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    Rigid Couplings for Test, Measurement, and Inspection Applications

    Rigid couplings have no flexing element and are machined from a single piece of aluminum, steel, or stainless steel for the greatest torsional stiffness and torque capabilities of any coupling Ruland offers. These performance characteristics are beneficial for designers that need high accuracy and repeatability which is common in test, measurement, and inspection systems found in food processing, material testing, and medical applications.
    Ruland straight bore rigid couplings are manufactured with precision honed bores for collinearity to ensure a precise fit and greater torque transmission capability. Collinear bores prevent the coupling from introducing misalignment into systems where it would not otherwise be present allowing for reduced wear on joined components and increased system efficiency. Rigid couplings are available in set screw and one- and two-piece clamping styles in 1215 lead-free steel with a black oxide finish for the highest holding power, lightweight 2024 aluminum for low inertia, and 303 stainless steel for corrosion resistance. Bores are available in sizes from 1/8” to 2” and 3mm to 50mm. Ruland manufactures rigid couplings in our Marlborough, MA factory under strict controls using proprietary processes.

    Products

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    Items 193-216 of 586

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    1. Ruland MCLX-5-4-SS, One-Piece Rigid Coupling
      MCLX-5-4-SS
      As low as $52.30 $128.33
      Ruland MCLX-5-4-SS, 5mm x 4mm Rigid Coupling, 303 Stainless Steel, One-Piece Clamp Style, 15mm OD, 22mm Length
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    2. Ruland MCLX-5-5-A, One-Piece Rigid Coupling
      MCLX-5-5-A
      As low as $25.15 $36.88
      Ruland MCLX-5-5-A, 5mm x 5mm Rigid Coupling, Aluminum, One-Piece Clamp Style, 15mm OD, 22mm Length
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    3. Ruland MCLX-5-5-F, One-Piece Rigid Coupling
      MCLX-5-5-F
      As low as $24.83 $36.42
      Ruland MCLX-5-5-F, 5mm x 5mm Rigid Coupling, Black Oxide Steel, One-Piece Clamp Style, 15mm OD, 22mm Length
      Add to Compare
    4. Ruland MCLX-5-5-SS, One-Piece Rigid Coupling
      MCLX-5-5-SS
      As low as $44.70 $65.56
      Ruland MCLX-5-5-SS, 5mm x 5mm Rigid Coupling, 303 Stainless Steel, One-Piece Clamp Style, 15mm OD, 22mm Length
      Add to Compare
    5. Ruland MCLX-50-50-F, One-Piece Rigid Coupling
      MCLX-50-50-F
      As low as $294.35 $431.71
      Ruland MCLX-50-50-F, 50mm x 50mm Rigid Coupling, Black Oxide Steel, One-Piece Clamp Style, 85mm OD, 124mm Length
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    6. Ruland MCLX-50-50-SS, One-Piece Rigid Coupling
      MCLX-50-50-SS
      As low as $772.81 $1,133.46
      Ruland MCLX-50-50-SS, 50mm x 50mm Rigid Coupling, 303 Stainless Steel, One-Piece Clamp Style, 85mm OD, 124mm Length
      Add to Compare
    7. Ruland MCLX-6-6-A, One-Piece Rigid Coupling
      MCLX-6-6-A
      As low as $25.15 $36.88
      Ruland MCLX-6-6-A, 6mm x 6mm Rigid Coupling, Aluminum, One-Piece Clamp Style, 18mm OD, 30mm Length
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    8. Ruland MCLX-6-6-F, One-Piece Rigid Coupling
      MCLX-6-6-F
      As low as $24.83 $36.42
