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Disc Couplings
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DSD - Set Screw Double Disc Coupling

Set Screw Double Disc Coupling DSD Line Drawing

Features

  • High torque
  • Balanced design for high RPM
  • Low Inertia
  • No maintenance
  • High torsional stiffness
  • Constant velocity
  • Long life
  • Zero backlash
  • RoHS2 and REACH Compliant
  • Maximum speed: 10,000 RPM
  • Bore tolerance: +.001"/-.000"
  • Temperature Range: -10°F to 200°F

Notes

  • Aluminum hubs are standard
  • Hubs available in stainless steel
 

How to Specify

Part numbers are in the following format with numbers representing sixteenths of an inch:

order bc

Inch to Metric Bore Combinations

  • Inch to metric bore combinations are available on the double disc coupling conversion page
  • For help on inch to metric bore combinations please email

 
 
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  Click part number for full technical specs, CAD files, and pricing
Part Number Large
Bore
B1 (in)
Small
Bore
B2 (in)
Outer
Diameter
OD (in)
Length
L (in)
Hub
Width
LH (in)
Set
Screw
Static
Torque
(lb-in)
Torsional
Stiffness
(lb-in/Deg)
Angular
(Deg)
Parallel
(in)
Axial
Motion
(in)
                     
DSD10-2-2-A 0.125 0.125 0.590 0.937 0.328 M3 15 27 1.0° 0.002 0.004
DSD10-3-2-A 0.188 0.125 0.590 0.937 0.328 M3 15 27 1.0° 0.002 0.004
DSD10-3-3-A 0.188 0.188 0.590 0.937 0.328 M3 15 27 1.0° 0.002 0.004
DSD10-4-2-A 0.250 0.125 0.590 0.937 0.328 M3 15 27 1.0° 0.002 0.004
DSD10-4-3-A 0.250 0.188 0.590 0.937 0.328 M3 15 27 1.0° 0.002 0.004
DSD10-4-4-A 0.250 0.250 0.590 0.937 0.328 M3 15 27 1.0° 0.002 0.004
DSD12-3-3-A 0.188 0.188 0.750 1.189 0.418 M3 25 51 2.0° 0.004 0.008
DSD12-4-3-A 0.250 0.188 0.750 1.189 0.418 M3 25 51 2.0° 0.004 0.008
DSD12-4-4-A 0.250 0.250 0.750 1.189 0.418 M3 25 51 2.0° 0.004 0.008
DSD12-5-3-A 0.313 0.188 0.750 1.189 0.418 M3 25 51 2.0° 0.004 0.008
DSD12-5-4-A 0.313 0.250 0.750 1.189 0.418 M3 25 51 2.0° 0.004 0.008
DSD12-5-5-A 0.313 0.313 0.750 1.189 0.418 M3 25 51 2.0° 0.004 0.008
DSD16-4-4-A 0.250 0.250 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-5-4-A 0.313 0.250 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-5-5-A 0.313 0.313 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-6-4-A 0.375 0.250 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-6-5-A 0.375 0.313 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-6-6-A 0.375 0.375 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-8-4-A 0.500 0.250 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-8-5-A 0.500 0.313 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-8-6-A 0.500 0.375 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD16-8-8-A 0.500 0.500 1.000 1.374 0.467 M4 50 61 2.0° 0.006 0.012
DSD21-10-10-A 0.625 0.625 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-10-5-A 0.625 0.313 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-10-6-A 0.625 0.375 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-10-8-A 0.625 0.500 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-5-5-A 0.313 0.313 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-6-5-A 0.375 0.313 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-6-6-A 0.375 0.375 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-8-5-A 0.500 0.313 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-8-6-A 0.500 0.375 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD21-8-8-A 0.500 0.500 1.313 1.770 0.590 M4 100 253 2.0° 0.008 0.016
DSD26-10-10-A 0.625 0.625 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-10-6-A 0.625 0.375 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-10-8-A 0.625 0.500 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-12-10-A 0.750 0.625 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-12-12-A 0.750 0.750 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-12-6-A 0.750 0.375 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-12-8-A 0.750 0.500 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-6-6-A 0.375 0.375 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-8-6-A 0.500 0.375 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD26-8-8-A 0.500 0.500 1.625 2.165 0.710 M5 180 375 2.0° 0.010 0.020
DSD32-10-10-A 0.625 0.625 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-10-8-A 0.625 0.500 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-12-10-A 0.750 0.625 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-12-12-A 0.750 0.750 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-12-8-A 0.750 0.500 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-14-10-A 0.875 0.625 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-14-12-A 0.875 0.750 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-14-14-A 0.875 0.875 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-14-8-A 0.875 0.500 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-16-10-A 1.000 0.625 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-16-12-A 1.000 0.750 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-16-14-A 1.000 0.875 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-16-16-A 1.000 1.000 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-16-8-A 1.000 0.500 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD32-8-8-A 0.500 0.500 2.000 2.519 0.810 M6 350 595 2.0° 0.012 0.025
DSD36-10-10-A 0.625 0.625 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-10-8-A 0.625 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-12-10-A 0.750 0.625 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-12-12-A 0.750 0.750 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-12-8-A 0.750 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-14-10-A 0.875 0.625 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-14-12-A 0.875 0.750 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-14-14-A 0.875 0.875 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-14-8-A 0.875 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-16-10-A 1.000 0.625 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-16-12-A 1.000 0.750 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-16-14-A 1.000 0.875 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-16-16-A 1.000 1.000 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-16-8-A 1.000 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-18-10-A 1.125 0.625 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-18-12-A 1.125 0.750 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-18-14-A 1.125 0.875 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-18-16-A 1.125 1.000 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-18-18-A 1.125 1.125 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-18-8-A 1.125 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-10-A 1.250 0.625 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-12-A 1.250 0.750 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-14-A 1.250 0.875 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-16-A 1.250 1.000 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-18-A 1.250 1.125 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-20-A 1.250 1.250 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-20-8-A 1.250 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
DSD36-8-8-A 0.500 0.500 2.250 3.080 1.050 M8 450 769 2.0° 0.012 0.030
 
Note 1 Static torque ratings are at maximum misalignment. To obtain dynamic rating, static ratings should be divided by 2 for non-reversing applications and by 4 for reversing applications.
Note 2 Hardware is alloy steel with black oxide finish. Parts DSD10 and DSD12 have one set screw on each end. DSD16, DSD21, DSD26, DSD32 and DSD36 have set screws 90° apart.
Note 3 Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 4 Ratings are for standard couplings supplied with black anodized aluminum hubs and center spacers. Stainless steel hubs and center spacers available upon request. Insulating (Acetal) spacers available with our DSDE series.
Note 5 Torque ratings for the couplings are based on the physical limitations/failure point of the disc springs. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the disc springs. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.
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