Shafts TRIZ Cases

Recessed landing bearing surfaces absorb base oil via porous coatings, preventing leakage and reducing wear in high-speed magnetic bearings.

Optimized chamfer geometry prevents burr formation and inner race abrasion during assembly, extending bearing service life.

Curved sealing flange maintains axial load on bearing seal, preventing contamination entry despite ring tilting.

A motor mating ring with a through hole directs lubricating oil to the bearing.

Internal shaft chambers store lubricant to provide immediate bearing flow at startup, eliminating wear from pump delivery delays.

Optimizing additive weight ratios and using ultrasonic dispersion balances mechanical strength with low friction coefficients in compressor coatings.

A sintered bearing uses an inner layer with hardness increasing elements and an outer layer without them to create a concentration gradient at the interface.

A radial flow gas turbine generator uses a single air-cooled bearing between the rotor and compressor wheel.

Supply holes in the floating disk convey lubricating oil directly, reducing throughput through the decoupling gap and eliminating radial supply grooves.

A press forming method creates flange portions on M-type holders using a convex portion to apply outward pressure.

Amorphous carbon film forms a low-friction coating through tribochemical reaction under Hertzian contact stress, eliminating the need for additional lubricants.

Single electromagnet provides radial and axial support, eliminating separate actuators.

Radial cage protrusions engage ring recesses to block displacement and reduce noise.

Steam treatment forms a ferrosoferric oxide membrane on sintered metal bearings to seal internal pores.

Releasable axial stop engages inside part to resolve mounting complexity and manufacturing constraints.

PTFE fiber reinforced acrylate coatings prevent cracking and fluid absorption while extending bearing lifespan beyond 400,000 cycles.

Preliminary chamfering guides metal flow during cold forging, preventing burr formation and improving shape accuracy of the final component.

Roughening the bearing housing surface increases friction to boost damping force, preventing oil inertia degradation in gas turbine engines.

An elastic ring interposed between the pin and bushing distributes loads evenly, reducing wear rates and extending lifespan under high mechanical stress.

Spirally arranged protruding ribs guide lubricating oil to the bearing, resolving insufficient supply and reduced strength caused by conventional rib designs.

Localized trapezoidal knurling prevents creep between synthetic resin pulleys and metal outer rings while maintaining processing precision.

Segmented shafts and mantles allow targeted part replacement, reducing maintenance downtime and remanufacturing costs.

Segmented main bearing assembly distributes radial and axial loads across dedicated plain bearings, reducing wear while isolating tilting moments.

Radial spreader ring shapes fiber composite flanges on a stationary hollow shaft core, preventing folds and ensuring uniform wall thickness.

A high-tensile brass alloy adjusts alpha and beta phases to enhance wear resistance.

Shear bolts release the bearing from the stator under critical load, allowing the rotor to orbit within a bumper that limits vibration transmission.

Angled secondary passages in a journal bearing introduce oil to reduce vibrations and prevent metal-to-metal contact during eccentric rotation.

Concave roller support surfaces on bearing cage pillars reduce roller drop variation, enabling cost-effective manufacturing with consistent retention.

Stacked raceway configuration eliminates separate assemblies, reducing volume while maintaining axial stiffness.

An elastic contactor maintains electric conduction between rotating and stationary bearing units, eliminating excess harness length and bulky covers.

A polyamide resin cage reinforced with glass or carbon fibers retains rolling elements in high-speed bearings.

Notched protrusions on the sleeve equalize internal and external pressures, preventing lubricant leakage and air bubble infiltration during assembly.

Galvanic deposition of a copper-based alloy layer with controlled crystal orientation resolves fretting corrosion and seizing in multi-layer plain bearings.

Ball joint contact portions with indentation areas exert biasing force to damp impacts and minimize noise generation in articulated fastening systems.

A single PEEK bush replaces multi-layer bearings to withstand mechanical loads, while housing cooling prevents overheating during high-speed operation.

Axially displacing stop devices against counterstops sets rotational limits without fixed radial pins.

A combo metal mesh foil bearing integrates radial and thrust functions into a single damper body with protrusions.

Elongated oil-introducing holes in a semi-floating bearing deliver targeted lubrication to suppress self-excited oscillations at high speeds.

Segmented press-fitting joint and outer collar distribute torque evenly, preventing stress concentration and peeling damage in FRP drive shafts.

A pulse width modulation driver controls electromagnet excitation current to stabilize rotor levitation.

A jacketed magnetic bearing uses nickel electroless plating on a steel annular support to prevent corrosion while maintaining magnetic flux conduction.

Eccentric circumferential lines in roller bearing track elements optimize shoulder positioning for consistent axial force transfer, extending bearing lifespan.

A tilting pad journal bearing uses a nozzle groove to direct oil flow toward the center of sliding surfaces.

Active electromagnetic forces compensate for insufficient gas pressure at low speeds, preventing rotor eccentricity and airflow leakage.

Segmented retainer pockets retain grease under high-speed rotation, preventing leakage and mass unbalance in turbo molecular pumps.

Indium concentrates at bismuth phase boundaries in a lead-free copper matrix, preventing seizure under high loads while maintaining structural integrity.

Asymmetric conical fluid dynamic bearings adjust stiffness ratios to minimize disk oscillation during mechanical shocks.

Coaxial punch and expanding mandrel reduce and expand hollow body sections simultaneously, eliminating separate tool setups and reducing machine usage time.

A polyurethane elastomer bearing material combines polyethylene wax and paraffin wax to reduce dynamic friction.

A frusto-conical multipurpose bearing provides axial and radial support for a hard disk drive spindle shaft.