      Ruland MCLX-6-6-F, 6mm x 6mm Rigid Coupling, Black Oxide Steel, One-Piece Clamp Style, 18mm OD, 30mm Length
      Add to Compare
    9. Ruland MCLX-6-6-SS, One-Piece Rigid Coupling
      MCLX-6-6-SS
      As low as $44.70 $65.56
      Ruland MCLX-6-6-SS, 6mm x 6mm Rigid Coupling, 303 Stainless Steel, One-Piece Clamp Style, 18mm OD, 30mm Length
      Add to Compare
    10. Ruland MCLX-8-6-F, One-Piece Rigid Coupling
      MCLX-8-6-F
      As low as $36.57 $89.72
      Ruland MCLX-8-6-F, 8mm x 6mm Rigid Coupling, Black Oxide Steel, One-Piece Clamp Style, 24mm OD, 35mm Length
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    11. Ruland MCLX-8-6-SS, One-Piece Rigid Coupling
      MCLX-8-6-SS
      As low as $57.26 $140.49
      Ruland MCLX-8-6-SS, 8mm x 6mm Rigid Coupling, 303 Stainless Steel, One-Piece Clamp Style, 24mm OD, 35mm Length
      Add to Compare
    12. Ruland MCLX-8-8-A, One-Piece Rigid Coupling
      MCLX-8-8-A
      As low as $31.64 $46.41
      Ruland MCLX-8-8-A, 8mm x 8mm Rigid Coupling, Aluminum, One-Piece Clamp Style, 24mm OD, 35mm Length
      Add to Compare
    13. Ruland MCLX-8-8-F, One-Piece Rigid Coupling
      MCLX-8-8-F
      As low as $30.21 $44.31
      Ruland MCLX-8-8-F, 8mm x 8mm Rigid Coupling, Black Oxide Steel, One-Piece Clamp Style, 24mm OD, 35mm Length
      Add to Compare
    14. Ruland MCLX-8-8-SS, One-Piece Rigid Coupling
      MCLX-8-8-SS
      As low as $48.94 $71.78
      Ruland MCLX-8-8-SS, 8mm x 8mm Rigid Coupling, 303 Stainless Steel, One-Piece Clamp Style, 24mm OD, 35mm Length
      Add to Compare
    15. Ruland MSCC-10-10-F, Set Screw Rigid Coupling
      MSCC-10-10-F
      As low as $33.36 $48.93
      Ruland MSCC-10-10-F, 10mm x 10mm Rigid Coupling, Black Oxide Steel, Set Screw Style with Keyway, 29mm OD, 45mm Length
      Add to Compare
    16. Ruland MSCC-10-10-SS, Set Screw Rigid Coupling
      MSCC-10-10-SS
      As low as $63.50 $93.13
      Ruland MSCC-10-10-SS, 10mm x 10mm Rigid Coupling, 303 Stainless Steel, Set Screw Style with Keyway, 29mm OD, 45mm Length
      Add to Compare
    17. Ruland MSCC-12-12-F, Set Screw Rigid Coupling
      MSCC-12-12-F
      As low as $33.36 $48.93
      Ruland MSCC-12-12-F, 12mm x 12mm Rigid Coupling, Black Oxide Steel, Set Screw Style with Keyway, 29mm OD, 45mm Length
      Add to Compare
    18. Ruland MSCC-12-12-SS, Set Screw Rigid Coupling
      MSCC-12-12-SS
      As low as $63.50 $93.13
      Ruland MSCC-12-12-SS, 12mm x 12mm Rigid Coupling, 303 Stainless Steel, Set Screw Style with Keyway, 29mm OD, 45mm Length
      Add to Compare
    19. Ruland MSCC-14-14-F, Set Screw Rigid Coupling
      MSCC-14-14-F
      As low as $40.18 $58.92
      Ruland MSCC-14-14-F, 14mm x 14mm Rigid Coupling, Black Oxide Steel, Set Screw Style with Keyway, 34mm OD, 50mm Length
      Add to Compare
    20. Ruland MSCC-14-14-SS, Set Screw Rigid Coupling
      MSCC-14-14-SS
      As low as $87.94 $128.98
      Ruland MSCC-14-14-SS, 14mm x 14mm Rigid Coupling, 303 Stainless Steel, Set Screw Style with Keyway, 34mm OD, 50mm Length
      Add to Compare
    21. Ruland MSCC-16-16-F, Set Screw Rigid Coupling
      MSCC-16-16-F
      As low as $40.18 $58.92
      Ruland MSCC-16-16-F, 16mm x 16mm Rigid Coupling, Black Oxide Steel, Set Screw Style with Keyway, 34mm OD, 50mm Length
      Add to Compare
    22. Ruland MSCC-16-16-SS, Set Screw Rigid Coupling
      MSCC-16-16-SS
      As low as $87.94 $128.98
