Shafts TRIZ Cases

Inwardly directed fins in the rotor shaft increase turbulence and surface area, reducing pressure drop while improving heat exchange.

Integral tungsten carbide components manage thermal expansion mismatch to prevent erosion and vibration in extreme service control valves.

Fibrous reinforced polyphthalamide resin cages resist moisture absorption and grease deterioration, maintaining dimensional stability under centrifugal force.

Segmented tin alloy layers level surface waviness to prevent localized fatigue damage.

A hydrostatic bearing assembly uses a magnetohydrodynamic pump to circulate liquid metal through fluid channels.

Steam treatment creates triiron tetraoxide coatings between metal powder particles, raising radial crushing strength above 150 MPa while reducing porosity.

Concentrates second radial bearing material at the radial load location to resolve wear and capacity trade-offs in drilling equipment.

Composite particle injection stabilizes concavities as oil reservoirs while reducing lubricant fragmentation during high-speed surface treatment.

Relocating oil supply grooves from the journal bearing to the center housing stabilizes the oil film and prevents thrust bearing damage.

Organic sulfonate additives form protective films to prevent hydrogen embrittlement-induced flaking in automotive electrical equipment bearings.

A sintered sliding member combines copper, tin, and boron nitride to enhance thermal stability.

Segmented retainer ring distributes load among fasteners to maintain precise fit and extend service life under wear.

High-pressure fluid supplied to a hybrid pad on the stationary journal bearing increases fluid film pressure, preventing bearing touchdown under maximum loads.

A segmented plastic roller bearing cage uses connecting elements to join individual injection-molded segments into a complete assembly.

Segmented grooved limiter bearings pump fluid to generate pressure, reducing power loss and preventing air ingestion in spindle motors.

Segmented overlapping tabs remove circumferential gaps in tolerance rings, resolving mass imbalance and eccentricity issues in disc drive actuator arms.

Heating a compressed memory shape bushing expands it into an austenitic state, eliminating press-fit stress and fatigue on the surrounding structure.

A gas pressure spring stabilizes bearing gaps against manufacturing deviations.

A replaceable axle spindle assembly uses a tapered interference seal ring to secure the spindle without permanent fasteners.

Axial grooves in bearing cage webs enable plastic edge deformation, eliminating holding lugs and tolerance constraints for reliable retention.

A sintered porous cover absorbs leaking lubricant oil from a cooling fan bearing via capillary force, preventing friction and noise caused by oil loss.

A ball bearing cage integrates a magnet to stabilize rotational motion and prevent wobbling without reducing structural strength.

A lead-free aluminum alloy sliding bearing composite with optimized tin and silicon content.

Varying axial heights in the cage pockets form dedicated lubricant flow paths, resolving poor lubrication caused by concave and convex structural features.

Hydrodynamic water film reduces spindle friction while preventing oil contamination of food products and extending equipment uptime.

Electroslag remelting of nitrogen-alloyed bearing steel eliminates structural defects and core weakness while enhancing hardness.

Interleaved bearing surfaces with varying fluid slip characteristics induce pumping action to support load.

Replaces complex EPMA analysis with Vickers hardness measurements to quantify nitrogen concentration and ensure bearing reliability.

A rotating scraper device removes abrasive solids and viscous liquids from a machining shaft, preventing damage to the adjacent bearing.

Radial extended portions align the tolerance ring before pivot shaft insertion, preventing damage and contamination in hard disk devices.

Rotational convection drives thermal transfer medium through a hollow spindle to manage bearing temperature, eliminating complex external pumping mechanisms.

A buoyant display member moves within a discharge section to visually indicate supplemental greasing, simplifying structure and preventing lubrication failures.

A slide member uses abnormally shaped intermetallic phases dispersed in a tin matrix to inhibit fatigue crack propagation.

Asymmetric groove depths create pressure gradients that eliminate low-pressure zones, preventing air bubble accumulation and oil film breakage.

Mating fins and channels create lubricant passages that reduce churning power loss while maintaining cooling effectiveness.

A slide bearing uses conical surfaces to support thrust and radial loads on a common interface.

Segmented hydrodynamic grooves raise thrust bearing angular stiffness to absorb gyro moments, suppressing metal contact wear and vibration noise.

Support rings with relief features reduce residual stresses in superhard bearing elements during brazing.

A pivot pin combines a steel joint body with a plastic ball head to secure articulation in vehicle linkages.

A bearing spacer directs lubricant to the shaft via drilled paths, creating a jet that cools rotating components.

A joint-less continuous journal bearing uses additive manufacturing to create angular sectors with distinct microstructures.

A sliding bearing arrangement uses a radial groove to collect and distribute lubricant across the contact surfaces.

Side plate grooves redirect low-temperature oil to suppress heat accumulation in downstream bearing pads.

A hydrodynamic bearing utilizes capillary pressure differences to discharge trapped air bubbles from lubricant reservoirs.

A magnetic coupling power transmission device increases rotational force using induced and rotating magnetic fields.

Convex and concave portions enable self-aligning integration, suppressing deformation of the bearing outer ring during assembly.