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MW-Series Four Beam Couplings
MW-series four beam couplings differ from the P-series because they have pure metric outer diameter and length dimensions. Like the P-series, they are designed for precision applications, such as encoders and tachometers that use delicate components. The small bearings on these components make low radial forces essential to longevity and continued high performance. They provide extra flexibility to yield reduced bearing loads. These flexible couplings are shorter than the F-series six beam couplings and conform to industry standard lengths, fitting into confined spaces and allowing for easy retrofits in existing equipment. At the same time, the helical cut pattern continues to provide excellent torque capabilities and low wind-up. MW-series beam couplings are manufactured from a single piece of 7075 aluminum for lightweight and low inertia or 303 stainless steel for increased torque capabilities.
Features Aluminum
Extra flexible with low bearing loads
Lightweight for low inertia
Temperature range: -40°F to 225°F
Stainless Steel
Flexible with low bearing loads
Corrosion resistant
Temperature range: -40°F to 350°F
Multiple beam cuts improve parallel misalignment capabilities
Zero backlash
Constant velocity
RoHS3 and REACH Compliant
Maximum speed: 6,000 RPM
How to Specify Part numbers are in the following format with numbers representing sixteenths of an inch or millimeters:
Products
Download CAD File:
MWC20-1/4\"-1/4\"-A
MWC20-1/4"-1/4"-A
As low as
$37.91
$55.60
Ruland MWC20-1/4"-1/4"-A, 1/4" x 1/4" Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-1/4\"-SS
MWC20-1/4"-1/4"-SS
As low as
$87.75
$128.69
Ruland MWC20-1/4"-1/4"-SS, 1/4" x 1/4" Four Beam Coupling, Stainless Steel, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-4MM-A
MWC20-1/4"-4MM-A
As low as
$37.91
$55.60
Ruland MWC20-1/4"-4MM-A, 1/4" x 4mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-4MM-SS
MWC20-1/4"-4MM-SS
As low as
$87.75
$128.69
Ruland MWC20-1/4"-4MM-SS, 1/4" x 4mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-5MM-A
MWC20-1/4"-5MM-A
As low as
$37.91
$55.60
Ruland MWC20-1/4"-5MM-A, 1/4" x 5mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-5MM-SS
MWC20-1/4"-5MM-SS
As low as
$87.75
$128.69
Ruland MWC20-1/4"-5MM-SS, 1/4" x 5mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-6MM-A
MWC20-1/4"-6MM-A
As low as
$37.91
$55.60
Ruland MWC20-1/4"-6MM-A, 1/4" x 6mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-1/4\"-6MM-SS
MWC20-1/4"-6MM-SS
As low as
$87.75
$128.69
Ruland MWC20-1/4"-6MM-SS, 1/4" x 6mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-3/16\"-3/16\"-A
MWC20-3/16"-3/16"-A
As low as
$37.91
$55.60
Ruland MWC20-3/16"-3/16"-A, 3/16" x 3/16" Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-3/16\"-3/16\"-SS
MWC20-3/16"-3/16"-SS
As low as
$87.75
$128.69
Ruland MWC20-3/16"-3/16"-SS, 3/16" x 3/16" Four Beam Coupling, Stainless Steel, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-3/16\"-4MM-A
MWC20-3/16"-4MM-A
As low as
$37.91
$55.60
Ruland MWC20-3/16"-4MM-A, 3/16" x 4mm Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-3/16\"-4MM-SS
MWC20-3/16"-4MM-SS
As low as
$87.75
$128.69
Ruland MWC20-3/16"-4MM-SS, 3/16" x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-5MM-3/16\"-A
MWC20-5MM-3/16"-A
As low as
$37.91
$55.60
Ruland MWC20-5MM-3/16"-A, 5mm x 3/16" Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-5MM-3/16\"-SS
MWC20-5MM-3/16"-SS
As low as
$87.75
$128.69
Ruland MWC20-5MM-3/16"-SS, 5mm x 3/16" Four Beam Coupling, Stainless Steel, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-6MM-3/16\"-A
MWC20-6MM-3/16"-A
As low as
$37.91
$55.60
Ruland MWC20-6MM-3/16"-A, 6mm x 3/16" Four Beam Coupling, Aluminum, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWC20-6MM-3/16\"-SS