      Ruland MSCC-16-16-SS, 16mm x 16mm Rigid Coupling, 303 Stainless Steel, Set Screw Style with Keyway, 34mm OD, 50mm Length
      Add to Compare
    23. Ruland MSCC-20-20-F, Set Screw Rigid Coupling
      MSCC-20-20-F
      As low as $48.18 $70.67
      Ruland MSCC-20-20-F, 20mm x 20mm Rigid Coupling, Black Oxide Steel, Set Screw Style with Keyway, 42mm OD, 65mm Length
      Add to Compare
    24. Ruland MSCC-20-20-SS, Set Screw Rigid Coupling
      MSCC-20-20-SS
      As low as $118.65 $174.02
      Ruland MSCC-20-20-SS, 20mm x 20mm Rigid Coupling, 303 Stainless Steel, Set Screw Style with Keyway, 42mm OD, 65mm Length
      Add to Compare
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    1. Rigid Coupling 519 items
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    1. Inch 379 items
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    31. 25 mm 14 items
    32. 30 mm 14 items
    33. 35 mm 12 items
    34. 40 mm 12 items
    35. 50 mm 12 items
    Small Bore (B2)
    1. 0.1250 in 5 items
    2. 0.1875 in 15 items
    3. 0.2500 in 21 items
    4. 0.3125 in 3 items
    5. 0.3750 in 27 items
    6. 0.5000 in 37 items
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    18. 1.9375 in 8 items
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    20. 3 mm 5 items
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    22. 5 mm 5 items
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    25. 10 mm 19 items
    26. 12 mm 17 items
    27. 14 mm 24 items
    28. 15 mm 8 items
    29. 16 mm 16 items
    30. 20 mm 14 items
    31. 25 mm 14 items
    32. 30 mm 12 items
    33. 35 mm 12 items
    34. 40 mm 12 items
    35. 50 mm 12 items
    Keyway
    1. No 313 items
    2. Yes 206 items
    Material
    1. 303 Stainless Steel 282 items
    2. Aluminum 21 items
    3. Black Oxide Steel 283 items
    Outer Diameter (OD)
    1. 1/2 in 5 items
    2. 9/16 in 5 items
    3. 5/8 in 20 items
    4. 7/8 in 27 items
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    11. 2 1/16 in 50 items
    12. 2 1/2 in 18 items
    13. 2 5/8 in 44 items
    14. 3 1/8 in 12 items
    15. 3 3/8 in 20 items
    16. 15 mm 17 items
    17. 18 mm 7 items
    18. 24 mm 15 items
    19. 29 mm 38 items
    20. 34 mm 48 items
    21. 42 mm 18 items
    22. 45 mm 14 items
    23. 53 mm 14 items
    24. 67 mm 12 items
    25. 77 mm 12 items
    26. 85 mm 12 items
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    1. 5/8 in 5 items
    2. 3/4 in 7 items
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    4. 15/16 in 6 items
    5. 1 1/16 in 36 items
    6. 1 3/16 in 6 items
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    1. 13/16 in 5 items
    2. 5/8 in 5 items
    3. 3/4 in 7 items
    4. 7/8 in 14 items
    5. 15/16 in 6 items
    6. 1 in 10 items
    7. 1 1/16 in 36 items
    8. 1 3/16 in 6 items
    9. 1 3/8 in 23 items
    10. 1 3/4 in 19 items
    11. 2 in 20 items
    12. 2 1/4 in 24 items
    13. 2 1/2 in 24 items
    14. 3 in 36 items
    15. 3 1/8 in 18 items
    16. 3 1/4 in 38 items
    17. 3 5/8 in 18 items
    18. 3 7/8 in 38 items
    19. 4 1/2 in 12 items
    20. 4 7/8 in 20 items
    21. 22 mm 17 items
    22. 30 mm 7 items
    23. 35 mm 15 items
    24. 45 mm 38 items
    25. 50 mm 48 items
    26. 65 mm 18 items
    27. 75 mm 14 items
    28. 83 mm 14 items
    29. 95 mm 12 items
    30. 108 mm 12 items
    31. 124 mm 12 items
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