Flexible Couplings ( PM )

 
  Heavy duty steel coupling for torques up to 6000 KNm.

PM Flexible Couplings

  The Standard Range comprises
  • Shaft to shaft
  • Flang to shaft
  • Mill motor coupling
  • Brake drum coupling

   Applications
  • Metal manufacture
  • Mining and mineral processing
  • Pumps
  • Fans
  • Compressors
  • Cranes and hoists
  • Pulp and paper industry
  • General heavy duty industrial applications 
 
    Features
    Benefits
  • Severe shock load protection
  • Giving protection and avoiding failure of the driveline under
     high transient torques.
  • Intrinsically fail safe
  • Ensuring continuous operation of the driveline in the unlikely event of      rubber failure or damage.
  • Maintenance free
  • With no lubrication or adjustment required resulting in low     running costs.
  • Vibration control
  • Achieving low vibratory loads in the driveline components by
    selection of optimum stiffness characteristics.
  • Zero backlash
  • Eliminating torque amplifications through precompression of     the rubber elements.
  • Misalignment capability
  • Allows axial and radial misalignment between the driving and     driven machines.
  • Low cost
  • The PM Coupling gives the lowest lifetime cost.
 
    Construction details

  • PM Couplings up to and including PM600 are
    manufactured in steel. Driving flanges up to
    and including PM60 are steel forgings to
    BS970 grade 070 M55. Driving Flanges PM90
    to PM600 and all inner and outer members up
    to PM600 are steel casting to BS3100 grade
    A4.
  • PM Couplings above PM900 are supplied in
    spheroidal graphite to BS2789 grade 420/12
    unless otherwise specified.
  • Separate rubber elements with a choice of
    grade and hardness, styrene butadiene with
    60 shore hardness (SM60) being the     standard.
  • Rubber elements loaded in compression.
  • Rubber elements are totally enclosed.

 
 
 
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