Toothed Gearings TRIZ Cases

A split holder and spring preload guide the worm-shaft bearing toward the worm wheel to improve meshing accuracy and reduce backlash.

A nested harmonic drive and dual planetary gear layout delivers at least 600:1 reduction while keeping the actuator compact.

A dual-path one-way clutch drivetrain enables regenerative deceleration, smoother gear shifts, and backward pushing without wheel lock.

Pre-mounting the worm and bearings, then inserting the worm with radial offset, cuts reducer assembly cost and helps avoid bearing damage.

Axial flange bolting and a thinner flexure section let the ring gear deflect under load while reducing gearbox connection diameter and weight.

A dual-sleeve clutch integrated with a planetary gearset shortens heavy-duty EV drivelines and wheelbase while preserving power handling.

Continuous rotary supports with attitude maintenance speed article transfer while avoiding lift interference, rattling, and complex control.

Closely spaced pivot joints let lateral cutter bars fold behind outer discs, expanding mowing width while keeping transport width legal.

A shifter sensor and switch let the controller automate clutch actuation while preserving driver override and reducing stop-and-go burden.

Injection-molded support ribs link the hub and ring gear to spread shock loads, improve torque transfer, and reduce steering gear wear.

Four cycloid discs with opposite eccentric directions distribute load, improve rigidity, and maintain dynamic balance without extra compensation.

An integrated dual-motor drive lets a lighting head pivot horizontally and vertically without enlarging the main unit or adding inspection complexity.

Nonlinear channels guide drive teeth across gear sections, enabling ratio changes without torque interruption or load decoupling.

A sterile adapter uses curved, locating, and latch features to align teleoperated surgical instruments while protecting actuator sterility.

A spring-loaded gear rack and electric lock move the transmission control member to parking when power fails, without a bulky actuator.

A clutch-enabled wave gear drive switches between gear ratios to match changing load and dynamic conditions without fixed-ratio limits.

A geared adapter with a flexible band simplifies loading unit attachment, articulation, and actuation to cut replacement time in surgical staplers.

Using stepped planet rollers and symmetric rolling contact, this drive achieves high speed ratios, torque multiplication, low noise, and zero backlash.

A nested double-shaft layout with slip rings and infrared heating cuts oven heat loss, saves space, and supports complex mould rotation.

A moving part and spaced locking parts block unintended gear lever rotation into stow, preserving cabin space without sacrificing shift safety.

Beveled radial flanks and a deformable annular retainer improve coupling alignment, reduce backlash, and simplify transmission assembly.

Pressure-actuated oil switching supplies clutch hydraulic fluid during slipping and limits excess lubrication to cut oil loss and fuel penalty.

One-way clutches and a push-button reversing mechanism keep shaft output selectable while using back-and-forth handle rotation efficiently.

A shared-pinion compound planetary gear set replaces bulky bevel gears to shrink vehicle differentials while improving power delivery and durability.

Hot-forged aluminum plates joined by laser welding cut planetary gear carrier weight by 60% while preserving load support and wear resistance.

A ring drive with lock control and bias-spring return lets SMA tubes deliver continuous rotary torque without constant heating.

A pivotable planet shaft lets planetary gears self-align under load, reducing misalignment, wear, carrier mass, and assembly friction.

Nested epicyclic gears and a universal selector enable compact full-load shifting across many ratios with lower clutch losses and noise.

A shaped release groove smooths wave-generator pressing force, reducing tooth-root stress and raising torque capacity in strain wave gearing.

Electronic solenoids and range selection logic let a CVT controller manage final drive ratio across multiple transmission configurations.

A nested gear train inside the track frame preserves ground speed while fitting steerable tracks to smaller vehicles without raising ride height.

Stepped idler gear chains keep center distances constant while enabling flexible speed ratios, lower retrofit cost, and emergency operation.

Electromagnetic deformation of a magnet-embedded flex gear removes bearings in harmonic drives, cutting vibration, backlash, and wear.

Electrochemical grinding forms convex gear tooth edge breaks during tooth shaping, reducing burrs, stress concentration, and manual finishing.

A four-gearset, six-coupler layout achieves nine forward ratios while limiting transmission complexity and supporting reliable torque transfer.

Electrical actuator modules replace cross-car linkages to trigger simultaneous guide-rail safety braking during elevator overspeed events.

Concentric input shafts and compact gear-synchronizer layout add more shift stages without extending transmission length, aiding mountability and fuel efficiency.

A carrier-linked dual planetary gear mechanism matches slat and flap torque-speed needs in one aircraft drive unit, cutting weight and power use.

Four planetary gearsets and six selective couplers deliver at least nine forward ratios while simplifying transmission interconnections.

A meshed gear and pivot-pin articulation converts shaft motion into controlled jaw movement while preventing backdrive and unintended surgical actuation.

A nested motor and ring-gear layout boosts downrigger reel torque in a compact package, making heavier weights easier to handle.

A gap between two external tooth sets relieves stress concentration in dual-type strain wave gearing, improving fatigue strength and load capacity.

Shared clutches and brakes coordinate multiple planetary gearsets to deliver nine forward ratios with lower transmission complexity.

Bridge plates welded between supporting plates cut material waste while maintaining planetary carrier strength against rotational shear forces.

A bearing seal splits lubricant flow in a strain wave gear, letting excess oil return from the crossed roller bearing instead of leaking past the oil seal.

A centered non-meshing tooth region cuts tooth-root stress at peak wave-bearing load, improving fatigue strength in strain wave gearing.

Axially movable helical gear segments and a swashplate enable continuous ratio changes without CVT slippage, wear, or NITP limits.

A swedged worm-end adapter secures the steering column coupler against high axial loads while maintaining stable power transfer.

Four planetary gearsets and six selective couplers create nine forward ratios while limiting transmission complexity and supporting efficient torque transfer.

A ratchet tooth and stopper member block accidental downshift rotation, preventing double meshing, torque interruption, and transmission damage.