Gearing TRIZ Cases

A movable roller axis preloads a flattened push rod to deliver play-free steering guidance with lower friction and simpler assembly.

A single oil supply passage near the nut offset point lubricates all rolling paths in an inclined ball screw while avoiding complex greasing holes.

An eccentric threaded drive switches between two reduction stages to balance linear speed, actuating force, and compact transmission size.

A strain wave gear replaces chains and expansion joints in a tilt tray sorter, cutting component count and maintenance while keeping tray rotation controlled.

A nut-side cylindrical circulation path softens return-path bends, improving ball flow, assembly workability, and compact ball screw rotation.

Direct engine mounting through the spring case redistributes belt loads, reducing pivot-tube bending, misalignment, and bracket flex.

By replacing multi-part tray drives with a strain wave gear, this case cuts maintenance and operating cost while keeping tray tilting controlled.

A backup belt path lets pulley transmission continue after belt malfunction, improving fail-safe motion with lower complexity and maintenance.

Tooth-direction trimming and nitrided flexspline surfaces cut wear debris in harmonic gears, protecting bearings and extending service life.

An elastic linkage decouples displacement control under high hydraulic load, reducing feedback force and helping prevent engine stalling.

A pivot-mounted drive motor simplifies drafting-unit belt tension adjustment, avoiding frequency checks and keeping power transmission consistent.

Single-twisted para-aramid cords help a helical timing belt carry high torque with lower noise, kink resistance, and simpler production.

A hinged motor and adjustment pin vary belt tension to cut wear, slipping, and noise while keeping vehicle transmission stable.

A threaded rod-and-tube adjuster levels mobile foundations after installation, compensating for uneven or sloping subsoil.

Variable-radius pulleys balance car and counterweight loads without rebuilding counterweights, cutting power loss and adjustment time.

A resin or rubber seal closes the gap at the ball return path to stop grease leakage and block foreign matter without extra nut machining.

Housing supports keep the steering belt engaged with the motor pulley, preventing jump-off and preserving ball screw position accuracy.

A rotary plate and bridging bars synchronize multiple locks to equalize gasket pressure and prevent gas leakage in folded airtight covers.

A one-tooth spline offset lets an actuator reset overtravel stops without disassembly, improving rigging accuracy and reducing impact damage.

Integrated supports on segmented pulley sections control endless-member slack and bending, enabling clutchless ratio changes under load.

A hydraulic tension arm moves the crusher belt drum to a safe maintenance position while improving alignment, damping vibration, and reducing manual risk.

Separating flexibility and strength into a deformable gear band and rigid torque transmitter cuts gearbox profile while preserving high torque.

A cycloidal disk, cam track, and follower convert rotary input into axial reciprocation, cutting pump size, weight, and assembly complexity.

Axial offsets in ball screw recirculation sections create clearance at channel mouths, reducing ball chipping, wear, and service-life loss.

Threaded nuts on dual journal threads replace spacer disks, enabling fast, precise sprocket alignment while resisting vibration loosening.

A variable rack-and-gear furniture drive adjusts contact force angles and uses position sensing to improve movement flexibility and control.

Adjustable shaft eccentricity lets a jaw crusher switch between concentric and eccentric motion to cut start-up power and handle jams.

An adjustable eccentric coupling lets a jaw crusher start under load with lower power demand, then switch stroke for efficient crushing.

A common support member holds both shafts to keep belt tension stable, removing the tensioner and reducing mechanism maintenance.

Dual nut members, springs, and a cam switching mechanism keep the feed screw aligned, improving plunger positioning accuracy in infusion pumps.

Interchangeable vented plugs tune chain tensioner damping across engine types without changing the cylinder-plunger structure.

Non-punctual tooth-groove anti-rotation engagement spreads tangential and radial loads in an intertwined-band linear actuator.

Preload springs and alignment disks remove backlash at the surgical instrument interface, enabling precise torque transfer and predictable motion.

A hinged two-arm tensioner uses elastic bias and damping to control belt vibration in starter-generator drives while simplifying assembly.

A biased nut and housing create friction braking in a ball screw, replacing bulky air compressors and holding motion without power.

A pantograph and straight-line linkage removes one Cartesian motion component to create sinusoidal output without sliding parts or electronics.

An electrically actuated pulley and planetary gearset replace hydrostatic drive to cut maintenance, overheating, and cost in outdoor power equipment.

A nested flex spline differential combines dual-motor redundancy and high gear reduction in one compact transmission, cutting weight and gear count.

Two independent belts maintain power transfer after belt failure, while opposing helical toothing cuts noise in vehicle drive systems.

A non-symmetrical second damper creates a virtual stop in a timing belt tensioner, limiting arm travel without a one-way clutch.

Acceleration sensing in the gravitational direction replaces visual chain slack checks, improving measurement accuracy and operator consistency.

Integrated retainer formations keep pivot pads laterally stable, helping compact radially moving teeth transmissions handle high torque efficiently.

A spiral-tooth gear sensor reads ball nut rotation directly to determine steering absolute position without added gear complexity.

An axially spaced retaining member keeps an alternator pulley from coming off the shaft while limiting frictional heat during free spinning.

A coiled metal stop pin in the ball nut replaces costly machined end stops while reducing tilting, friction, and torque drag.

Counterweighted throwing force gears on dual rotatable discs smooth inertia- and gravity-driven rotation while maintaining high torque.

A magnetic indicator reads hydraulic tensioner pressure through the chamber wall, avoiding oil leaks, contamination, and indicator wear.

Coprime pulley diameters and dual sensor assemblies let a belt drive determine wheel toe angle without rotation history.

A two-part radially movable seal cuts friction, wear, and noise in telescopic spindle drives while preserving sealing in the retracted position.