Shafts TRIZ Cases

A magnetic bearing controller compensates position sensor input-output characteristics using temperature drift correlation data.

Rounding the edges of the through-flow opening in the partition wall prevents turbulence and pressure pulsations that cause high-frequency noise.

Segmented pore structure balances oil retention and permeability, preventing squealing noise in intermittent electric motor applications.

A thrust sliding bearing uses a segmented lower casing with recessed portions to manage thermal deformation and reduce deflection under vehicle body loads.

Replacing mechanical contacts with magnetic fields reduces friction and wear while extending maintenance intervals for marine propulsion systems.

A magnetic bearing system measures fan rotational speed using displacement sensors to eliminate dedicated rotation detectors.

Electromagnets dynamically adjust axial rotor position to eliminate mechanical bearing complexity and leakage losses.

A magnetic bearing controller modulates electromagnet current at specific rotation timings to reduce shaft vibration levels.

Curved auxiliary bearing profiles distribute contact pressure across sleeve and bushing surfaces, reducing edge stresses during rotor misalignment.

A multi-ribbed keyless coupling assembly transmits torque between concentric shafting members in sealless pump systems.

A telescoping bracket system enables multi-axis positioning of building components during installation.

A three-shear bearing system connects the boom foot to the revolving platform using three bolt elements and central bearing plates.

Radial slots in segmented laminations interrupt circular current paths to increase axial bandwidth and reduce phase lag.

Clamping diodes limit load voltage spikes while offset catcher rails stabilize switching transitions across magnetic bearing windings.

Crankshaft balancing bodies align reciprocating inertial forces to cancel vibrations without countershafts.

A hybrid bearing cage uses a metal stiffener to secure plastic links, preventing stress concentrations at high speeds.

Non-uniform chevron grooves in a fluid dynamic bearing provide predetermined spindle-motor stiffness during steady-state operation and shock events.

A sliding bearing uses a stamped bushing with an omega profile to retain a thermoplastic strip.

A multi-layer plain bearing applies a copper-based alloy anti-fretting layer to reduce fretting corrosion damage while maintaining mechanical strength.

Carburizing and nitriding treatments enhance surface hardness and toughness in novel high-alloy bearing steel compositions.

Martensitic stainless steel bearing components use a fine grain hardened case to resist spallation while maintaining core fracture toughness.

Injection molding creates a mechanically engaged fixing portion on a stabilizer link ball seat, resolving pull-out strength and bearing function trade-offs.

A skin layer on the foamed silicone rubber roll suppresses compression set and fatigue resistance issues while maintaining low hardness.

Quadratic pockets with convex side contours guide rolling elements while rounded corners trap lubricant, reducing friction in high-speed spindle bearings.

A thrust bearing uses arcuate corrugated foils with depressions to reduce stiffness and direct axial loads.

A carbonitriding method controls undecomposed ammonia concentration and gas partial pressures to optimize nitrogen permeation into steel workpieces.

An integrally formed polyurethane cover seals a conical bearing housing interface via elastic deformation, preventing liquid stagnation and bacterial growth.

A hydrodynamic bearing rotary device uses specific gap configurations to reduce rotation friction torque.

A journal bearing retainer uses an integral backup support structure to urge the trailing edge tab into increased contact with the support.

A bearing device uses a hollow pipe cage support sliding on an oil film to reduce friction.

A foil bearing uses a split key configuration to provide anti-rotation support for the gas bearing assembly.

Segmented locking ring detents distribute unlocking forces symmetrically, reducing frictional wear and preventing accidental mirror head movement.

Rectangular relief portions in the cage pockets extend axially to improve lubricant distribution, reducing friction and skew while extending bearing life.

Removing redundant support sections reduces axial dimension and weight, facilitating easier installation in existing buildings.

Raised wedges on mold segments prevent protruding separating marks that impair ball movement in plastic bearing rings.

A vehicle suspension joint integrates a sensor element directly into its injection-molded housing structure.

Low viscosity lubricant in the liner reduces wear rates, extending service life versus prior art.

A compliant radial bearing race with a reduced-diameter portion allows elastic displacement of the outer race relative to the housing.

Composite grease combines mineral oil and poly-alpha-olefin to reduce outgas emissions in high-density hard disk drives.

Differing screw pitch and groove length in a motor hollow shaft suppresses deformation and oil intrusion, enabling compact hard disk apparatus designs.

Additive manufacturing joins side rings and pocket elements via beams, reducing weight by 30-70% while maintaining structural strength.

Tailored carburization depths disperse concentrated loads across varying sectional thicknesses, preventing weak points and ensuring uniform torsional strength.

A hydrodynamic bearing device uses geometrically varied communicating paths to actively guide adhesive flow into designated inflow portions.

Local quality resolves the trade-off between nitriding and hardening, enhancing fatigue strength and wear resistance.

Segmented shaft components improve shape accuracy and rigidity, enabling thinner disk drive motors.

Articulated counterweights vibrate within grooves to absorb engine vibrations, reducing cylinder block fatigue and noise emissions.

Axial stiffening insert and slender groove in lower bearing member prevent separation and noise under vibration loads.