Shafts TRIZ Cases

Inductive hardening creates a compressive surface layer in bearing rings to block hydrogen diffusion and resist white etching cracks.

A sealed finned bearing cover plate cools vibratory pile driver bearings through conduction and airflow, reducing heat buildup and failure risk.

A sliding cap and nonstick coating let the bearing rotate freely at low centrifugal force, cutting torsional resistance and wear.

Vacuum degassing, continuous casting, and annealing produce main shaft bearing steel with high purity and uniformity at lower cost and energy use.

A profiled cooling passage in the bearing housing improves heat transfer, limiting overheating, power loss, and bearing wear.

Solid lubricants dispersed in a titanium aluminide matrix improve room-temperature ductility while lowering friction and wear in high-temperature parts.

Recessed leakage paths in a bearing damper ring tune oil cavity stiffness to better damp rotor-housing vibration and radial loads.

Oil grooves, opening portions, and an outer oil stop wall retain lubricant in mixed lubrication regions to cut sliding load and wear.

Controlled recess volume in a resin overlay helps sliding members retain lubricating oil and resist seizure during frequent engine stop-start cycles.

Unequal inner ring shoulder diameters let a deep groove ball bearing carry higher one-way axial loads while retaining bidirectional support and low friction.

Reconfigurable rolling members and frame sections move bulky loads horizontally with less complexity, lower cost, and broader use.

A fluid film on semispherical bearing surfaces spreads heavy wind turbine loads, cuts wear, and handles thrust without separate pads.

A co-moulded metal ring strengthens a food-grade bearing casing while filled pin holes prevent surface marks that could trap bacteria.

A through-hole enlarged section and curled end secure the steering column to the housing cover without surface processing or press-fitting.

A compact dual-shaft hinge uses a central support between rotating arms to prevent flexible display sagging in narrow folding regions.

Angled slit segments and a support wedge improve load transfer from composite tubes to metal parts while reducing joint stress concentrations.

A PVD, CVD, or PECVD hard layer paired with a PTFE sliding lining replaces hard chrome to cut environmental harm while preserving wear resistance.

Adjustable rotor bearing clearance in a wind turbine nacelle reduces plain bearing pad wear and supports automated wear compensation.

Discontinuous PTFE fiber segments in a woven thermoplastic-resin matrix improve bearing machinability while preserving low friction and wear resistance.

A chemically bonded multilayer polyurethane coating protects bearing components from maritime corrosion without blasting or loose abrasive particles.

Simultaneous spindle and bearing vibration with magnetic levitation and preload control improves machining accuracy while preventing bearing damage.

A nested radial-axial bearing layout uses shared flooded lubrication to cut wind turbine bearing space, parts, and maintenance.

Spring-loaded indexing lets a walk-behind mower handle lock at multiple heights and fold near the deck for vertical storage.

A tuned top-foil aspect ratio lets a thrust foil bearing keep required load capacity with fewer leaves, reducing cost and improving reliability.

Controlling tin particle shape and dispersion in an aluminum overlay reduces stress concentration and improves sliding member fatigue resistance.

A closed, isolated damper space keeps fluid sealed inside rotary bearings, preventing contamination and extending life in high-speed atomizers.

A smooth tapered and transition bearing profile maintains continuous fluid flow to raise turbocharger shaft speed while reducing noise and vibration.

A plastic hollow driveshaft overmolded by a more elastic gear improves joint stability, cuts noise, and avoids brittle fracture.

Pressurized compensation tanks and bleed channels rebalance bushing loads in rotary pumps, cutting abrasion, jamming, and transient stress.

A gear plate under the slewing bearing gear captures lubricant in vertical supports, preventing leakage, wear, and corrosion.

Alternating ribs and a rotating cylinder retain and circulate lubricating oil in vertically mounted vacuum pumps, cutting footprint and leakage.

A full-width flank face creates a radial gap that blocks wave-shaped bearing ring contact under load, reducing creep in clearance-fit assemblies.

Pre-assembled coaxial gear modules improve concentricity, simplify reducer assembly, and cut noise, vibration, and machining cost.

Protective regions and sacrificial anodes shield diamond bearing elements from drilling-fluid corrosion, extending thrust-bearing life.

Ceramic-reinforced aluminum plain bearings improve wear resistance and cut friction without high-temperature coatings on light-alloy substrates.

A resin overlay with controlled valley void volume stores lubricating oil and sustains the oil film, improving seizure resistance in stop-start engines.

A dual ball-and-socket preload mechanism replaces springs in tilting pad bearings, preserving smooth pad tilt and consistent preload over time.

Hard particles embedded in corrosion-resistant metal aggregates protect sliding members from acid-driven crevice corrosion while preserving wear resistance.

Pocket recesses in gas foil thrust bearing top foils build pressure and cut radial leakage, raising load capacity while reducing power loss.

A wollastonite and barium sulfate filled sliding layer lowers bearing friction and wear while keeping the coated structure practical to make.

A two-stage powder pressing approach preloads thick insert regions to equalize green compact density and prevent sintering deformation.

Controlled black portions and Fe segregation improve silicon nitride workability and wear resistance while preserving strength and toughness.

High-feed milling forms a structured bearing ring sealing face that lowers seal friction and wear while retaining lubricant and blocking dirt.

A compressible curable composite bushing fills fastener-hole eccentricity gaps in aircraft joints, cutting machining, assembly time, and part damage.

A polyacetal blend with silicone oil, fine precipitated calcium carbonate, and fatty acid improves wear while limiting exudation, delamination, and mold contamination.

An internal retainer groove and arch-bound top foil improve foil bearing pre-load control while simplifying assembly and reducing part count.

An expandable catheter-based pump enables percutaneous insertion while delivering full cardiac flow with lower stress and hemolysis.

A pivot cup, sleeve bearing, and silicone dampener reduce stagnant blood zones and seal the bearing chamber to limit thrombus formation.

Sn and Cr grain refinement gives this high-tensile brass better cold formability and thermal relaxation resistance under temperature changes.

Contact seals and oil circulation let a vertical vacuum pump bearing reduce installation space while preventing lubricating oil leakage.