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    Beam Couplings for Medical Applications

    Ruland 4- and 6-beam couplings are machined from a single piece of aluminum or stainless steel with multiple spiral (helical) cuts for greater torque, torsional stiffness, and parallel misalignment capabilities than commodity style single beam couplings. The 4-beam style (P- and MW-Series) has two sets of two beams allowing for greater flexibility and more compact lengths than 6-beam couplings. They are ideally suited for encoders and tachometers that have small sensitive bearings which require a coupling with low bearing loads. light duty power transmission applications such as pipetting or other small diagnostic equipment. The 6-beam style (F-series) has two sets of three beams for higher torque and torsional stiffness capabilities. They are commonly used in light duty applications such as connecting a stepper motor to a lead screw, which is often found in pipetting or other small diagnostic equipment. Ruland beam couplings have a zero-backlash balanced design for smooth operation up to 6,000 RPM.
    Designers prefer aluminum beam couplings for their low inertia, flexibility and cost effectiveness. Stainless steel beam couplings are designed for applications with higher torque, but have significantly higher inertia that must be accounted for during machine design. Ruland beam couplings are available with clamp or set screw attachments in bore sizes ranging from 3/32” to ¾” and 3mm to 20mm. They are manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

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    1. Ruland PCR20-1/2"-10MM-A, Four Beam Coupling
      PCR20-1/2"-10MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-10MM-A, 1/2" x 10mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    2. Ruland PCR20-1/2"-11MM-A, Four Beam Coupling
      PCR20-1/2"-11MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-11MM-A, 1/2" x 11mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    3. Ruland PCR20-1/2"-12MM-A, Four Beam Coupling
      PCR20-1/2"-12MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-12MM-A, 1/2" x 12mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    4. Ruland PCR20-1/2"-6MM-A, Four Beam Coupling
      PCR20-1/2"-6MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-6MM-A, 1/2" x 6mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    5. Ruland PCR20-1/2"-7MM-A, Four Beam Coupling
      PCR20-1/2"-7MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-7MM-A, 1/2" x 7mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    6. Ruland PCR20-1/2"-8MM-A, Four Beam Coupling
      PCR20-1/2"-8MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-8MM-A, 1/2" x 8mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    7. Ruland PCR20-1/2"-9MM-A, Four Beam Coupling
      PCR20-1/2"-9MM-A
      As low as $58.15 $85.29
      Ruland PCR20-1/2"-9MM-A, 1/2" x 9mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    8. Ruland PSR20-1/2"-10MM-A, Four Beam Coupling
      PSR20-1/2"-10MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-10MM-A, 1/2" x 10mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    9. Ruland PSR20-1/2"-11MM-A, Four Beam Coupling
      PSR20-1/2"-11MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-11MM-A, 1/2" x 11mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    10. Ruland PSR20-1/2"-12MM-A, Four Beam Coupling
      PSR20-1/2"-12MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-12MM-A, 1/2" x 12mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    11. Ruland PSR20-1/2"-6MM-A, Four Beam Coupling
      PSR20-1/2"-6MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-6MM-A, 1/2" x 6mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    12. Ruland PSR20-1/2"-7MM-A, Four Beam Coupling
      PSR20-1/2"-7MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-7MM-A, 1/2" x 7mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    13. Ruland PSR20-1/2"-8MM-A, Four Beam Coupling
      PSR20-1/2"-8MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-8MM-A, 1/2" x 8mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
    14. Ruland PSR20-1/2"-9MM-A, Four Beam Coupling
      PSR20-1/2"-9MM-A
      As low as $50.14 $73.54
      Ruland PSR20-1/2"-9MM-A, 1/2" x 9mm Four Beam Coupling, Aluminum, Set Screw Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
      Add to Compare
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