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Electrically Isolating Disc Coupling
Ruland electrically isolating double disc couplings are comprised of two anodized aluminum hubs, two sets of stainless steel disc springs, and an acetal center spacer. This design allows the sets of disc springs to bend independent of each other to accommodate all forms of misalignment, including parallel. 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 30mm.
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 150°F
How to Specify Part numbers are in the following format with numbers representing sixteenths of an inch or millimeters:
Products
Download CAD File:
MDCDE15-3-3-A
MDCDE15-3-3-A
As low as
$98.19
$144.01
Ruland MDCDE15-3-3-A, 3mm x 3mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-4-3-A
MDCDE15-4-3-A
As low as
$98.19
$144.01
Ruland MDCDE15-4-3-A, 4mm x 3mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-4-4-A
MDCDE15-4-4-A
As low as
$98.19
$144.01
Ruland MDCDE15-4-4-A, 4mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-5-3-A
MDCDE15-5-3-A
As low as
$98.19
$144.01
Ruland MDCDE15-5-3-A, 5mm x 3mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-5-4-A
MDCDE15-5-4-A
As low as
$98.19
$144.01
Ruland MDCDE15-5-4-A, 5mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-5-5-A
MDCDE15-5-5-A
As low as
$98.19
$144.01
Ruland MDCDE15-5-5-A, 5mm x 5mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-6-3-A
MDCDE15-6-3-A
As low as
$98.19
$144.01
Ruland MDCDE15-6-3-A, 6mm x 3mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-6-4-A
MDCDE15-6-4-A
As low as
$98.19
$144.01
Ruland MDCDE15-6-4-A, 6mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-6-5-A
MDCDE15-6-5-A
As low as
$98.19
$144.01
Ruland MDCDE15-6-5-A, 6mm x 5mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE15-6-6-A
MDCDE15-6-6-A
As low as
$98.19
$144.01
Ruland MDCDE15-6-6-A, 6mm x 6mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 15.0mm OD, 23.8mm Length
Download CAD File:
MDCDE19-4-4-A
MDCDE19-4-4-A
As low as
$84.46
$123.87
Ruland MDCDE19-4-4-A, 4mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-5-4-A
MDCDE19-5-4-A
As low as
$84.46
$123.87
Ruland MDCDE19-5-4-A, 5mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-5-5-A
MDCDE19-5-5-A
As low as
$84.46
$123.87
Ruland MDCDE19-5-5-A, 5mm x 5mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-6-4-A
MDCDE19-6-4-A
As low as
$84.46
$123.87
Ruland MDCDE19-6-4-A, 6mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-6-5-A
MDCDE19-6-5-A
As low as
$84.46
$123.87
Ruland MDCDE19-6-5-A, 6mm x 5mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-6-6-A
MDCDE19-6-6-A
As low as
$84.46
$123.87
Ruland MDCDE19-6-6-A, 6mm x 6mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-8-4-A
MDCDE19-8-4-A
As low as
$84.46
$123.87
Ruland MDCDE19-8-4-A, 8mm x 4mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-8-5-A
MDCDE19-8-5-A
As low as
$84.46
$123.87
Ruland MDCDE19-8-5-A, 8mm x 5mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-8-6-A
MDCDE19-8-6-A
As low as
$84.46
$123.87
Ruland MDCDE19-8-6-A, 8mm x 6mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE19-8-8-A
MDCDE19-8-8-A
As low as
$84.46
$123.87
Ruland MDCDE19-8-8-A, 8mm x 8mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 19.1mm OD, 30.2mm Length
Download CAD File:
MDCDE25-10-10-A
MDCDE25-10-10-A
As low as
$92.91
$136.26
Ruland MDCDE25-10-10-A, 10mm x 10mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 25.4mm OD, 34.9mm Length
Download CAD File:
MDCDE25-10-6-A
MDCDE25-10-6-A
As low as
$92.91
$136.26
Ruland MDCDE25-10-6-A, 10mm x 6mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 25.4mm OD, 34.9mm Length
Download CAD File:
MDCDE25-10-8-A
MDCDE25-10-8-A
As low as
$92.91
$136.26
Ruland MDCDE25-10-8-A, 10mm x 8mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 25.4mm OD, 34.9mm Length
Download CAD File:
MDCDE25-12-10-A
MDCDE25-12-10-A
As low as
$92.91
$136.26
Ruland MDCDE25-12-10-A, 12mm x 10mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 25.4mm OD, 34.9mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
MDCDE15-3-3-A
3 mm
3 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-4-3-A
4 mm
3 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-4-4-A
4 mm
4 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-5-3-A
5 mm
3 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-5-4-A
5 mm
4 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-5-5-A
5 mm
5 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-6-3-A
6 mm
3 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-6-4-A
6 mm
4 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-6-5-A
6 mm
5 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE15-6-6-A
6 mm
6 mm
23.8 mm
Aluminum
15.0 mm
10,000 RPM
MDCDE19-4-4-A
4 mm
4 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-5-4-A
5 mm
4 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-5-5-A
5 mm
5 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-6-4-A
6 mm
4 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-6-5-A
6 mm
5 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-6-6-A
6 mm
6 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-8-4-A
8 mm
4 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-8-5-A
8 mm
5 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-8-6-A
8 mm
6 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE19-8-8-A
8 mm
8 mm
30.2 mm
Aluminum
19.1 mm
10,000 RPM
MDCDE25-10-10-A
10 mm
10 mm
34.9 mm
Aluminum
25.4 mm
10,000 RPM
MDCDE25-10-6-A
10 mm
6 mm
34.9 mm
Aluminum
25.4 mm
10,000 RPM
MDCDE25-10-8-A
10 mm
8 mm
34.9 mm
Aluminum
25.4 mm
10,000 RPM
MDCDE25-12-10-A
12 mm
10 mm
34.9 mm
Aluminum
25.4 mm
10,000 RPM
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