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R & W Couplings

R & W provides the widest range of couplings for servo precision shaft to shaft connection. Some of the product offerings are shown below. R&W provides torque limiters, bellows couplings, economy bellows, miniature bellows, line shafts, elastomer couplings and linear couplings.

R & W has been ISO 9001 certified for the production of precision couplings.

The metal bellows coupling is the center of development at R & W. The integration of the metal bellows in a new development has produced a coupling with high torsion stiffness and the ability to equalize shaft misalignment.


Torque Limiters (Series SK)
 

Compact and Backlash-free

For 0.1-2,500Nm for shaft diameter 4-70mm
single-position, multi-position re-engagement
multi-position, load holding or full disengagement

  • Compact simple design
  • Stiff, backlash-free design
  • Low moment of inertia
  • Low residual friction after disengagement
  • Disengage in milliseconds

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Metal Bellows (Series BK)
 

Flexible and torsionally rigid

For 15-10,000 Nm for shaft diameter 10-180mm

  • High dynamic servo axis
  • Absolutely backlash free
  • Easy to assemble, press-fit available
  • Speeds up to 50,000 RPM
  • Compensate for misalignment
  • Low moment of inertia

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Miniature Bellows (Series MK)
 

Versatile and precise

For .05-10 Nm for shaft diameter 1-28 mm
with standard balancing up to 20,000 RPM

  • High dynamic servo axis
  • Absolutely backlash free
  • Easy to assemble, press-fit available
  • Economy types available
  • Low restoring forces
  • For all measuring and control systems

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Bellows Economy Class(Series BKL)
 

Reliable and low cost

For 2-500 Nm for shaft diameter 4-62 mm

  • Quality: leading in cost-effectiveness
  • Friction clamped connection
  • low moment of inertia

 


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Line Shafts (Series ZA)
 

Wear and maintenance-free

For 10- 4,000 Nm for shaft diameter 10-100 mm

  • Easy to assemble and disassemble
  • standard lengths up to 6 meters
  • No intermediate support
  • High compensation for misalignment
  • Intermediate tube on cardanic bearings
  • Low moment of inertia

 


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Elastomer Couplings SERVOMAX® (Series EK)
 

Precise and Compact

For 10-1,100 Nm for shaft diameter 5-60 mm

  • Vibration absorbing
  • Electrically insulating
  • backlash-free
  • Press fit design
  • Compensation for misalignment

 


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Linear Couplings (Series LK)
 

Zero axial backlash

For 70-800 Nm for threads M5-M12

  • Compact design
  • Low dead weight
  • High Acceleration rates
  • Low lateral restoring forces
  • For high tensile and compression forces
  • Compensation for lateral misalignment

 


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