MWC20-6MM-3/16"-SS
As low as
$87.75
$128.69
Ruland MWC20-6MM-3/16"-SS, 6mm x 3/16" Four Beam Coupling, Stainless Steel, Clamp Style, 0.787" (20.0mm) OD, 1.102" (28.0mm) Length
Download CAD File:
MWS25-1/4\"-1/4\"-A
MWS25-1/4"-1/4"-A
As low as
$36.20
$53.09
Ruland MWS25-1/4"-1/4"-A, 1/4" x 1/4" Four Beam Coupling, Aluminum, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-1/4\"-1/4\"-SS
MWS25-1/4"-1/4"-SS
As low as
$89.84
$131.76
Ruland MWS25-1/4"-1/4"-SS, 1/4" x 1/4" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-1/4\"-6MM-A
MWS25-1/4"-6MM-A
As low as
$36.20
$53.09
Ruland MWS25-1/4"-6MM-A, 1/4" x 6mm Four Beam Coupling, Aluminum, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-1/4\"-6MM-SS
MWS25-1/4"-6MM-SS
As low as
$89.84
$131.76
Ruland MWS25-1/4"-6MM-SS, 1/4" x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-10MM-1/4\"-A
MWS25-10MM-1/4"-A
As low as
$36.20
$53.09
Ruland MWS25-10MM-1/4"-A, 10mm x 1/4" Four Beam Coupling, Aluminum, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-10MM-1/4\"-SS
MWS25-10MM-1/4"-SS
As low as
$89.84
$131.76
Ruland MWS25-10MM-1/4"-SS, 10mm x 1/4" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-10MM-3/8\"-A
MWS25-10MM-3/8"-A
As low as
$36.20
$53.09
Ruland MWS25-10MM-3/8"-A, 10mm x 3/8" Four Beam Coupling, Aluminum, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Download CAD File:
MWS25-10MM-3/8\"-SS
MWS25-10MM-3/8"-SS
As low as
$89.84
$131.76
Ruland MWS25-10MM-3/8"-SS, 10mm x 3/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
MWC20-1/4"-1/4"-A
0.2500 in
0.2500 in
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-1/4"-SS
0.2500 in
0.2500 in
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-4MM-A
0.2500 in
4 mm
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-4MM-SS
0.2500 in
4 mm
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-5MM-A
0.2500 in
5 mm
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-5MM-SS
0.2500 in
5 mm
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-6MM-A
0.2500 in
6 mm
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-1/4"-6MM-SS
0.2500 in
6 mm
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-3/16"-3/16"-A
0.1875 in
0.1875 in
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-3/16"-3/16"-SS
0.1875 in
0.1875 in
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-3/16"-4MM-A
0.1875 in
4 mm
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-3/16"-4MM-SS
0.1875 in
4 mm
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-5MM-3/16"-A
5 mm
0.1875 in
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-5MM-3/16"-SS
5 mm
0.1875 in
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWC20-6MM-3/16"-A
6 mm
0.1875 in
1.102 in (28.0 mm)
Aluminum
0.787 in (20.0 mm)
6,000 RPM
MWC20-6MM-3/16"-SS
6 mm
0.1875 in
1.102 in (28.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWS25-1/4"-1/4"-A
0.2500 in
0.2500 in
0.945 in (24.0 mm)
Aluminum
0.984 in (25.0 mm)
6,000 RPM
MWS25-1/4"-1/4"-SS
0.2500 in
0.2500 in
0.945 in (24.0 mm)
303 Stainless Steel
0.984 in (25.0 mm)
6,000 RPM
MWS25-1/4"-6MM-A
0.2500 in
6 mm
0.945 in (24.0 mm)
Aluminum
0.984 in (25.0 mm)
6,000 RPM
MWS25-1/4"-6MM-SS
0.2500 in
6 mm
0.945 in (24.0 mm)
303 Stainless Steel
0.984 in (25.0 mm)
6,000 RPM
MWS25-10MM-1/4"-A
10 mm
0.2500 in
0.945 in (24.0 mm)
Aluminum
0.984 in (25.0 mm)
6,000 RPM
MWS25-10MM-1/4"-SS
10 mm
0.2500 in
0.945 in (24.0 mm)
303 Stainless Steel
0.984 in (25.0 mm)
6,000 RPM
MWS25-10MM-3/8"-A
10 mm
0.3750 in
0.945 in (24.0 mm)
Aluminum
0.984 in (25.0 mm)
6,000 RPM
MWS25-10MM-3/8"-SS
10 mm
0.3750 in
0.945 in (24.0 mm)
303 Stainless Steel
0.984 in (25.0 mm)
6,000 RPM
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Length (L)
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0.945 in (24.0 mm)
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