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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 MWC30-10-10-SS, Four Beam Coupling
      MWC30-10-10-SS
      As low as $128.56 $188.55
      Ruland MWC30-10-10-SS, 10mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 30.0mm OD, 38.0mm Length
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    2. Ruland MWC30-10-8-SS, Four Beam Coupling
      MWC30-10-8-SS
      As low as $128.56 $188.55
      Ruland MWC30-10-8-SS, 10mm x 8mm Four Beam Coupling, Stainless Steel, Clamp Style, 30.0mm OD, 38.0mm Length
      Add to Compare
    3. Ruland MWC30-10-9-SS, Four Beam Coupling
      MWC30-10-9-SS
      As low as $128.56 $188.55
      Ruland MWC30-10-9-SS, 10mm x 9mm Four Beam Coupling, Stainless Steel, Clamp Style, 30.0mm OD, 38.0mm Length
      Add to Compare
    4. Ruland MWC30-10MM-3/8"-SS, Four Beam Coupling
      MWC30-10MM-3/8"-SS
      As low as $128.56 $188.55
      Ruland MWC30-10MM-3/8"-SS, 10mm x 3/8" Four Beam Coupling, Stainless Steel, Clamp Style, 1.181" (30.0mm) OD, 1.496" (38.0mm) Length
      Add to Compare
    5. Ruland MWC30-3/8"-3/8"-SS, Four Beam Coupling
      MWC30-3/8"-3/8"-SS
      As low as $128.56 $188.55
      Ruland MWC30-3/8"-3/8"-SS, 3/8" x 3/8" Four Beam Coupling, Stainless Steel, Clamp Style, 1.181" (30.0mm) OD, 1.496" (38.0mm) Length
      Add to Compare
    6. Ruland MWC30-3/8"-8MM-SS, Four Beam Coupling
      MWC30-3/8"-8MM-SS
      As low as $128.56 $188.55
      Ruland MWC30-3/8"-8MM-SS, 3/8" x 8mm Four Beam Coupling, Stainless Steel, Clamp Style, 1.181" (30.0mm) OD, 1.496" (38.0mm) Length
      Add to Compare
    7. Ruland MWC30-3/8"-9MM-SS, Four Beam Coupling
      MWC30-3/8"-9MM-SS
      As low as $128.56 $188.55
      Ruland MWC30-3/8"-9MM-SS, 3/8" x 9mm Four Beam Coupling, Stainless Steel, Clamp Style, 1.181" (30.0mm) OD, 1.496" (38.0mm) Length
      Add to Compare
    8. Ruland MWC30-8-8-SS, Four Beam Coupling
      MWC30-8-8-SS
      As low as $128.56 $188.55
      Ruland MWC30-8-8-SS, 8mm x 8mm Four Beam Coupling, Stainless Steel, Clamp Style, 30.0mm OD, 38.0mm Length
      Add to Compare
    9. Ruland MWC30-9-8-SS, Four Beam Coupling
      MWC30-9-8-SS
      As low as $128.56 $188.55
      Ruland MWC30-9-8-SS, 9mm x 8mm Four Beam Coupling, Stainless Steel, Clamp Style, 30.0mm OD, 38.0mm Length
      Add to Compare
    10. Ruland MWC30-9-9-SS, Four Beam Coupling
      MWC30-9-9-SS
      As low as $128.56 $188.55
      Ruland MWC30-9-9-SS, 9mm x 9mm Four Beam Coupling, Stainless Steel, Clamp Style, 30.0mm OD, 38.0mm Length
      Add to Compare
    11. Ruland MWS30-10-10-SS, Four Beam Coupling
      MWS30-10-10-SS
      As low as $118.90 $174.39
      Ruland MWS30-10-10-SS, 10mm x 10mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
      Add to Compare
    12. Ruland MWS30-10-8-SS, Four Beam Coupling
      MWS30-10-8-SS
      As low as $118.90 $174.39
      Ruland MWS30-10-8-SS, 10mm x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
      Add to Compare
    13. Ruland MWS30-10-9-SS, Four Beam Coupling
      MWS30-10-9-SS
      As low as $118.90 $174.39
      Ruland MWS30-10-9-SS, 10mm x 9mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
      Add to Compare
    14. Ruland MWS30-10MM-3/8"-SS, Four Beam Coupling
      MWS30-10MM-3/8"-SS
      As low as $118.90 $174.39
      Ruland MWS30-10MM-3/8"-SS, 10mm x 3/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 1.181" (30.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    15. Ruland MWS30-3/8"-3/8"-SS, Four Beam Coupling
      MWS30-3/8"-3/8"-SS
      As low as $118.90 $174.39
      Ruland MWS30-3/8"-3/8"-SS, 3/8" x 3/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 1.181" (30.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    16. Ruland MWS30-3/8"-8MM-SS, Four Beam Coupling
      MWS30-3/8"-8MM-SS
      As low as $118.90 $174.39
      Ruland MWS30-3/8"-8MM-SS, 3/8" x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 1.181" (30.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    17. Ruland MWS30-3/8"-9MM-SS, Four Beam Coupling
      MWS30-3/8"-9MM-SS
      As low as $118.90 $174.39
      Ruland MWS30-3/8"-9MM-SS, 3/8" x 9mm Four Beam Coupling, Stainless Steel, Set Screw Style, 1.181" (30.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    18. Ruland MWS30-8-8-SS, Four Beam Coupling
      MWS30-8-8-SS
      As low as $118.90 $174.39
      Ruland MWS30-8-8-SS, 8mm x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
      Add to Compare
    19. Ruland MWS30-9-8-SS, Four Beam Coupling
      MWS30-9-8-SS
      As low as $118.90 $174.39
      Ruland MWS30-9-8-SS, 9mm x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
      Add to Compare
    20. Ruland MWS30-9-9-SS, Four Beam Coupling
      MWS30-9-9-SS
      As low as $118.90 $174.39
      Ruland MWS30-9-9-SS, 9mm x 9mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
      Add to Compare
    21. Ruland PCMR32-6-6-SS, Four Beam Coupling
      PCMR32-6-6-SS
      As low as $146.33 $214.61
      Ruland PCMR32-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Clamp Style, 31.8mm OD, 38.1mm Length
      Add to Compare
    22. Ruland PSMR32-6-6-SS, Four Beam Coupling
      PSMR32-6-6-SS
      As low as $135.37 $198.54
      Ruland PSMR32-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 31.8mm OD, 38.1mm Length
      Add to Compare
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