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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:
MWS15-1/8\"-1/8\"-SS
MWS15-1/8"-1/8"-SS
As low as
$71.28
$104.54
Ruland MWS15-1/8"-1/8"-SS, 1/8" x 1/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-1/8\"-3MM-SS
MWS15-1/8"-3MM-SS
As low as
$71.28
$104.54
Ruland MWS15-1/8"-3MM-SS, 1/8" x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-3-3-SS
MWS15-3-3-SS
As low as
$71.28
$104.54
Ruland MWS15-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
Download CAD File:
MWS15-3/16\"-1/8\"-SS
MWS15-3/16"-1/8"-SS
As low as
$71.28
$104.54
Ruland MWS15-3/16"-1/8"-SS, 3/16" x 1/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-3/16\"-3/16\"-SS
MWS15-3/16"-3/16"-SS
As low as
$71.28
$104.54
Ruland MWS15-3/16"-3/16"-SS, 3/16" x 3/16" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-3/16\"-3MM-SS
MWS15-3/16"-3MM-SS
As low as
$71.28
$104.54
Ruland MWS15-3/16"-3MM-SS, 3/16" x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-3/16\"-4MM-SS
MWS15-3/16"-4MM-SS
As low as
$71.28
$104.54
Ruland MWS15-3/16"-4MM-SS, 3/16" x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-4-3-SS
MWS15-4-3-SS
As low as
$71.28
$104.54
Ruland MWS15-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
Download CAD File:
MWS15-4-4-SS
MWS15-4-4-SS
As low as
$71.28
$104.54
Ruland MWS15-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
Download CAD File:
MWS15-4MM-1/8\"-SS
MWS15-4MM-1/8"-SS
As low as
$71.28
$104.54
Ruland MWS15-4MM-1/8"-SS, 4mm x 1/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-5-3-SS
MWS15-5-3-SS
As low as
$71.28
$104.54
Ruland MWS15-5-3-SS, 5mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
Download CAD File:
MWS15-5-4-SS
MWS15-5-4-SS
As low as
$71.28
$104.54
Ruland MWS15-5-4-SS, 5mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
Download CAD File:
MWS15-5-5-SS
MWS15-5-5-SS
As low as
$71.28
$104.54
Ruland MWS15-5-5-SS, 5mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
Download CAD File:
MWS15-5MM-1/8\"-SS
MWS15-5MM-1/8"-SS
As low as
$71.28
$104.54
Ruland MWS15-5MM-1/8"-SS, 5mm x 1/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS15-5MM-3/16\"-SS
MWS15-5MM-3/16"-SS
As low as
$71.28
$104.54
Ruland MWS15-5MM-3/16"-SS, 5mm x 3/16" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.590" (15.0mm) OD, 0.787" (20.0mm) Length
MWS20-1/4"-6MM-SS
As low as
$78.92
$115.75
Ruland MWS20-1/4"-6MM-SS, 1/4" x 6mm Four Beam Coupling, Aluminum, Set Screw Style, 0.787" (20.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS20-3/16\"-3/16\"-SS
MWS20-3/16"-3/16"-SS
As low as
$78.92
$115.75
Ruland MWS20-3/16"-3/16"-SS, 3/16" x 3/16" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.787" (20.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS20-3/16\"-4MM-SS
MWS20-3/16"-4MM-SS
As low as
$78.92
$115.75
Ruland MWS20-3/16"-4MM-SS, 3/16" x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.787" (20.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS20-4-4-SS
MWS20-4-4-SS
As low as
$78.92
$115.75
Ruland MWS20-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
Download CAD File:
MWS20-5-4-SS
MWS20-5-4-SS
As low as
$78.92
$115.75
Ruland MWS20-5-4-SS, 5mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
Download CAD File:
MWS20-5-5-SS
MWS20-5-5-SS
As low as
$78.92
$115.75
Ruland MWS20-5-5-SS, 5mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
Download CAD File:
MWS20-5MM-3/16\"-SS
MWS20-5MM-3/16"-SS
As low as
$78.92
$115.75
Ruland MWS20-5MM-3/16"-SS, 5mm x 3/16" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.787" (20.0mm) OD, 0.787" (20.0mm) Length
Download CAD File:
MWS20-6-4-SS
MWS20-6-4-SS
As low as
$78.92
$115.75
Ruland MWS20-6-4-SS, 6mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
Download CAD File:
MWS20-6-5-SS
MWS20-6-5-SS
As low as
$78.92
$115.75
Ruland MWS20-6-5-SS, 6mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
MWS15-1/8"-1/8"-SS
0.1250 in
0.1250 in
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-1/8"-3MM-SS
0.1250 in
3 mm
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-3-3-SS
3 mm
3 mm
20.0 mm
303 Stainless Steel
15.0 mm
6,000 RPM
MWS15-3/16"-1/8"-SS
0.1875 in
0.1250 in
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-3/16"-3/16"-SS
0.1875 in
0.1875 in
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-3/16"-3MM-SS
0.1875 in
3 mm
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-3/16"-4MM-SS
0.1875 in
4 mm
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-4-3-SS
4 mm
3 mm
20.0 mm
303 Stainless Steel
15.0 mm
6,000 RPM
MWS15-4-4-SS
4 mm
4 mm
20.0 mm
303 Stainless Steel
15.0 mm
6,000 RPM
MWS15-4MM-1/8"-SS
4 mm
0.1250 in
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-5-3-SS
5 mm
3 mm
20.0 mm
303 Stainless Steel
15.0 mm
6,000 RPM
MWS15-5-4-SS
5 mm
4 mm
20.0 mm
303 Stainless Steel
15.0 mm
6,000 RPM
MWS15-5-5-SS
5 mm
5 mm
20.0 mm
303 Stainless Steel
15.0 mm
6,000 RPM
MWS15-5MM-1/8"-SS
5 mm
0.1250 in
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS15-5MM-3/16"-SS
5 mm
0.1875 in
0.787 in (20.0 mm)
303 Stainless Steel
0.590 in (15.0 mm)
6,000 RPM
MWS20-1/4"-6MM-SS
0.2500 in
6 mm
0.787 in (20.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWS20-3/16"-3/16"-SS
0.1875 in
0.1875 in
0.787 in (20.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWS20-3/16"-4MM-SS
0.1875 in
4 mm
0.787 in (20.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWS20-4-4-SS
4 mm
4 mm
20.0 mm
303 Stainless Steel
20.0 mm
6,000 RPM
MWS20-5-4-SS
5 mm
4 mm
20.0 mm
303 Stainless Steel
20.0 mm
6,000 RPM
MWS20-5-5-SS
5 mm
5 mm
20.0 mm
303 Stainless Steel
20.0 mm
6,000 RPM
MWS20-5MM-3/16"-SS
5 mm
0.1875 in
0.787 in (20.0 mm)
303 Stainless Steel
0.787 in (20.0 mm)
6,000 RPM
MWS20-6-4-SS
6 mm
4 mm
20.0 mm
303 Stainless Steel
20.0 mm
6,000 RPM
MWS20-6-5-SS
6 mm
5 mm
20.0 mm
303 Stainless Steel
20.0 mm
6,000 RPM
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