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Saga Coupling

  • Elastomeric Pre-compression type coupling
  • Lower torsional stiffness (than other rubber-in-compression couplings)
  • No equal for high shock start/stop applications
  • Applications include: piston-driven devices, compressors, violent pounding, or crushing units
Saga is a general purpose, torsionally soft coupling with high tolerance to all forms of misalignment. The design features hexagonal or octagonal rubber donut-shaped elements with metal inserts positioned at each apex during the vulcanization process. These metal inserts carry actual bolts which fix the element to tines on cast, cylindrical hubs. Embedded inserts also have tines which connect with mating surfaces on hubs so that axial bolts can be easily torqued during assembly without twisting the rubber beyond the limits of its elasticity. The rubber between each apex is pre-compressed, so it is much more durable to the stresses arising from the various forms of misalignment and torsional vibrations.

While the Saga coupling is normally associated with shaft-to-shaft applications, adaptations for flange and flywheel mountings can be made. In addition, a floating shaft version for use in lieu of a universal joint drive shaft with separate torsional coupling is available. Its elements can also be stacked in series for use in applications with extreme transient or permanent parallel misalignment, or where torsional dynamics demand an extremely soft element for proper damping and/or vibratory decoupling. The rubber’s stiffness of 60 as measured against Shore A by durometer, covers the majority of such situations.
Product Specifics
Features
  • No end thrust in misalignment position
  • Absorbs misalignment and shock
  • No axial reaction force to damage or accelerate wear in system
  • bearings
  • Accepts constant angular misalignment of up to 3°
  • Parallel tolerance of 0.060 (1.5mm), while reaction force remains low
  • Lateral softness without complication, or sacrifice of performance or durability
  • Natural rubber can operate in temperatures from -60° to 200° F(-51° to 93° C)
  • Note: For applications requiring simultaneous angular and parallel misalignment, consult Lovejoy Engineering to ensure that heat generated from all three forms of stress do not exceed the coupling’s ability to dissipate heat.
Catalogs

Deltaflex Coupling
  • Patented all-metal flex-link coupling
  • Offers max misalignment capability with negligible reactionary load
  • No lubrication or other maintenance required
  • Applications include: compressors, pumps, fans, positioning devices, indexing tables, mixers, paper mill roll drives, drive line shafts, turbine drives, wind tunnels, cooling towers, and single bearing generator drives.

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Rigid Sleeve Coupling
  • Suitable for joining any two shafts when flexibility not required
  • Consists of a one piece sleeve, with two set screws
  • Applications include: light to medium duty applications

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Shaft Collars
  • Limits the range of travel allowed along a shaft
  • Solid, One & Two Piece Split Shaft collars available
  • Precision-machined collars offer ease of installation & strength
  • Applications include: limiting motor bases & machine tools

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Uniflex Coupling
  • Flexible triple wound spring design coupling
  • Addresses high misalignment, space limits, high temps, & has low backlash/windup
  • Smaller and lighter than most couplings of comparable torque ratings
  • Applications include: textile equipment, printing and binding registration, robotics/positioning, conveyors, carton
  • folding and gluing equipment, machine tools, centrifugal pumps, agricultural machinery, blowers, winding machines, and steering mechanisms

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