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Double Disc Couplings
Ruland double disc couplings are comprised of two anodized aluminum hubs, two sets of stainless steel disc springs, and a center spacer. This design allows the sets of disc springs to bend independent of each other to accommodate all forms of misalignment, including parallel. Center spacers are available in anodized aluminum or acetal for electrical isolation. Ruland disc couplings are zero-backlash and have a balanced design for reduced vibration at speeds up to 10,000 RPM. They are a simple assembly with few moving parts, reducing the risk of backlash and premature failure. Clamp and set screw hubs are available in bore sizes from 1/8” to 1-1/4” and 3mm to 32mm.
Features High torque
Balanced design for high RPM
Low inertia
No maintenance
High torsional stiffness
Constant velocity
Long life
Zero backlash
RoHS3 and REACH Compliant
Maximum speed: 10,000 RPM
Temperature Range: -10°F to 200°F
How to Specify Part numbers are in the following format with numbers representing sixteenths of an inch or millimeters:
Products
Download CAD File:
DCD32-1\"-25MM-A
DCD32-1"-25MM-A
As low as
$118.46
$173.75
Ruland DCD32-1"-25MM-A, 1" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 2.519" (64.0mm) Length
Download CAD File:
DCD32-14-14-A
DCD32-14-14-A
As low as
$118.46
$173.75
Ruland DCD32-14-14-A, 7/8" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.000" OD, 2.519" Length
Download CAD File:
DCD32-16-14-A
DCD32-16-14-A
As low as
$118.46
$173.75
Ruland DCD32-16-14-A, 1" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.000" OD, 2.519" Length
Download CAD File:
DCD32-24MM-7/8\"-A
DCD32-24MM-7/8"-A
As low as
$118.46
$173.75
Ruland DCD32-24MM-7/8"-A, 24mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 2.519" (64.0mm) Length
Download CAD File:
DCD32-25MM-7/8\"-A
DCD32-25MM-7/8"-A
As low as
$118.46
$173.75
Ruland DCD32-25MM-7/8"-A, 25mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 2.519" (64.0mm) Length
Download CAD File:
DCD36-1 1/4\"-25MM-A
DCD36-1 1/4"-25MM-A
As low as
$159.58
$234.06
Ruland DCD36-1 1/4"-25MM-A, 1 1/4" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-1 1/8\"-25MM-A
DCD36-1 1/8"-25MM-A
As low as
$159.58
$234.06
Ruland DCD36-1 1/8"-25MM-A, 1 1/8" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-1\"-25MM-A
DCD36-1"-25MM-A
As low as
$159.58
$234.06
Ruland DCD36-1"-25MM-A, 1" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-14-14-A
DCD36-14-14-A
As low as
$159.58
$234.06
Ruland DCD36-14-14-A, 7/8" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" OD, 3.080" Length
Download CAD File:
DCD36-16-14-A
DCD36-16-14-A
As low as
$159.58
$234.06
Ruland DCD36-16-14-A, 1" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" OD, 3.080" Length
Download CAD File:
DCD36-18-14-A
DCD36-18-14-A
As low as
$159.58
$234.06
Ruland DCD36-18-14-A, 1-1/8" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" OD, 3.080" Length
Download CAD File:
DCD36-20-14-A
DCD36-20-14-A
As low as
$159.58
$234.06
Ruland DCD36-20-14-A, 1-1/4" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" OD, 3.080" Length
Download CAD File:
DCD36-24MM-7/8\"-A
DCD36-24MM-7/8"-A
As low as
$159.58
$234.06
Ruland DCD36-24MM-7/8"-A, 24mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-25MM-7/8\"-A
DCD36-25MM-7/8"-A
As low as
$159.58
$234.06
Ruland DCD36-25MM-7/8"-A, 25mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-28MM-7/8\"-A
DCD36-28MM-7/8"-A
As low as
$159.58
$234.06
Ruland DCD36-28MM-7/8"-A, 28mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-30MM-7/8\"-A
DCD36-30MM-7/8"-A
As low as
$159.58
$234.06
Ruland DCD36-30MM-7/8"-A, 30mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD36-32MM-7/8\"-A
