Shafts TRIZ Cases

Flared laser-drilled capillaries restrict pressure within the bore to prevent load failure during shaft eccentricity.

Integrates an unclamping piston within the annular space between the spindle and draw bar, reducing moment loads and maintaining machining stability.

A rotation support device for a pinion shaft uses specific angular contact ball bearing parameters to reduce dynamic torque.

A rolling bearing device transmits radial and axial forces through concentric rings with distinct roller rows.

Irregular dynamic pressure grooves in fluid bearings disrupt periodic acoustic patterns, eliminating specific frequency noise during high-speed rotation.

A spindle motor bearing bush features a radial flange to boost structural rigidity.

A suspension bearing lower cup integrates a cambered damper pad with an annular recess to absorb vibrations and distribute loads.

Three strategically positioned drain openings prevent oil flooding and leakage during tilting, maintaining continuous machine availability.

Steel-carrier composites with Cu-Ni-Sn sliding layers overcome insufficient heat resistance in thermally stressed engine compartments.

A journal bearing uses a connecting member with an oil hole to supply lubrication oil directly to tilting pads.

Sintered metal sleeves with 4% to 15% oil permeability restore thrust bearing pressure balance without axial grooves, eliminating communication path costs.

Composite resin retainers with localized thickness variations resist centrifugal deformation during high-speed rotation, preventing heat generation.

An integrated top foil with a curved portion forms a wedge-like gap, eliminating separate bump foils and preventing reverse rotation damage.

Oblique claws on a bearing ring dig into the receptacle wall to prevent dislodgement from vibration, eliminating separate securing hardware.

Segmented tubular sleeve and bearing components maintain fixed alignment, eliminating time lost to recentering replacement spindles.

Dynamic signal switching between high and low resolution modes reduces vibration and noise while preventing chattering in magnetic levitation vacuum pumps.

A crankshaft balance weight uses a variable radius design to maintain rotational stability while preventing piston interference.

A multi-plate servo block couples a hub plate and ball bearing plate to the motor.

Radial overmolding joins segmented outer partial rings, eliminating precise alignment requirements and allowing fully automated assembly of the ball bearing.

Merging radial load support into the thrust sliding bearing structure reduces mounting space constraints while lowering manufacturing costs.

A hydrodynamic bearing device circulates lubricant through a dedicated passage to maintain film stability and prevent leakage.

Continuous surface patterns extend from rim to rim to prevent air accumulation and maintain load capacity at high rotational speeds.

A ball joint integrates a pivot shaft into the holder during casting to couple a third mechanical element near the primary pivot center.

A convertible plain bearing switches between hydrostatic and hydrodynamic lubrication modes based on angular velocity to support varying loads.

An Sn-based overlay deposits directly onto a copper alloy substrate without an intermediate diffusion barrier layer.

Positioning and sliding projections absorb differential thermal expansion between the shaft and housing, preventing shaft inclination and tooth skipping.

Carbon nanostructures in a polymer matrix strengthen a sliding bearing, maintaining conformability while improving wear resistance.

A tolerance ring with varied bump stiffness equalizes radial preload across a circumferential gap.

Integrated hub and bearing bush reduce construction complexity while maintaining structural stiffness against external shocks.

Friction stir welding joins hollow light metal and iron group transmission shafts, stabilizing axial dimensional accuracy without flash generation.

A common inner ring unifies roller and ball bearing assemblies into one structure, reducing engine weight and assembly time while maintaining load distribution.

Bismuth vanadate particles strengthen a polyimide sliding bearing, resolving wear resistance trade-offs in high-load truck applications.

Segmented thrust washer grooves pump lubricant inward to form thin hydrodynamic films.

Optimized hill-to-groove ratios in radial dynamic pressure bearings increase load capacity while maintaining low processing costs for portable devices.