Shafts TRIZ Cases

Four circular arcs reshape a radial plain bearing surface to transmit axial forces while improving load capacity and durability.

Removable mandrel tooling and tapered lobe geometry create thin-wall composite drive shafts without fasteners, reducing weight and assembly time.

Irregular pressure plate recesses that avoid groove overlap suppress bearing resonance and noise without weakening press fit or fluid circulation.

Control-current changes and rotor movement setpoints are used to estimate magnetic bearing sensor sensitivity without external displacement gauges.

Angled composite element groups strengthen a hollow drive shaft against torque, buckling, and vibration while preserving axial and bending flexibility.

A split idler places bearings across hot and cooler zones so rollers keep rotating reliably while bearing life is preserved in web machines.

Partial-ellipsoidal superhard bearing elements maintain contact under rotor-stator tilt, reducing uneven loading in drilling bearings.

Pressurized compensation tanks and bleed channels rebalance bushing loads in rotary pumps to cut abrasion, prevent jamming, and extend service life.

Fine compound grains and martensite blocks in a carbonitrided diffusion layer raise bearing wear resistance without higher steel cost or lower toughness.

A curved pivot, liner, and biasing member press each pad toward the shaft while fluid film lubrication limits friction and axial vibration.

Selective laser hardening on bearing non-functional faces improves wear resistance and friction while reducing warping, creep, and rework.

A flexible drive connection separates the motor and gear unit to save steering column space while maintaining torque transfer and crash energy absorption.

Irregular pad spacing and mixed pad groups let a fluid film bearing support rotor hub loads with lower complexity, material use, and downtime.

A tapered press-fit region prevents galling at the communication hole edge, stabilizing axial clearance and shaft rigidity in spindle motors.

A sliding pin and spherical bearing replace a failure-prone screw in the tail rotor pitch link, cutting wear and simplifying maintenance.

An inclined discharge pipe throttles lubricant outflow from a wind turbine bearing housing to prevent starvation, leakage, and splashing losses.

Extrudable bearing stages balance axial loads across a compact thrust bearing, reducing wear and tolerating misalignment without tight tolerances.

A pre-tensioned flexible bearing holder replaces a spring to maintain axial preload, cutting separator parts and assembly complexity.

An integrated magnetic drive and coil housing shrinks percutaneous blood pumps while improving heat dissipation and blood flow stability.

Rolling elements between the housing and tilting pads cut friction and bearing losses at high speed while supporting oil-free operation.

Lubrication and modulus enhancers in a polymer bearing cage cut friction, heat, wear, and deformation during high-speed operation.

Powder-metallurgy ASP 2060 bearing rings improve hot hardness, corrosion resistance, and wear in vibrating aeronautical butterfly valves.

Microalloying with Nb, Mo, and V refines bearing steel and drives nano-carbide precipitation to extend contact fatigue life without special heat treatment.

Layered carbon, aramid, and glass fiber shaft layup improves rotorcraft drive strength, heat resistance, and failure tolerance.

An actuator, engaging member, and brace assembly move bushings accurately in housing openings, reducing manual removal and installation effort.

Notched overmolding keeps bearing ring alignment surfaces accessible, improving assembly precision and reducing rotor-stator tolerances.

Spiral end-plate grooves use pumped fluid to build hydrodynamic pressure, separating gear faces at startup and reducing wear.

A recessed manifold and larger central nozzle redirect cool oil between pads to limit hot oil carryover, lowering bearing temperature and power loss.

Discontinuous bore cavities store and release grease to limit wear and seizing in hardened guide members under heavy oscillating loads.

A segmented hinged blade structure applies stable lateral corrective force while adapting to forward bending and reducing skin abrasion.

By combining magnetic support, an air-cushion foil bearing, and stator cooling, this case cuts heat load, lubricant demand, and parasitic losses.

A hybrid magnetic and foil bearing supports rotor rotation with magnetic lift and an air cushion to cut lubrication, cooling, and friction.

Using high-strength carbon fiber only in the helical load-bearing layer cuts CFRP propeller shaft cost while preserving torsion and bending strength.

A low-lead Cu-Zn bearing alloy uses Al, Sn, and iron silicides to resist ethanol-oil corrosion while maintaining strength, ductility, and wear.

A bubble discharge path removes air from lubricating oil in a journal bearing, preserving wedge-driven oil film pressure and stable shaft rotation.

Alternating distance sensors around a grooved shaft cancel radial fluctuation errors to improve magnetic bearing speed measurement and control reliability.

A surface layer matching particle and binder components helps stop particle detachment while maintaining stable charging and image quality.

By controlling fine roughness in a crosslinked fluorine resin layer, this case improves oil repellency, lowers torque, and avoids polishing.

Wave-shaped plastic radial bearings accommodate metal-plastic thermal expansion mismatch while reducing deformation and friction in rotating use.

An asymmetric fiber layup shifts more reinforcement to the compressive stress path, boosting one-way torque capacity while balancing failure risk.

Controlled Martens hardness and creep in a resin sliding layer keep static and dynamic friction close as shock absorber wear progresses.

Threaded end members clamp a hollow shaft during heating, enabling diffusion joining with stronger joints, fewer jigs, and better mass-production control.

A DLC coating with interface-concentrated graphene nanoplatelets cuts friction and wear under high contact pressure and temperature.

High-temperature solution nitriding with intermediate tempering refines grains, avoids chromium nitrides, and extends rolling bearing life.

Partial Bi removal lets the Ni coating bite into the lining, cutting cleaning time while maintaining strong layer adhesion.

Cold-forming a stepped hinge bolt into a U-shaped support creates a durable two-shear joint without welding or high-pressure forming.

Curved retaining channels and elastic plastic legs lock the ball head without tools, avoiding corrosion and bulky metal securement.

A telescopic rod and pull rod move the pin shaft through its axial hole, enabling easier assembly while preventing piston rod wear and deformation.

Unidirectional solidification keeps Bi phases away from the joining interface, improving copper slide material bonding strength and load capacity.

A snap-joint two-part bearing cage prevents umbrella-effect bar bending at high speed while keeping assembly cost-effective and stable.