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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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    19 Items

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    1. Ruland PCMR19-6-3-SS, Four Beam Coupling
      PCMR19-6-3-SS
      As low as $83.24 $122.08
      Ruland PCMR19-6-3-SS, 6mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 22.9mm Length
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    2. Ruland PCMR19-6-4-SS, Four Beam Coupling
      PCMR19-6-4-SS
      As low as $83.24 $122.08
      Ruland PCMR19-6-4-SS, 6mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 22.9mm Length
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    3. Ruland PCMR19-6-5-SS, Four Beam Coupling
      PCMR19-6-5-SS
      As low as $83.24 $122.08
      Ruland PCMR19-6-5-SS, 6mm x 5mm Four Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 22.9mm Length
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    4. Ruland PCMR19-6-6-SS, Four Beam Coupling
      PCMR19-6-6-SS
      As low as $83.24 $122.08
      Ruland PCMR19-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 22.9mm Length
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    5. Ruland PCR16-8MM-1/4"-SS, Four Beam Coupling
      PCR16-8MM-1/4"-SS
      As low as $99.80 $146.37
      Ruland PCR16-8MM-1/4"-SS, 8mm x 1/4" Four Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
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    6. Ruland PCR16-8MM-5/16"-SS, Four Beam Coupling
      PCR16-8MM-5/16"-SS
      As low as $99.80 $146.37
      Ruland PCR16-8MM-5/16"-SS, 8mm x 5/16" Four Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
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    7. Ruland PCR16-9MM-1/4"-SS, Four Beam Coupling
      PCR16-9MM-1/4"-SS
      As low as $99.80 $146.37
      Ruland PCR16-9MM-1/4"-SS, 9mm x 1/4" Four Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
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    8. Ruland PCR16-9MM-5/16"-SS, Four Beam Coupling
      PCR16-9MM-5/16"-SS
      As low as $99.80 $146.37
      Ruland PCR16-9MM-5/16"-SS, 9mm x 5/16" Four Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
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    9. Ruland PCR18-8MM-1/4"-A, Four Beam Coupling
      PCR18-8MM-1/4"-A
      As low as $47.49 $69.65
      Ruland PCR18-8MM-1/4"-A, 8mm x 1/4" Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
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    10. Ruland PCR18-8MM-5/16"-A, Four Beam Coupling
      PCR18-8MM-5/16"-A
      As low as $47.49 $69.65
      Ruland PCR18-8MM-5/16"-A, 8mm x 5/16" Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
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    11. Ruland PSMR19-6-3-SS, Four Beam Coupling
      PSMR19-6-3-SS
      As low as $72.98 $107.04
      Ruland PSMR19-6-3-SS, 6mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
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    12. Ruland PSMR19-6-4-SS, Four Beam Coupling
      PSMR19-6-4-SS
      As low as $72.98 $107.04
      Ruland PSMR19-6-4-SS, 6mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
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    13. Ruland PSMR19-6-5-SS, Four Beam Coupling
      PSMR19-6-5-SS
      As low as $72.98 $107.04
      Ruland PSMR19-6-5-SS, 6mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
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    14. Ruland PSMR19-6-6-SS, Four Beam Coupling
      PSMR19-6-6-SS
      As low as $72.98 $107.04
      Ruland PSMR19-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    15. Ruland PSR16-8MM-1/4"-SS, Four Beam Coupling
      PSR16-8MM-1/4"-SS
      As low as $89.84 $131.76
      Ruland PSR16-8MM-1/4"-SS, 8mm x 1/4" Four Beam Coupling, Stainless Steel, Set Screw Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
      Add to Compare
    16. Ruland PSR16-8MM-5/16"-SS, Four Beam Coupling
      PSR16-8MM-5/16"-SS
      As low as $89.84 $131.76
      Ruland PSR16-8MM-5/16"-SS, 8mm x 5/16" Four Beam Coupling, Stainless Steel, Set Screw Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
      Add to Compare
    17. Ruland PSR16-9MM-5/16"-SS, Four Beam Coupling
      PSR16-9MM-5/16"-SS
      As low as $89.84 $131.76
      Ruland PSR16-9MM-5/16"-SS, 9mm x 5/16" Four Beam Coupling, Stainless Steel, Set Screw Style, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
      Add to Compare
    18. Ruland PSR18-8MM-1/4"-A, Four Beam Coupling
      PSR18-8MM-1/4"-A
      As low as $41.35 $60.64
      Ruland PSR18-8MM-1/4"-A, 8mm x 1/4" Four Beam Coupling, Aluminum, Set Screw Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    19. Ruland PSR18-8MM-5/16"-A, Four Beam Coupling
      PSR18-8MM-5/16"-A
      As low as $41.35 $60.64
      Ruland PSR18-8MM-5/16"-A, 8mm x 5/16" Four Beam Coupling, Aluminum, Set Screw Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
      Add to Compare
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