driver mounting space lets one output drive multiple mechanisms while reducing shaft size and connection complexity.

Angled grooves stabilize lubricant flow and clear wear debris in fixing-device sliding members, lowering friction and easing maintenance.

A polyimide substrate with a cured binder-resin and solid-lubricant coating cuts friction and wear while preserving adhesion and durability.

A single-stage door plate linkage improves hinge motion precision and reliability while supporting the flexible display bend during folding.

Angled and intersecting grooves stabilize lubricant flow and clear wear debris, lowering sliding resistance in fixing devices.

Radial passages between bearing housing protrusions let tools reach and secure the agitator shaft from outside, cutting mounting and service time.

Aqueous saponification of dicarboxylic acids raises lithium complex grease dropping points above 260°C while cutting energy use and excess LiOH.

Adjusting inner-to-outer contact width ratio and lubricant viscosity suppresses ball bearing hooting noise without shortening bearing life.

Roughened austenitic stainless steel enables a corrosion-resistant outer ring that avoids deep-drawing seizure and lowers bearing cost.

Microscopic wedge-shaped coating features boost hydrodynamic pressure in sliding elements, cutting wear and failure under mixed and boundary friction.

Iron-based alloy particles with molybdenum silicide replace cobalt hard particles to deliver high-temperature wear resistance and better cooling.