The coupling is available:

  • Exposed bolt and shrouded bolt configurations.
  • Sizes 252 through 1202.
  • Ranging from 2" to 12" in diameter.
  • Off-the-shelf bore range from 1/2" to 2 7/8" with standard key-ways and setscrews. 

Maximum 3.50" bore capacity.

  • Torque capacity up to 13,300 lb-in.
  • Custom bores available in 24 hours or less.





  • Up to 21HP / 100RPM , 3 1/2 bore, 6500RPM.
  • Up to 10° of misalignment.
  • Maintenance free and easy to assemble.
  • Resilient design.
  • Great for low HP reciprocating drives.
  • Absorbs vibration.

Specially developed, resilient, non-cold-flow neoprene biscuits are responsible for the flexibility of the MORFLEX® coupling. Relative movement between shafts is confined to the controlled displacement of the neoprene. Preloading the biscuits in assembly permits them to allow considerable deflection, even with a light load. The shape of the neoprene biscuit has been carefully designed for uniform stress and deflection. This is an important operational advantage and contributes greatly to the life of the coupling. The MORFLEX couplings can be used in ambient temperatures ranging from 0°F to 200°F.

The MORFLEX coupling also has a universal driveshaft series for greater shaft separations with a slip joint construction. This allows universal action to accommodate angular or parallel misalignment. The shaft members are full of spline connections and slide freely under load.


Additional Data

 Catalog No.
 Capacity HP per 100 Rpm.
 Capacity Torque lb. ft.
 Max. RPM
 Working Angle
Parallel Misalign.
Stock Min. Plain Bores
Max. Bore w/22 Over KW
 Max. Bore w/SS at 180 deg.
Approx. Weight of Coupling
 252-O  .25  13  6500  1.5 deg.
 .010  3/8  9/16  3/4  3/4
 302-O  .38  20  6000  2 deg.
 .010  3/8  11/16  7/8  1 1/4
 352-O  .60  32  5500  3 deg.
 .015  3/8  7/8  1  2
 402-R  1.00  53  5500  4 deg.  .015  1/2  1  1 1/4  4
 502-R  1.60  84  5300  5 deg.  .020  1/2  1 1/4  1 1/2  7
 602-R  3.25  171  5000  5 deg.  .030  3/4  1 5/8
 1 3/4  12
 702-R  5.40  284  4600  5 deg.  .035  7/8  1 3/4
 2 1/8
 802-R  7.40  389  4400  5 deg.  .040  1  2 1/4
 2 1/2  30
 902-R  10.00  525  4200  4 deg.  .040  1  2 3/8
 2 3/4  48
 1002-R  13.80  725  4000  4 deg.  .045  1 1/4
 2 3/4
 3 1/4
 1202-R  21.10  1110  3800  2 deg.
 .050  2  3  3 1/2

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