DCD36-32MM-7/8"-A
As low as
$159.58
$234.06
Ruland DCD36-32MM-7/8"-A, 32mm x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCD44-1 1/2\"-25MM-A
DCD44-1 1/2"-25MM-A
As low as
$178.18
$261.33
Ruland DCD44-1 1/2"-25MM-A, 1 1/2" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.750" (69.9mm) OD, 3.531" (89.7mm) Length
Download CAD File:
DCD44-1 1/4\"-25MM-A
DCD44-1 1/4"-25MM-A
As low as
$178.18
$261.33
Ruland DCD44-1 1/4"-25MM-A, 1 1/4" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.750" (69.9mm) OD, 3.531" (89.7mm) Length
Download CAD File:
DCD44-1 1/8\"-25MM-A
DCD44-1 1/8"-25MM-A
As low as
$178.18
$261.33
Ruland DCD44-1 1/8"-25MM-A, 1 1/8" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.750" (69.9mm) OD, 3.531" (89.7mm) Length
Download CAD File:
DCD44-1 3/8\"-25MM-A
DCD44-1 3/8"-25MM-A
As low as
$178.18
$261.33
Ruland DCD44-1 3/8"-25MM-A, 1 3/8" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.750" (69.9mm) OD, 3.531" (89.7mm) Length
Download CAD File:
DCD44-1\"-25MM-A
DCD44-1"-25MM-A
As low as
$178.18
$261.33
Ruland DCD44-1"-25MM-A, 1" x 25mm Double Disc Coupling, Aluminum, Clamp Style, 2.750" (69.9mm) OD, 3.531" (89.7mm) Length
Download CAD File:
DCD44-14-14-A
DCD44-14-14-A
As low as
$178.18
$261.33
Ruland DCD44-14-14-A, 7/8" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.750" OD, 3.531" Length
Download CAD File:
DCD44-16-14-A
DCD44-16-14-A
As low as
$178.18
$261.33
Ruland DCD44-16-14-A, 1" x 7/8" Double Disc Coupling, Aluminum, Clamp Style, 2.750" OD, 3.531" Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
DCD32-1"-25MM-A
1.0000 in
25 mm
2.519 in (64.0 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCD32-14-14-A
0.8750 in
0.8750 in
2.519 in
Aluminum
2.000 in
10,000 RPM
DCD32-16-14-A
1.0000 in
0.8750 in
2.519 in
Aluminum
2.000 in
10,000 RPM
DCD32-24MM-7/8"-A
24 mm
0.8750 in
2.519 in (64.0 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCD32-25MM-7/8"-A
25 mm
0.8750 in
2.519 in (64.0 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCD36-1 1/4"-25MM-A
1.2500 in
25 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-1 1/8"-25MM-A
1.1250 in
25 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-1"-25MM-A
1.0000 in
25 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-14-14-A
0.8750 in
0.8750 in
3.080 in
Aluminum
2.250 in
10,000 RPM
DCD36-16-14-A
1.0000 in
0.8750 in
3.080 in
Aluminum
2.250 in
10,000 RPM
DCD36-18-14-A
1.1250 in
0.8750 in
3.080 in
Aluminum
2.250 in
10,000 RPM
DCD36-20-14-A
1.2500 in
0.8750 in
3.080 in
Aluminum
2.250 in
10,000 RPM
DCD36-24MM-7/8"-A
24 mm
0.8750 in
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-25MM-7/8"-A
25 mm
0.8750 in
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-28MM-7/8"-A
28 mm
0.8750 in
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-30MM-7/8"-A
30 mm
0.8750 in
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD36-32MM-7/8"-A
32 mm
0.8750 in
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCD44-1 1/2"-25MM-A
1.5000 in
25 mm
3.531 in (89.7 mm)
Aluminum
2.750 in (69.9 mm)
10,000 RPM
DCD44-1 1/4"-25MM-A
1.2500 in
25 mm
3.531 in (89.7 mm)
Aluminum
2.750 in (69.9 mm)
10,000 RPM
DCD44-1 1/8"-25MM-A
1.1250 in
25 mm
3.531 in (89.7 mm)
Aluminum
2.750 in (69.9 mm)
10,000 RPM
DCD44-1 3/8"-25MM-A
1.3750 in
25 mm
3.531 in (89.7 mm)
Aluminum
2.750 in (69.9 mm)
10,000 RPM
DCD44-1"-25MM-A
1.0000 in
25 mm
3.531 in (89.7 mm)
Aluminum
2.750 in (69.9 mm)
10,000 RPM
DCD44-14-14-A
0.8750 in
0.8750 in
3.531 in
Aluminum
2.750 in
10,000 RPM
DCD44-16-14-A
1.0000 in
0.8750 in
3.531 in
Aluminum
2.750 in
10,000 RPM
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Now Shopping by
Small Bore (B2)
25 mm
Small Bore (B2)
0.8750 in
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