Shafts TRIZ Cases

Angled frame oil channels pre-rotate lubricant before it reaches the rotating bearing, cutting windage losses and heating during transfer.

Multi-axis joints and visual tracking let a spinal surgery reference frame be moved to avoid interference without re-registration.

A linked shaft cover moves toward the base during folding to close hinge gaps and block water and dust from internal components.

A copper-zinc bearing alloy uses silicide-forming additions and near-zero lead to keep machinability while resisting ethanol-oil corrosion.

Through holes and controlled weld placement let a resin bearing cage shrink axial width while preserving cage strength and avoiding interference.

Dispersed Co-Mo-Si Laves particles and Bi in a Cu-Sn sliding layer improve wear and seizure resistance under high-speed, high-load lubrication limits.

A distorted cage movable area and asymmetric pocket clearances suppress high-speed whirl in rolling bearings, reducing noise and vibration.

Repeated CIP with compact reorientation evens ceramic ball density, improving polishing efficiency and sintered compact consistency.

Undulating composite shaft sections and reinforcing belts improve bending flexibility and torsional stiffness while resisting buckling.

Heat-treated electroless nickel phosphorous coating forms a columnar microstructure that cuts residual stress and fatigue debit in turbine parts.

Tunable expansion compensating bands adjust radial and torsional stiffness to limit thermal lash, noise, and vibration in steering bearings.

A shot-peened molybdenum precursor coating forms durable solid lubricants in use, improving sliding under high speed and surface pressure.

Stiff intermediate blocks share extreme loads with deformable rolling elements, preventing hard spots and play without oversized bearings.

A multi-wall flange and low-friction composite bearing block debris and corrosion in hinge gaps, extending service life and motion performance.

A monolithic polymer hinge with a stiffness insert improves joint guidance while staying lightweight and conforming to changing limb shape.

A corrosion-resistant magnet coating and protective fluid chamber isolate blood pump rotor materials from blood to reduce corrosion, cytotoxicity, and hemolysis.

Independent main and secondary oil grooves keep an aircraft turbomachine plain bearing lubricated during axial gear movement while limiting leaks.

An integrated shaft, lock mechanism, and retaining extensions replace resonance-prone rods to cut gearbox vibration, stress, weight, and cost.

Thicker inner plate bushings and cast end plate projections help block grit ingress, protect shafts, and extend pump service intervals.

An insulating PTFE bearing layer with glass fiber and wollastonite or fly ash limits conductive paint buildup and keeps plain bearings operating reliably.

An eccentric outer-race drain keeps clear of the third contact point, enabling fluid circulation for bearing lubrication and cooling without added sliding.

Uses uncarbonized carbon fiber and lubricating additives to cut dry sliding wear and friction while protecting aluminum alloy mating surfaces.

Micro lattice and aerophilic porous layers retain air by capillary action to keep thrust disc clearance and cut bearing wear.

A thin parylene inner coating cuts breakaway and stick-slip in ball joints while preserving bearing shell pressure resistance.

Rod-like protrusions with through-bores anchor PTFE or PEEK sliding linings to metal bearing bodies under fluctuating loads at lower cost.

A bainitic steel composition enables lighter torsion-loaded shafts while preserving torsional fatigue strength and manufacturable processing.

An internal cable containment mechanism keeps a failed aircraft rotary shaft aligned, limiting flailing and secondary damage.

Inductive hardening lets a cast iron bearing integrate the raceway directly, cutting weight and material use while avoiding creep.

Thicker FRP protrusions than metal keys reduce stress concentration and deformation, enabling higher torque transmission in vehicle shafts.

Spherical plain bearing surfaces auto-compensate welding-induced misalignment in fin stabilizers, reducing jamming, damage, and noise.

Partially carbonized fibers with TG5 of 400-550°C improve resin sliding members by lowering friction and wear without damaging mating materials.

Axial oil transport grooves move lubricant from a reservoir to plain bearing surfaces, improving wind turbine bearing life without pumps.

Oblique thrust surfaces and a prestressed insert race block ball movement, raising steering column bearing stiffness and reducing free play.

An asymmetrical raceway and prestressed insert limit ring free play and axial deflection in steering column bearings.

A sealed spherical tilting pad bearing lowers contact stress and lubricant loss, extending service life under high loads and speeds.

Staggered cage protuberances cut outer-ring contact and improve grease flow, reducing friction losses in high-precision bearing units.

Spring-loaded tapered pins and grooves remove lash in an electric power steering ball screw while allowing axial travel and absorbing radial loads.

Convex and concave cage pockets cut ball contact and retain lubricant, reducing frictional heat in high-precision bearings.

Injection-molded fiber-reinforced polymer screw rotors cut finishing time, material waste, weight, and corrosion risk.

An internal-body oil circuit uses centrifugal collection and an intake channel to sustain lubrication while reducing leakage and downtime.

Layered materials with different thermal expansion let a gas foil bearing top foil reshape under heat, limiting deformation, drag, and shaft sticking.

An annular abutment lets a single cylindrical plain bushing carry radial and axial loads, cutting thrust washers, weight, and gearbox cost.

Graded CTE materials and heated fluid-filled voids let a gas bearing sleeve counter thermal warping, preserve clearance, and avoid shaft sticking.

Layered materials with different thermal expansion let a gas foil bearing sleeve change shape predictably and avoid channel blockage.

Electromagnetic radiation curing speeds insulating bearing coatings, cuts energy use, and avoids heat damage while supporting sensor integration.

Bent plate portions in the foil inserts spread load at the retaining surfaces, cutting wear while keeping the top and bump foils securely retained.

Molded plastic internal supports reinforce a thin-wall composite shaft against torque-driven buckling while preserving low weight and flexibility.

Layered materials with different thermal expansion let a gas foil bearing top foil reshape under heat, reducing deformation, drag, and wear.

A curable composite bushing fills irregular fastener-hole gaps in aircraft joints, cutting machining time while improving load transfer.

Axial deep groove ball bearings with projections and elastic damping cut friction, noise, wear, and lubricant loss in high-speed dental handpieces.