Gearing TRIZ Cases

Fillet-shaped joints and relief features strengthen ball screw engaging portions against repeated impact, enabling higher rotation speed.

A cam driver and radial sliders form ball return concaves in long, small-diameter ball screw nuts while limiting die damage and axial deformation.

A battery-powered screed head uses a translatable link and eccentric cam to press the driver trigger, improving mobility without remote power.

Ball screw nut support and bushings reduce actuator rod deflection in forklift steering, improving efficiency, durability, and wheel turning range.

A three-housing EPS layout uses an intermediate housing and O-rings to maintain sealing while easing assembly and reducing mounting surface misalignment.

Variable brake-belt pretension lets round balers match wrapping tension to different materials, preventing tangling, damage, and poor separation.

Protruding pulley portions engage outer-ring recesses to block axial shift, resist radial deformation, and maintain stable belt tension.

Clutches, ball screws, and a brake let one motor handle horizontal travel and height adjustment while keeping imaging patient beds stable.

A roller-linked on-axis actuator rotates a bracket while avoiding off-axis loads that cause friction, binding, weight, and complexity.

An oil-tight ball screw layout keeps lubrication and cooling enclosed, boosting molding-machine drive dynamics without external soiling.

Spherical cap bearing segments and axially driven tooth pins raise coaxial gear torque capacity while reducing wear and assembly complexity.

Shortened key teeth, elongated adjacent segments, and electromagnetic cam-roller actuation keep pulley engagement continuous during ratio changes.

Transition segments are positioned by electromotive actuation before load transfer, reducing ratcheting, slippage, and wear in clutchless shifting.

Nested hollow and coaxial shifter shafts cut transmission space while preserving full gear shifting with smaller electric actuation.

A two-piece compensating drive nut decouples the lead screw from bearing misalignment to reduce binding, friction, and wear.

A planetary rotary lock redirects torque to unlock a linear actuator under high load while preventing unintended extension.

Grooves moved from multiple rollers to the spindle cut tolerance burden while preserving low-friction, accurate steer-by-wire actuation.

A retained support member and stepped screw hole let belt tension be adjusted precisely without torque shifting the retaining member.

Separate screws and springs adjust each flexible finger in a lead screw nut, improving engagement control, friction tuning, and wear compensation.

A two-shell ball recirculation insert removes the sleeve and discrete fasteners, cutting assembly cost while maintaining reliable ball guidance.

A double coaxial screw-nut pair uses elastic clearance control to block linear movement beyond a set load while reducing wear and torque.

Dual torque-sensitive drive and driven clutches cut actuator force and energy use while maintaining uniform belt clamp and ratio changes.

A tangential ball return path in the spindle nut smooths load relief, cutting wear, noise, and vibration without complex return parts.

Switchable spring assistance raises belt force during start and full load, then lowers contact pressure to cut slip and fuel use.

Flange-guided chain seating keeps pitch radius stable while cutting noise, vibration, and sprocket-chain wear during engagement.

A metal skeleton with a molded precision overlay delivers durable, high-torque sprocket teeth without costly metal finishing.

An open-ended slot and rotating detent let elastic belts be changed without tools while holding predefined tension and avoiding overstretching.

A toothed belt intermediary and needle bearing reduce harmonic drive NVH while maintaining torque capacity, positional accuracy, and compact packaging.

Projection-recess coupling replaces retaining clips in a ball nut return tube, simplifying assembly, lowering cost, and preventing disengagement.

A dual-diameter detection gear extends rotation so developer cartridges can identify new status and specification more reliably.

A two-part spindle nut with a spherical or cylindrical joint absorbs transverse forces to prevent jamming, cut friction, and extend drive life.

Preload springs and alignment elements eliminate backlash in a surgical instrument interface, improving torque transfer and position stability.

Transverse chain vibration sensing enables continuous tension monitoring in people conveyors, reducing wear and preventing incorrect tension operation.

A removable belt guide holds belt position during tight-space tensioner installation, easing spring-loaded assembly and reducing misalignment.

A piston-separated oil and gas chamber lets an electric cylinder retain lubrication, dissipate screw-drive heat, and handle volume changes.

A spring-loaded contact member keeps constant pressure on the steered shaft to absorb tolerance and wear gaps, suppressing steering backlash.

Helical ball-bearing races and hydrostatic lubrication cut actuator friction and torque while enabling dual output shafts.

Multiple coil springs with stiffer end portions equalize compression in a ball screw, extending spring life and nut stroke.

A center-mounted unitary knife drive synchronizes split knife sections to cut effectively while reducing header weight, vibration, and crop-flow interference.

Circumferentially adjustable stops limit control rod travel while reducing stop loads and supporting in-flight rotor blade vibration tuning.

Solid lubricant retained in chain plates forms a tribofilm on the guide shoe, cutting sliding resistance and wear over time.

A pressurized reservoir and screw-mounted piston keep the nut-screw interface lubricated during operation, reducing manual servicing.

Axial rotation restriction and metal-powder resin cut molding shrinkage variation, preserving pulley tooth accuracy and belt meshing.

An integrated cylinder head rib restrains cam chain lift upstream of sprocket meshing, preventing mismeshing even if the tensioner fails.

A three-convex cam creates three tooth misalignment motions to cut pitch error, lower unit load, and stabilize harmonic reducer transmission.

Sensor feedback tracks annular piston position to time serration engagement, improving rotary uniformity and reducing tooth tip wear.

An over-molded plastic shell adds anti-rotation plus axial and lateral nut control, cutting ball-screw actuator complexity and cost.

Fixed screw rods and threaded sleeves replace splines and bearings in a lifting column, simplifying assembly while extending travel.

A damping carrier and helical torsion spring keep timing belt tension stable while cutting spring entanglement and assembly labor.

A nut-mounted sensor placed between adjacent circulation circuits detects hidden screw shaft groove damage, even under short axial strokes.