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Single Disc Couplings
Ruland single disc couplings are comprised of two anodized aluminum hubs and one set of stainless steel disc springs. This design allows them to be used in confined spaces where other styles of coupling may not be able to fit. The single set of disc springs does not allow for any parallel misalignment. 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:
DCS12-7MM-1/4\"-A
DCS12-7MM-1/4"-A
As low as
$55.90
$81.99
Ruland DCS12-7MM-1/4"-A, 7mm x 1/4" Single Disc Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 0.906" (23.0mm) Length
Download CAD File:
DCS12-7MM-3/16\"-A
DCS12-7MM-3/16"-A
As low as
$55.90
$81.99
Ruland DCS12-7MM-3/16"-A, 7mm x 3/16" Single Disc Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 0.906" (23.0mm) Length
Download CAD File:
DCS16-7MM-1/4\"-A
DCS16-7MM-1/4"-A
As low as
$62.13
$91.12
Ruland DCS16-7MM-1/4"-A, 7mm x 1/4" Single Disc Coupling, Aluminum, Clamp Style, 1.000" (25.4mm) OD, 1.031" (26.2mm) Length
Download CAD File:
DCS32-25MM-1/2\"-A
DCS32-25MM-1/2"-A
As low as
$96.23
$141.14
Ruland DCS32-25MM-1/2"-A, 25mm x 1/2" Single Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCS32-25MM-3/4\"-A
DCS32-25MM-3/4"-A
As low as
$96.23
$141.14
Ruland DCS32-25MM-3/4"-A, 25mm x 3/4" Single Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCS32-25MM-5/8\"-A
DCS32-25MM-5/8"-A
As low as
$96.23
$141.14
Ruland DCS32-25MM-5/8"-A, 25mm x 5/8" Single Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCS32-25MM-7/8\"-A
DCS32-25MM-7/8"-A
As low as
$96.23
$141.14
Ruland DCS32-25MM-7/8"-A, 25mm x 7/8" Single Disc Coupling, Aluminum, Clamp Style, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCS36-25MM-1/2\"-A
DCS36-25MM-1/2"-A
As low as
$129.60
$190.09
Ruland DCS36-25MM-1/2"-A, 25mm x 1/2" Single Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCS36-25MM-3/4\"-A
DCS36-25MM-3/4"-A
As low as
$129.60
$190.09
Ruland DCS36-25MM-3/4"-A, 25mm x 3/4" Single Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCS36-25MM-5/8\"-A
DCS36-25MM-5/8"-A
As low as
$129.60
$190.09
Ruland DCS36-25MM-5/8"-A, 25mm x 5/8" Single Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCS36-25MM-7/8\"-A
DCS36-25MM-7/8"-A
As low as
$129.60
$190.09
Ruland DCS36-25MM-7/8"-A, 25mm x 7/8" Single Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCSK32-25MM-1/2\"-A
DCSK32-25MM-1/2"-A
As low as
$117.57
$172.44
Ruland DCSK32-25MM-1/2"-A, 25mm x 1/2" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCSK32-25MM-3/4\"-A
DCSK32-25MM-3/4"-A
As low as
$117.57
$172.44
Ruland DCSK32-25MM-3/4"-A, 25mm x 3/4" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCSK32-25MM-5/8\"-A
DCSK32-25MM-5/8"-A
As low as
$117.57
$172.44
Ruland DCSK32-25MM-5/8"-A, 25mm x 5/8" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCSK32-25MM-7/8\"-A
DCSK32-25MM-7/8"-A
As low as
$117.57
$172.44
Ruland DCSK32-25MM-7/8"-A, 25mm x 7/8" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.000" (50.8mm) OD, 1.813" (46.1mm) Length
Download CAD File:
DCSK36-25MM-1/2\"-A
DCSK36-25MM-1/2"-A
As low as
$155.25
$227.70
Ruland DCSK36-25MM-1/2"-A, 25mm x 1/2" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCSK36-25MM-3/4\"-A
DCSK36-25MM-3/4"-A
As low as
$155.25
$227.70
Ruland DCSK36-25MM-3/4"-A, 25mm x 3/4" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCSK36-25MM-5/8\"-A
