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Zero Backlash Couplings
 
DSD - Set Screw Style Double Disc Coupling
Note: All disc couplings now have a black anodized finish.
  • High torque
  • Balanced for high RPM
  • Low Inertia
  • No maintenance
  • High torsional stiffness
  • Constant velocity
  • Long life
  • Zero backlash
Single Disc Couplings
Double Disc Couplings
PART NUMBER BORE 1 (in) BORE 2 (in) OD (in) LENGTH L (in) SET  SCREW HUB WIDTH L1 (in) STATIC TORQUE (lb-in)  TORSIONAL STIFFNESS (lb-in/Deg)  MISALIGNMENT
ANGULAR (Deg) PARALLEL (in) AXIAL MOTION (in)
DSD10 2
(.1250)		 2
(.1250)		 .590 0.938 M3 .328 15 27
1.00 .002 .004
3
(.1875)		 3
(.1875)
4
(.2500)		 4
(.2500)
DSD12 3
(.1875)		 3
(.1875)		 .750 1.188 M3 .418 25 51
2.00 .004 .008
4
(.2500)		 4
(.2500)
5
(.3125)		 5
(.3125)
DSD16 4
(.2500)		 4
(.2500)		 1.000 1.375 M4 .467 50 61
2.00 .006 .012
5
(.3125)		 5
(.3125)
6
(.3750)		 6
(.3750)
8
(.5000)		 8
(.5000)
DSD21 5
(.3125)		 5
(.3125)		 1.313 1.750 M4 .590 100 253
2.00 .008 .016
6
(.3750)		 6
(.3750)
8
(.5000)		 8
(.5000)
10 (.6250) 10 (.6250)
DSD26 6
(.3750)		 6
(.3750)		 1.625 2.125 M5 .710 180 375
2.00 .010 .020
8
(.5000)		 8
(.5000)
10 (.6250) 10 (.6250)
12 (.7500) 12 (.7500)
DSD32 8
(.5000)		 8
(.5000)		 2.000 2.438 M6 .810 350 595

2.00

.012

.025
10 (.6250) 10 (.6250)
12 (.7500) 12 (.7500)
14 (.8750) 14 (.8750)
16 (1.0000) 16 (1.0000)
DSD36 8
(.5000)		 8
(.5000)		 2.250 3.000 M8 1.050 450 769
2.00 .012 .030
10 (.6250) 10 (.6250)
12 (.7500) 12 (.7500)
14 (.8750) 14 (.8750)
16 (1.0000) 16 (1.0000)
18 (1.1250) 16 (1.1250)
20 (1.2500) 20 (1.2500)


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 Couplings supplied with aluminum hubs and center spacers. Stainless steel hubs and center spacers available upon request. Insulating (Acetal) spacers available as standard items.

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