Shafts TRIZ Cases

Integrating fluid containment structures into molded plastic components reduces machining costs and improves shock resistance in disc drive systems.

Segmented bearing grooves transport particles away from rotating wash arms, preventing mechanical clogging and ensuring operational reliability.

Alkanolamine grease prevents hydrogen-induced peeling in iron-based rolling bearings under high-speed conditions.

Circumferential hub protrusions support a sliding seal interface, preventing contaminant ingress while maintaining seal stability during relative motion.

Offsetting the pinion pivot axis reduces opposing reaction moments, eliminating noise and friction torque variations during left and right turns.

A non-rotating shaft with a locally modified smooth peripheral improves osculation with bearing inner rings.

An intermediate silver layer suppresses additive element diffusion from the bismuth overlay, preserving conformability under high temperatures.

Segmented aluminum sectors form a tubular rotating shaft to reduce material waste and weight while maintaining structural strength.

Porous solid lubricant plugs expand during heat treatment to bond firmly within brass bearing apertures.

Modifying inner and outer race radii ratios relative to ball diameter extends flexible bearing service life by five times in wave gear devices.

Austenitic iron matrix alloy with controlled sulfur forms sulfides providing solid lubricant properties at elevated temperatures.

Optimizing the grain boundary phase area ratio in silicon nitride sintered bodies improves surface processing efficiency for fan motor bearings.

A journal bearing retainer integrates a backup support structure between slots to manage foil tab contact pressure during rotation.

Controlled iron, calcium, and magnesium levels in a silicon nitride sintered body reduce characteristic dispersion while improving grinding workability.

Encasing metal reinforcement in composite material reduces thermal and mechanical stresses at the fastening zone without increasing blade weight.

Liquid lubricated bearings enable higher rotor mass and power output in hermetically sealed turbo expanders by replacing gas lubrication.

Optimized polyimide, MoS2, and graphite proportions balance sliding properties against wear resistance in engine bearings.

Segmented lock and spring rings eliminate high-torque threaded engagement, reducing vibration failure risk while increasing shear strength.

A rotating member design incorporates a holding member with an internal space to protect identification information from wear during rotation.

Composite fabric integrates PTFE lubricating yarns with glass structural fibres, reducing end-of-life wear rates and extending maintenance intervals.

A copper alloy sliding material with dispersed inorganic compound particles enhances seizure resistance.

An inner sleeve with radially projecting rim cylinders supports an integral press-fit device that secures the joint in a bearing eye.

A rotating bearing wiper lifts a scraper element via a guide rail to separate fresh lubricant from used grease, preventing contamination in large bearings.

A hydrostatic jacking system pressurizes lubricant to separate wind turbine bearing surfaces during low-speed operation.

Removing the stub shaft flange and using a knock-out plug prevents axial load transmission to the housing, reducing uncontained failure risks.

Laser welding deposits Sn-Al-Cu alloy coatings directly onto metal substrates, eliminating toxic pretreatments and casting complexity.

A bearing closure element diverts electrical current from the outer ring to the inner ring via a conducting layer.

Optimized maraging steel composition achieves high tensile strength through controlled carbide precipitation in martensite.

A copper-tin bronze alloy incorporates iron and aluminum silicides to boost hardness.

A modular motor assembly structure uses a tapered combination key to transmit rotating power through a standard interface.

Asymmetric herringbone grooves with width ratios between 65:35 and 75:25 enhance inclination-resistant rigidity while reducing bearing loss torque.

Distinctive axial grooves on bearing inner rings accept an alignment gauge to position components, preventing misalignment that causes insufficient lubrication.

Reception housings in the one-piece frustoconical bearing cage accept a removable positioning tool to secure the assembly during rolling body installation.

Relief surfaces on the outer member shoulder prevent contact ellipse overriding and edge load generation, improving durability.

Fine tin powder creates a uniform sintered bearing surface, preventing large openings that cause defective lubrication and dynamic pressure issues.

A unitary bearing bush merges radial and axial support to eliminate separate securing elements, reducing assembly complexity and part count.

A two-part bearing cage creates free areas between spaced pockets to solve limited lubricant space and improve service life.

Swaging hollow tubes reduces outer diameter to enhance torsion rigidity, solving bidirectional durability issues without increasing layout size.

Capillary pressure differences in radial and thrust gaps guide trapped air out of the clearance portion, preventing oil film rupture during assembly.

A Pb-free copper alloy sliding material uses bonded hard particles to maintain seizure resistance during stationary operation.

A liquid-tight iron oxide layer protects roller-stressed components against chemical attacks.

Radial elastic deformation of the cylindrical support holds the rotation shaft, suppressing displacement and vibration for stable image quality.

Matching bearing cage density to lubricant creates neutral buoyancy, preventing lubricant migration and wear under high acceleration forces.

Embedded iron-nickel-manganese silicides in a copper-zinc matrix resolve the trade-off between wear resistance and toughness.

A CuCr1Zr alloy bearing shell conducts heat from the rotating shaft interface to reduce mechanical loads.

Embedded metal support tabs limit excessive expansion of a plastic cage during high-speed operation, preventing wear and failure.

An oilless sliding member uses an independent intervening member to distribute radial or axial loads and reduce friction.

A sliding member uses a porous sintered layer with a nickel-phosphorus binder to join iron alloy particles to a steel back metal substrate.

Optimized tin and silicon levels in the aluminum alloy balance wear resistance against fatigue cracking under mixed friction conditions.

Deformable lip seals block muddy water and dust from entering the bearing gap, eliminating abnormal noise during operation.