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Disc Couplings for Motors
Ruland zero-backlash disc couplings have high torque and torsional stiffness capabilities and a balanced design. They are manufactured in single and double disc styles. Single disc couplings are comprised of anodized aluminum hubs and stainless steel disc springs. This style is good for space constrained applications, but cannot support parallel misalignment. Double disc couplings are comprised of anodized aluminum hubs, an anodized aluminum or electrically isolating acetal spacer, and stainless steel disc springs. The double disc style can accommodate greater amounts of all types of misalignment, including parallel misalignment.
As lightweight, high-performance couplings, disc couplings have comparable performance characteristics to bellows couplings. They have slightly less torsional stiffness and torque capacity than bellows couplings, but offer better misalignment accommodation. They are well-suited for servo motors that will be used for precise positioning applications such as those found in semiconductor, solar, and robotics. Ruland disc couplings are manufactured in clamp or set screw style, with or without keyways, in bores sizes from 1/8” to 1-1/4” and 3mm to 32mm.
Products
Download CAD File:
DCDK36-1 1/4\"-14MM-A
DCDK36-1 1/4"-14MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-14MM-A, 1 1/4" x 14mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-15MM-A
DCDK36-1 1/4"-15MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-15MM-A, 1 1/4" x 15mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-16MM-A
DCDK36-1 1/4"-16MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-16MM-A, 1 1/4" x 16mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-17MM-A
DCDK36-1 1/4"-17MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-17MM-A, 1 1/4" x 17mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-18MM-A
DCDK36-1 1/4"-18MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-18MM-A, 1 1/4" x 18mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-19MM-A
DCDK36-1 1/4"-19MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-19MM-A, 1 1/4" x 19mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-20MM-A
DCDK36-1 1/4"-20MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-20MM-A, 1 1/4" x 20mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-22MM-A
DCDK36-1 1/4"-22MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-22MM-A, 1 1/4" x 22mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-24MM-A
DCDK36-1 1/4"-24MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-24MM-A, 1 1/4" x 24mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-25MM-A
DCDK36-1 1/4"-25MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-25MM-A, 1 1/4" x 25mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-28MM-A
DCDK36-1 1/4"-28MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-28MM-A, 1 1/4" x 28mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/4\"-30MM-A
DCDK36-1 1/4"-30MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/4"-30MM-A, 1 1/4" x 30mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-14MM-A
DCDK36-1 1/8"-14MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-14MM-A, 1 1/8" x 14mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-15MM-A
DCDK36-1 1/8"-15MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-15MM-A, 1 1/8" x 15mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-16MM-A
DCDK36-1 1/8"-16MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-16MM-A, 1 1/8" x 16mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-17MM-A
DCDK36-1 1/8"-17MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-17MM-A, 1 1/8" x 17mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-18MM-A
DCDK36-1 1/8"-18MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-18MM-A, 1 1/8" x 18mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-19MM-A
DCDK36-1 1/8"-19MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-19MM-A, 1 1/8" x 19mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-20MM-A
DCDK36-1 1/8"-20MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-20MM-A, 1 1/8" x 20mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-22MM-A
DCDK36-1 1/8"-22MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-22MM-A, 1 1/8" x 22mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-24MM-A
DCDK36-1 1/8"-24MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-24MM-A, 1 1/8" x 24mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-25MM-A
DCDK36-1 1/8"-25MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-25MM-A, 1 1/8" x 25mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1 1/8\"-28MM-A
DCDK36-1 1/8"-28MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1 1/8"-28MM-A, 1 1/8" x 28mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Download CAD File:
DCDK36-1\"-14MM-A
DCDK36-1"-14MM-A
As low as
$185.23
$271.67
Ruland DCDK36-1"-14MM-A, 1" x 14mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2mm) OD, 3.080" (78.2mm) Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
DCDK36-1 1/4"-14MM-A
1.2500 in
14 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-15MM-A
1.2500 in
15 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-16MM-A
1.2500 in
16 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-17MM-A
1.2500 in
17 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-18MM-A
1.2500 in
18 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-19MM-A
1.2500 in
19 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-20MM-A
1.2500 in
20 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-22MM-A
1.2500 in
22 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-24MM-A
1.2500 in
24 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 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
DCDK36-1 1/4"-28MM-A
1.2500 in
28 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/4"-30MM-A
1.2500 in
30 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-14MM-A
1.1250 in
14 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-15MM-A
1.1250 in
15 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-16MM-A
1.1250 in
16 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-17MM-A
1.1250 in
17 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-18MM-A
1.1250 in
18 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-19MM-A
1.1250 in
19 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-20MM-A
1.1250 in
20 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-22MM-A
1.1250 in
22 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 1/8"-24MM-A
1.1250 in
24 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1 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
DCDK36-1 1/8"-28MM-A
1.1250 in
28 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
DCDK36-1"-14MM-A
1.0000 in
14 mm
3.080 in (78.2 mm)
Aluminum
2.250 in (57.2 mm)
10,000 RPM
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