Yielding Coupling TRIZ Cases

A smaller flexible shaft nested inside a primary shaft tolerates high-speed misalignment while reducing coupling length and bellows cost.

A spring-loaded intermediate drive disengages jammer elements above a torque threshold to shield aircraft actuators from shock loads.

Integrated strain relief, axial-only bearing constraint, and guided grease delivery improve wave generator positioning, sealing, and lubrication.

A ring-shaped fixing member holds the worm shaft against axial loads, preventing collision, vibration, noise, and power transfer failure.

A spring-biased fork and rotatable side lock secure catheter handles quickly, avoiding cumbersome axial insertion during procedures.

A flexured standpipe lets the bull gear move under radial load while the clamped ball bearing carries axial load, reducing fretting, weight, and complexity.

A pivotable drum drive coupling uses a supported pin structure to prevent disengagement without limiting angle range during cartridge mounting.

A stepped inner bottom wall keeps large spherical rollers from blocking the shaft hole, enabling easier transmission shaft insertion during CV joint assembly.

A stepped outer race and matching boot adapter create frictional engagement that prevents radial inversion and extends CV joint boot life.

Annular grease shields retain bearing lubricant in a fluid-actuated clutch while fixed release gaps vent excess grease to limit overheating and wear.

Angled guide surfaces pre-orient the Oldham coupling during roller loading, cutting manual alignment time and misalignment risk.

Five equal-length beams balance linear and moment stiffness in both axes, improving precision pointing for cantilevered loads.

End-face shear pins let twin-screw extruder couplings sit side by side without axial offset while keeping torque transfer precise and backlash-free.

Flat mating surfaces replace balls and rollers in a down-hole U-joint to cut wear, reduce backlash, and improve drilling reliability.

Jointly deforming a tube and inserted sleeve forms circumferential interlocks in one step, cutting steering shaft connection cost and complexity.

Split dies and punch forging form multiple enlarged shaft sections with less shifting, less burr, and lower equipment cost.

Continuous diameter undulations in a composite drive shaft improve bending flexibility, torsional stiffness, and vibration control under shifting axes.

Mismatched diaphragm disc modes damp system excitations in flexible couplings, limiting deformation, fracture risk, and service-life loss.

Blend-out spline fillets and a crowned bearing boss reduce stress risers and improve input shaft durability under side loads.

A freely articulating joint body and locking sleeve transmit torque to subsea tooling while isolating the work string from bending moments.

A mechanically linked dual cam phaser enables independent timing of inner and outer concentric camshafts to improve valve control and engine efficiency.

Dividing a wedge packet ring into screw-joined segments simplifies coupling installation and defect repair without losing closure strength.

A hollow one-piece connecting member replaces a two-part gear coupling structure to cut mass, simplify maintenance, and keep reliable misalignment compensation.

Heat treatment, differential hardening, and vapor deposition coatings help universal joints resist wear and carry dynamic loads at high RPM.

A plug-in bolt and fork joint simplifies flushing hose assembly while transmitting torque and keeping the flow channel low in resistance.

Separated rectangular and trapezoidal spline sections expand tooth contact under peak torque, reducing edge stress and shaft damage.

A two-part adapter lets grease be introduced before final sealing, improving CV joint assembly, grease retention, and torque transfer between shafts.

Spring-based force reduction in a car-mounted elevator governor cuts shock to the safety gear while preserving fast actuation.

A snap-fit intermediate bearing lets the shaft swing and self-align, improving process cartridge attachment, release, and compact printer assembly.

Integral flanged wear sleeves replace costly hub bearings, enabling rotor tilt and rotation with easier maintenance and smaller hub packages.

A threaded clamping piece and curved ring lock the inner tube without tools, improving telescopic adjustment reliability and ease of use.

Short pins urged by elastic members replace long through-pins, shrinking the universal joint while simplifying assembly and maintaining secure engagement.

Linked tension members and a dual-axis wrist maintain cable tension and transmit torque through steep articulation in minimally invasive tools.

A paraffinic mineral oil grease blend maintains low-temperature flowability and lubricity in fixed CV joints to prevent stick slip and abnormal noise.

Moveable sliding coupling members let a turbomachine gearbox accommodate misalignment, reducing gear stress and wear while maintaining torque transmission.

Threaded and conical coupling surfaces eliminate rotor-to-pulse-unit play, preserving torque efficiency and simplifying pulse unit service.

A two-piece adapter lets the nut pass during assembly, then closes the joint cavity to retain grease and support torque transfer.

A continuous vent path across boot and shaft grooves relieves CV joint pressure while avoiding thin sections, blockage, and added parts.

Laser welding in a sealed space joins the CV joint cup and shaft without burrs, blowholes, or unstable weld quality, while lowering cost.

Consistent fork-to-groove surface contact lets this constant-velocity joint transfer higher torque and convert eccentric rotation in wellbore tools.

Resilient retaining tongues let a steering shaft ball cage accept different ball diameters without edge deformation, easing assembly and improving retention.

A three-linkage coupling keeps offset shafts rotating synchronously at constant speed while dispersing loads to reduce friction and wear.

A single-part additively manufactured flex coupling cuts encoder assembly complexity while preserving torsional stiffness and axial flexibility.

Multiple torque transfer features with elastic mounts spread torsional loads in a downhole steering joint, raising torque capacity and reliability.

Different powder metal zones harden ball tracks for wear resistance while keeping splines machinable and dimensionally precise.

An annular groove, sealing member, and retained plug create a fluid-tight slip yoke seal that blocks lubricant leakage and contamination.

A two-part outer sleeve applies elastomer preload to tune steering column torsional rigidity, improve axial positioning, and simplify assembly.