Shafts TRIZ Cases

Multiple through-openings let old grease exit during rotation, preventing buildup, heat rise, and poor lubrication in large bearings.

Diamond on one bearing surface and silicon carbide on the other cuts cost, improves heat dissipation, and enables selective replacement.

A sealed lower bearing assembly separates axial and radial loads, improving lubrication and bearing life in sludge screw conveyors.

Curved bearing raceways and elastic outer-ring support reduce turbine vibration, noise, and premature wear in high-speed dental handpieces.

A compressed integral idler shaft clamps the gear cover to the cylinder block, improving alignment, sealing, and fluid passage under vibration.

Radial outer-ring oil holes bypass air-curtain blockage to lubricate ball-retainer contacts, cutting spindle length, weight, noise, and vibration.

Replacing silver-plated steel with a fiber-reinforced polymer cage helps rolling bearings shed or absorb hard particles and avoid costly coatings.

A mixed PFPE grease with fluororesin powder keeps sliding members operable from -40°C to 200°C while reducing rotational noise.

An inclined friction-stir weld joint keeps the tool exit outside the interface, reducing divots, stress concentration, vibration, and shaft weight.

A two-part outer ring lets the bearing absorb thermal expansion without fretting, reducing friction, wear, and grease-life loss.

An Ag intermediate layer blocks Cu diffusion into a Bi-Sb overlay, preventing Cu-Sb compounds and improving sliding member fatigue resistance.

A nickel-phosphorus-tin porous sintered layer resists sulfur-driven corrosion while preserving wear resistance in sliding members.

Angle and pressure feedback detect slew drive seizure early, then reverse motion to prevent lock-up and reduce paving machine failures.

A thinned drive-shaft section and angled spring force maintain piston-cylinder contact under load, cutting leaks and friction.

Dual barrier-gas spaces and a flexible seal block particle ingress at pressurized bearing sleeve gaps while limiting friction errors.

Fine carbonitride grains in a chromium molybdenum bearing surface improve wear resistance and toughness at lower cost in debris-prone use.

Segmented induction heating near the rolling zone keeps ring material temperature uniform during deformation, improving dimensional accuracy.

A metal oxynitride thin-film coating gives rolling bearings high electrical resistance without increasing dimensions or sacrificing load capacity.

A monolithic polymer hinge uses an insert-tuned articulating section to balance limb conformity, joint guidance, and low bulk.

An offset gate and full-length slit let a PPS or PEEK resin bush absorb metal-resin thermal mismatch and reduce backlash and creep.

A split-torque gearbox lets a VCR engine actuator handle only part of the load, cutting actuator size, parasitic losses, and reducer complexity.

Helical windings and an annular skin cut shaft weight while preserving stiffness, natural frequency, and stress distribution.

A stepped seal and inner-ring counter bore keep the seal clear of the ring and cage, preserving grease sealing, torque stability, and lubrication.

A plastic cage reinforced by a crimped metal shell withstands high rotational speeds while keeping bearing cage weight and cost low.

A gap seal splits the housing-bearing sleeve interface into two gas zones to block particle ingress at high pressure without raising friction.

A single stator-mounted sensor tracks end-face distance over rotation to detect axial run-out and verify tool clamping with less sensor complexity.

A six-roller cageless bearing uses optimized geometry and an inner lubricant reservoir to carry high radial loads in compact planetary gearboxes.

Electric discharge through the lubricant removes bearing asperities, speeding EHD film formation and reducing startup wear.

A prefabricated wedge on the mandrel improves composite shaft geometry control, reducing scrap while maintaining strong torque transfer.

A six-roller cageless bearing uses precise geometry and lubrication to carry high radial loads in compact planetary gears with less friction.

Using HTS flux pinning and magnetic levitation, this bearing assembly cuts friction and supports stable high-speed rotation without costly rail infrastructure.

Halbach ring arrays create axial and radial force curves that stabilize rotating machinery without active magnetic bearing power or feedback.

An axial pressing member restrains mobile image-forming rollers to suppress rattling, preserve straight travel, and prevent image disturbance.

A modified crescent dam reshapes the bearing fluid film to cut cross-coupled stiffness, reducing turbocharger vibration and noise.

A balanced two-level DC-link and paired amplifiers cut switch count, sensing cost, losses, and high-frequency noise in AMB control.

Radial bores and a chamfered clamping ring cut rotating mass while preserving high torque and balance on a planetary gear input.

A monolithic polymer hinge with an adjustable insert balances low weight, joint guidance, and dynamic limb conformance in orthopedic supports.

Precise axial placement of an outer-ring radial oil hole improves lubrication, prevents heat damage, and stabilizes high-speed ball bearing rotation.

Mirror-imaged end counterweights cut first-order free moments in inline engine crankshafts, improving vibration, acoustics, and low-speed torque.

A wide-flange plastic cage shifts mass into the flange and uses wing cutouts to lower peak centrifugal stress without weakening high-speed bearing stability.

Rapid cooling after quenching smooths residual stress in a surface-hardened bearing ring, limiting polishing deformation and improving roundness.

An induction-heated main roll stabilizes ring material temperature during rolling, improving dimensional accuracy and reducing cracking risk.

Radial oil passages and spherical bearings improve lubrication delivery and reduce vibration stress in cantilevered fan gear drive torque frames.

A dual-seal and boot-seal layout blocks debris in heavy-duty articulated joints while preserving smooth spherical bearing motion.

Axial side-jet lubrication targets a stagnant fluid zone to overcome windage, improving cooling and lubricant capture in high-speed bearings.

Flexible hinges and a cavity let the housing tilt with shaft deflection, keeping surfaces parallel to reduce edge loading and seizure.

Sloped low-profile outboard connectors and elastomeric races cut rotor pitch-bearing drag while preserving load capacity and pitch change.

A fiber-reinforced grommet uses flexible receiving sections and breakable supports to hold stud pins yet detach under collision loads.

A urethane-based composite surface layer bonds dispersed particles more firmly, reducing scraping and preserving charging stability in image forming rollers.

Redundant feed orifices and a common cavity keep filtered journal bearing lubrication flowing in gear pumps when one orifice clogs.