Toothed Gearings TRIZ Cases

Axially distributed bearings in a planetary geartrain balance radial loads, protect lubrication, and prevent damage during dual-mode propulsion.

Segmented projection contacts secure torque-transmitting parts while improving oil drainage, lowering drag torque, and reducing radial height.

Integrated shaft, casing, and end-cover sealing enables direct motor coupling and maintenance access without draining reducer lubricant.

Wider tooth-recess transmission pairs let the flex gear shift circumferentially, easing twisting stress and reducing breakage risk.

Hybrid crystalline metal and bulk metallic glass components balance wear and lower contact stress for long-life rotational systems without lubrication.

When dog clutch engagement fails, the controller reverses the dog ring and retries engagement to shorten shift transition time.

A centrifugal clutch and dual gear sets let a power tool shift automatically between high torque and high speed as cutting load changes.

A rolling cam on a ring gear delivers high reduction and torque in less brake installation space, enabling smaller electric motors.

A planetary gear and synchronizer clutch layout cuts rotational drag losses while delivering wide, uniform forward ratios in automatic transmissions.

Oil channels built into the planetary carrier feed pinion gears, cutting sun gear friction and heat to support higher torque at speed.

A split gear with yieldable axial retention disconnects torque under overload, protecting large rotating assemblies and simplifying retrofit.

A motion bar and linkage piece let one motor switch gearbox outputs for lifting and traveling, cutting space and gearbox count.

A modular three-stage gear train replaces inefficient worm gearing to improve shift actuator efficiency, assembly, and emergency parking safety.

Axial gear contact with a friction plate adds loss only in increased-speed operation, lowering retention torque without hurting reduced-speed efficiency.

A shaft-guided sterile adapter aligns surgical instruments for quick coupling to teleoperated actuators while preventing contamination.

Model-based hydraulic pressure control with learned correction values reduces manual mapping and delivers smoother, more stable powertrain shifts.

Parallel offset intermediate shafts and chain or belt links boost torque while cutting energy loss, friction, and maintenance across varied input RPM.

A staged clutch and gearing layout delivers 24 speed ratios for agricultural vehicles while cutting shafts, weight, and transmission losses.

A compressed elastic element in the pinion recess damps axial movement and cuts steering NVH without raising bearing preload.

A partition plate and directed oil passage keep reducer lubrication stable during acceleration, deceleration, uphill, and downhill driving.

A nested synchronizer between adjacent gearwheels cuts lay-shaft parts and axial length while preserving selective coupling in vehicle transmissions.

A grease sump built into the engagement claw retains lubricant during linear motion, reducing wear in eccentric gear seat lifters.

A selector-cam transmission lets one motor drive multiple end effector functions, cutting handle size, cost, and electrical complexity.

Rotatable wings shift between hover and forward flight to cut rotor download, offload rotor power, and improve anti-torque without extra thrusters.

Frequency-domain comparison of input and output shaft signals improves gear-coupled drive position calibration when error sources overlap.

A bar-shaped wave generator presses a plate flex spline to simplify harmonic reducer geometry, cut cost, and keep thin coaxial torque transmission precise.

Slide grooves and a snap-fit lid simplify toy differential assembly and disassembly while maintaining sturdy bevel-gear torque transmission.

Selective clutch and brake engagement across five planetary gearsets enables at least nine forward and nine reverse ratios with flexible torque transfer.

An electric motor and servo gear drive a recirculating-ball steering transmission that cuts hydraulic losses, saves space, and improves torque stability.

A bevel-and-spur gear hinge cuts rotation lag and tolerance buildup, keeping foldable phone bodies synchronized during screen folding.

A support plenum and fluid damper feed lubricant into a rotating epicyclic carrier, sustaining lubrication across flight modes and limiting wear.

Keeping two common friction elements engaged in neutral cuts shift shock, improves range response, and helps prevent engine stall.

An epicyclic gear train slows tape blade retraction, cuts spring size, and enables longer or thicker blades in a smaller housing.

A double gear pair shifts from high startup torque to faster motion after a set angle, helping motor vehicle adjusting drives stay compact.

A selective connection element disconnects one clutch path to cut drag torque, limit high-speed centrifugation, and smooth ratio changes.

Dual planetary gears and switch mechanisms let a driver drill shift among high, medium, and low speed modes to match torque demands.

A compound planetary stage adds selectable intermediate gear reduction so one cordless tool can cover high-speed drilling and low-speed, high-torque work.

A multi-stage planetary rotary lock redirects torque to release a bound linear actuator under high loads without extra unlocking inputs.

Separate oil paths in a planet gear bearing assembly keep sliding-bearing debris out of thrust bearings, extending gearbox service life.

A worm or plane spiral gear and eccentric drive raise reduction ratio in a compact hammer drill while cutting space use and housing vibration.

A sterile adapter uses curved alignment and engagement features to isolate non-sterile actuators while speeding surgical instrument exchange.

A housing projection supports the shaft bearing during press-in, preventing tilt, reducing friction, and blocking lubricant leakage to the motor.

Dual freewheel stages keep the output rotating in one direction even when the motor reverses, allowing standard auxiliary components.

A single crown gear stage with evoloid toothing delivers high transmission ratios in less installation space while enabling manual reset.

Torsional prestress between two casing connections helps a flexible planet carrier handle high torque with lower stress and vibration.

Curved R-chamfers on intersecting-axes gear teeth guide lubricant into the tooth face interface, reducing friction under high torque.

An epicyclic reduction gear slows tape retraction while enabling a smaller high-energy spring for longer or thicker blades.

A grooved shift drum and biasing members guide shift forks to avoid twisting forces from dog misalignment while keeping the transmission compact.

A planetary bevel gear controller with overrunning clutches limits wheel speed difference automatically to maintain traction and driving torque.

Different tooth profiles on each clutch collar face balance high torque capacity with quicker low-torque gear engagement and lower material use.