DCSK36-25MM-5/8"-A
As low as
$155.25
$227.70
Ruland DCSK36-25MM-5/8"-A, 25mm x 5/8" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
DCSK36-25MM-7/8\"-A
DCSK36-25MM-7/8"-A
As low as
$155.25
$227.70
Ruland DCSK36-25MM-7/8"-A, 25mm x 7/8" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 2.313" (58.8mm) Length
Download CAD File:
MDCS19-7-4-A
MDCS19-7-4-A
As low as
$55.90
$81.99
Ruland MDCS19-7-4-A, 7mm x 4mm Single Disc Coupling, Aluminum, Clamp Style, 19.1mm OD, 23.0mm Length
Download CAD File:
MDCS19-7-5-A
MDCS19-7-5-A
As low as
$55.90
$81.99
Ruland MDCS19-7-5-A, 7mm x 5mm Single Disc Coupling, Aluminum, Clamp Style, 19.1mm OD, 23.0mm Length
Download CAD File:
MDCS19-7-6-A
MDCS19-7-6-A
As low as
$55.90
$81.99
Ruland MDCS19-7-6-A, 7mm x 6mm Single Disc Coupling, Aluminum, Clamp Style, 19.1mm OD, 23.0mm Length
Download CAD File:
MDCS19-7-7-A
MDCS19-7-7-A
As low as
$55.90
$81.99
Ruland MDCS19-7-7-A, 7mm x 7mm Single Disc Coupling, Aluminum, Clamp Style, 19.1mm OD, 23.0mm Length
Download CAD File:
MDCS25-7-6-A
MDCS25-7-6-A
As low as
$62.13
$91.12
Ruland MDCS25-7-6-A, 7mm x 6mm Single Disc Coupling, Aluminum, Clamp Style, 25.4mm OD, 26.2mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
DCS12-7MM-1/4"-A
7 mm
0.2500 in
0.906 in (23.0 mm)
Aluminum
0.750 in (19.1 mm)
10,000 RPM
DCS12-7MM-3/16"-A
7 mm
0.1875 in
0.906 in (23.0 mm)
Aluminum
0.750 in (19.1 mm)
10,000 RPM
DCS16-7MM-1/4"-A
7 mm
0.2500 in
1.031 in (26.2 mm)
Aluminum
1.000 in (25.4 mm)
10,000 RPM
DCS32-25MM-1/2"-A
25 mm
0.5000 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCS32-25MM-3/4"-A
25 mm
0.7500 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCS32-25MM-5/8"-A
25 mm
0.6250 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCS32-25MM-7/8"-A
25 mm
0.8750 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCS36-25MM-1/2"-A
25 mm
0.5000 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCS36-25MM-3/4"-A
25 mm
0.7500 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCS36-25MM-5/8"-A
25 mm
0.6250 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCS36-25MM-7/8"-A
25 mm
0.8750 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCSK32-25MM-1/2"-A
25 mm
0.5000 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCSK32-25MM-3/4"-A
25 mm
0.7500 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCSK32-25MM-5/8"-A
25 mm
0.6250 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCSK32-25MM-7/8"-A
25 mm
0.8750 in
1.813 in (46.1 mm)
Aluminum
2.000 in (50.8 mm)
10,000 RPM
DCSK36-25MM-1/2"-A
25 mm
0.5000 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCSK36-25MM-3/4"-A
25 mm
0.7500 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCSK36-25MM-5/8"-A
25 mm
0.6250 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCSK36-25MM-7/8"-A
25 mm
0.8750 in
2.313 in (58.8 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
MDCS19-7-4-A
7 mm
4 mm
23.0 mm
Aluminum
19.1 mm
10,000 RPM
MDCS19-7-5-A
7 mm
5 mm
23.0 mm
Aluminum
19.1 mm
10,000 RPM
MDCS19-7-6-A
7 mm
6 mm
23.0 mm
Aluminum
19.1 mm
10,000 RPM
MDCS19-7-7-A
7 mm
7 mm
23.0 mm
Aluminum
19.1 mm
10,000 RPM
MDCS25-7-6-A
7 mm
6 mm
26.2 mm
Aluminum
25.4 mm
10,000 RPM
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Bore (B1)
25 mm
Bore (B1)
7 mm
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