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    Beam Couplings for Encoders

    Ruland 4-beam couplings are manufactured from a single piece of aluminum or stainless steel with multiple spiral (helical) cuts allowing for a zero-backlash encoder coupling with higher accuracy and better overall misalignment capabilities than traditional single beam couplings. They are designed with extra flexibility to provide reduced bearing loads, which is critical in encoders which have small sensitive bearings. Ruland 4-beam couplings have a balanced design for reduced vibration at speeds up to 6,000 RPM. Ruland manufactures two series of 4-beam couplings, P and MW, giving designers a variety of performance and dimensional characteristics to choose from. Ruland manufactures 4-beam couplings in our Marlborough, Massachusetts factory with bore sizes ranging from 3/32” to 1/2” or 3mm to 12mm.

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    1. Ruland PCMR16-4-3-A, Four Beam Coupling
      PCMR16-4-3-A
      As low as $32.53 $47.70
      Ruland PCMR16-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
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    2. Ruland PCMR16-4-4-A, Four Beam Coupling
      PCMR16-4-4-A
      As low as $32.53 $47.70
      Ruland PCMR16-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    3. Ruland PCMR16-5-3-A, Four Beam Coupling
      PCMR16-5-3-A
      As low as $32.53 $47.70
      Ruland PCMR16-5-3-A, 5mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    4. Ruland PCMR16-5-4-A, Four Beam Coupling
      PCMR16-5-4-A
      As low as $32.53 $47.70
      Ruland PCMR16-5-4-A, 5mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
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    5. Ruland PCMR16-5-5-A, Four Beam Coupling
      PCMR16-5-5-A
      As low as $32.53 $47.70
      Ruland PCMR16-5-5-A, 5mm x 5mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
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    6. Ruland PSMR16-4-3-A, Four Beam Coupling
      PSMR16-4-3-A
      As low as $27.28 $40.01
      Ruland PSMR16-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
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    7. Ruland PSMR16-4-4-A, Four Beam Coupling
      PSMR16-4-4-A
      As low as $27.28 $40.01
      Ruland PSMR16-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    8. Ruland PSMR16-5-3-A, Four Beam Coupling
      PSMR16-5-3-A
      As low as $27.28 $40.01
      Ruland PSMR16-5-3-A, 5mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    9. Ruland PSMR16-5-4-A, Four Beam Coupling
      PSMR16-5-4-A
      As low as $27.28 $40.01
      Ruland PSMR16-5-4-A, 5mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    10. Ruland PSMR16-5-5-A, Four Beam Coupling
      PSMR16-5-5-A
      As low as $27.28 $40.01
      Ruland PSMR16-5-5-A, 5mm x 5mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
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