Gearing TRIZ Cases

A single-aperture tensioner mount improves belt tracking, cuts installation torque, and enables accurate belt tension adjustment with common tools.

Gearbox rotation sensing replaces the pinion gear for slide bar position detection, cutting part count, assembly complexity, and cost.

An elongated idler body, self-lubricating pivot, and spring-loaded head cut belt vibration and noise while reducing maintenance.

A releasable motor-to-pulley coupling lets steering column motors be replaced without removing the drive wheel or disturbing belt tension.

An annular spring chamber inside the harmonic drive simplifies assembly, saves space, and provides a defined fail-safe position.

Planar piston-tooth engagement replaces line contact to deliver high torque, zero backlash, and high ratios in a compact coaxial gear set.

A star-shaped connecting rod links multiple pistons to one crank pin, cutting transmission length and complexity while supporting high torque.

A pivotable shaft and compensational bearing let a foldable wing tip latch move smoothly under load despite misalignment and deformation.

A pedal-driven rack-and-gear lift lets wheelchair users match bed, sofa, or toilet height for safer transfers with less caregiver effort.

A ribbed dual-surface slide rail extends damping length in tight belt-drive space, cutting shaft vibration, noise, inertia, and actuating force.

A one-piece pressed tube coupling attaches to a leadscrew with lower manufacturing cost, less mass, and strong holding for steering columns.

A sensor-guided sliding sprocket shifts power-stroke timing on inclines to keep cadence steady and reduce rider fatigue.

Smooth rolling forms the push rod's polygonal guide profile to cut friction and maintain stable torque support in vehicle steering.

A motor-driven leadscrew nose tube adds precise depth motion while helping surgical tools avoid breaching site boundaries.

A tapered sleeve coupler replaces keyed shafts and belt complexity, enabling variable generator speed with lower noise, vibration, and easier maintenance.

A segmented leadscrew lowers screw resistance in transition zones while preserving rigid, precise steering column adjustment where needed.

A coupling strut and actuator synchronize joint support pivoting in a flapping wing gear to tune lift, propulsion, and flight direction.

A sealed feed side and wiped discharge side guide grease through the ball screw, cutting lubricant loss and surrounding contamination.

Symmetrical stopper side surfaces balance axial loads in a ball screw, preventing moments and stress concentration that shorten service life.

A retractable rail and piston-slot mechanism prevents piston rotation during the power stroke for precise downhole valve and packer actuation.

A grooved outer cylinder and ring slide grooves let segmented rod parts rotate and reciprocate out of phase with lower resistance and energy use.

Differential-speed concentric gears stop rotation after a set number of turns, avoiding axial threads while saving space and improving load capacity.

A trolley-mounted pulley in a slotted housing simplifies belt tension adjustment while preventing misalignment in motor-driven systems.

A coaxial strain wave gear boosts e-bike torque in a compact, low-noise drive while enabling pedal crank decoupling to prevent drag.

A rounded flexspline bottom in bulk metallic glass harmonic drives cuts stress concentrations, improves fatigue life, and keeps torque capacity.

An elastic linkage decouples the displacement command under high hydraulic force, preventing engine stall and preserving efficient axial piston control.

An asymmetrical plastic spindle nut increases thread engagement area to carry higher axial loads with longer life, lower vibration, and no lubrication.

Keyed orientation features between the spindle nut and guide tube prevent misalignment and shorten automated linear drive assembly cycles.

A spring-biased follower keeps surgical instrument drive cables under tension, preventing slack and preserving reliable jaw actuation.

A slidable motor mount with linear actuation maintains belt tension and gear backlash under vibration, reducing misalignment and wear.

A covering member sends grease into the ball screw nut circulation path, preventing shaft adhesion and allowing precise fill amounts.

Magnetic flux sensing tracks rolling element diameter changes in ball screws, enabling early wear detection before clearance and failure grow.

Interlocking hook lids and plunge openings stiffen belt damper rail halves, cutting bending vibration, noise, and wear in belt transmissions.

A geared rotatable magnet assembly keeps input torque consistent, making magnetic drill press latching and release easier within human operation.

Segmented support in the ball return tube resists vibration damage and keeps ball circulation accurate for steady steering assist.

A high-tanδ lubricant damps rolling-path vibration in ball screws, cutting noise under high load by converting mechanical energy into heat.

Matching raceway surfaces on superposed nut components create an accurate endless ball path while simplifying assembly and supporting more circuits.

A ball-discharging channel and hole let trapped balls exit ineffective thread sections, cutting assembly resistance and accessory damage.

A pressurized reservoir and slip-mounted piston automatically feed lubricant to the nut-screw interface, reducing manual servicing.

Motor-driven screw shafts and nuts replace hydraulics to extend and retract nested cylinders smoothly in horizontal or inverted use.

A stopper abuts the CVT pulley cylinder at high hydraulic pressure to prevent plastic deformation without thicker walls or extra valves.

Cam surfaces counter spring torque variation in a partially toothless gear drive, preventing backlash clogging and striking sounds.

An Oldham coupling and integrated hysteresis brake absorb axial offset in vehicle flap spindle drives, preventing stiffening and noise.

An external-pin piston and ratchet layout stabilizes hydraulic tensioner clearance as temperature rises, helping maintain chain control.

Proportionally scaled internal and external tooth profiles enable 3D meshing across the tooth trace while avoiding cutting difficulty and tooth interference.

Inner race rings and face plates support and retain bearings on a lightweight pulley, preserving low weight with reliable rotation.

By tuning ball return path length between pickup points, this case reduces entering-exiting fluctuation and improves low-speed positioning accuracy.

Position sensors and closed-loop hydraulic control keep annular pistons in phase for uniform rotation and lower spur gear tooth wear.

Axial and circumferential strain sensors on the nut separate preload strain from heat-induced strain for more accurate screw preload detection.

A pot-shaped flexible transmission element with form-fitting contact flanks boosts torque density while reducing play, tilting moments, and torque irregularities.