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Zero Backlash Couplings
 
DCD - Clamp Style Double Disc Coupling
  • 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) CLAMP SCREW HUB WIDTH L1 (in) STATIC TORQUE (lb-in)  TORSIONAL STIFFNESS (lb-in/Deg)  MISALIGNMENT
ANGULAR (Deg) PARALLEL (in) AXIAL MOTION (in)
DCD10 2
(.1250)		 2
(.1250)		 .590 0.938 M2 .328 15 27
1.00 .002 .004
3
(.1875)		 3
(.1875)
4
(.2500)		 4
(.2500)
DCD12 3
(.1875)		 3
(.1875)		 .750 1.188 M2.5 .418 25 51
2.00 .004 .008
4
(.2500)		 4
(.2500)
5
(.3125)		 5
(.3125)
DCD16 4
(.2500)		 4
(.2500)		 1.000 1.375 M3 .467 50 61
2.00 .006 .012
5
(.3125)		 5
(.3125)
6
(.3750)		 6
(.3750)
8
(.5000)		 8
(.5000)
DCD21 5
(.3125)		 5
(.3125)		 1.313 1.750 M3 .590 100 253
2.00 .008 .016
6
(.3750)		 6
(.3750)
8
(.5000)		 8
(.5000)
10
(.6250)		 10
(.6250)
DCD26 6
(.3750)		 6
(.3750)		 1.625 2.125 M4 .710 180 375
2.00 .010 .020
8
(.5000)		 8
(.5000)
10
(.6250)		 10
(.6250)
12
(.7500)		 12
(.7500)
DCD32 8
(.5000)		 8
(.5000)		 2.000 2.438 M5 .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)
DCD36 8
(.5000)		 8
(.5000)		 2.250 3.000 M6 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.
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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