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P-Series Four Beam Couplings
P-series beam couplings are designed specifically 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. P-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:
Products
Download CAD File:
PCMR25-10-10-A
PCMR25-10-10-A
As low as
$40.03
$58.71
Ruland PCMR25-10-10-A, 10mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-10-6-A
PCMR25-10-6-A
As low as
$40.03
$58.71
Ruland PCMR25-10-6-A, 10mm x 6mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-10-7-A
PCMR25-10-7-A
As low as
$40.03
$58.71
Ruland PCMR25-10-7-A, 10mm x 7mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-10-8-A
PCMR25-10-8-A
As low as
$40.03
$58.71
Ruland PCMR25-10-8-A, 10mm x 8mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-10-9-A
PCMR25-10-9-A
As low as
$40.03
$58.71
Ruland PCMR25-10-9-A, 10mm x 9mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-9-6-A
PCMR25-9-6-A
As low as
$40.03
$58.71
Ruland PCMR25-9-6-A, 9mm x 6mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-9-7-A
PCMR25-9-7-A
As low as
$40.03
$58.71
Ruland PCMR25-9-7-A, 9mm x 7mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-9-8-A
PCMR25-9-8-A
As low as
$40.03
$58.71
Ruland PCMR25-9-8-A, 9mm x 8mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR25-9-9-A
PCMR25-9-9-A
As low as
$40.03
$58.71
Ruland PCMR25-9-9-A, 9mm x 9mm Four Beam Coupling, Aluminum, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCR18-1/2\"-10MM-A
PCR18-1/2"-10MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-10MM-A, 1/2" x 10mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR18-1/2\"-11MM-A
PCR18-1/2"-11MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-11MM-A, 1/2" x 11mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR18-1/2\"-12MM-A
PCR18-1/2"-12MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-12MM-A, 1/2" x 12mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR18-1/2\"-6MM-A
PCR18-1/2"-6MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-6MM-A, 1/2" x 6mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR18-1/2\"-7MM-A
PCR18-1/2"-7MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-7MM-A, 1/2" x 7mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR18-1/2\"-8MM-A
PCR18-1/2"-8MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-8MM-A, 1/2" x 8mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR18-1/2\"-9MM-A
PCR18-1/2"-9MM-A
As low as
$47.49
$69.65
Ruland PCR18-1/2"-9MM-A, 1/2" x 9mm Four Beam Coupling, Aluminum, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PSMR25-10-10-A
PSMR25-10-10-A
As low as
$34.03
$49.92
Ruland PSMR25-10-10-A, 10mm x 10mm Four Beam Coupling, Aluminum, Set Screw Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PSMR25-10-6-A
PSMR25-10-6-A
As low as
$34.03
$49.92
Ruland PSMR25-10-6-A, 10mm x 6mm Four Beam Coupling, Aluminum, Set Screw Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PSMR25-10-7-A
PSMR25-10-7-A
As low as
$34.03
$49.92
Ruland PSMR25-10-7-A, 10mm x 7mm Four Beam Coupling, Aluminum, Set Screw Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PSMR25-10-8-A
PSMR25-10-8-A
As low as
$34.03
$49.92
Ruland PSMR25-10-8-A, 10mm x 8mm Four Beam Coupling, Aluminum, Set Screw Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PSMR25-10-9-A
PSMR25-10-9-A
As low as
$34.03
$49.92
Ruland PSMR25-10-9-A, 10mm x 9mm Four Beam Coupling, Aluminum, Set Screw Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PSR18-1/2\"-10MM-A
PSR18-1/2"-10MM-A
As low as
$41.35
$60.64
Ruland PSR18-1/2"-10MM-A, 1/2" x 10mm Four Beam Coupling, Aluminum, Set Screw Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PSR18-1/2\"-11MM-A
PSR18-1/2"-11MM-A
As low as
$41.35
$60.64
Ruland PSR18-1/2"-11MM-A, 1/2" x 11mm Four Beam Coupling, Aluminum, Set Screw Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PSR18-1/2\"-12MM-A
PSR18-1/2"-12MM-A
As low as
$41.35
$60.64
Ruland PSR18-1/2"-12MM-A, 1/2" x 12mm Four Beam Coupling, Aluminum, Set Screw Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
PCMR25-10-10-A
10 mm
10 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-10-6-A
10 mm
6 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-10-7-A
10 mm
7 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-10-8-A
10 mm
8 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-10-9-A
10 mm
9 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-9-6-A
9 mm
6 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-9-7-A
9 mm
7 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-9-8-A
9 mm
8 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCMR25-9-9-A
9 mm
9 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PCR18-1/2"-10MM-A
0.5000 in
10 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PCR18-1/2"-11MM-A
0.5000 in
11 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PCR18-1/2"-12MM-A
0.5000 in
12 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PCR18-1/2"-6MM-A
0.5000 in
6 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PCR18-1/2"-7MM-A
0.5000 in
7 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PCR18-1/2"-8MM-A
0.5000 in
8 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PCR18-1/2"-9MM-A
0.5000 in
9 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PSMR25-10-10-A
10 mm
10 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PSMR25-10-6-A
10 mm
6 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PSMR25-10-7-A
10 mm
7 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PSMR25-10-8-A
10 mm
8 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PSMR25-10-9-A
10 mm
9 mm
31.8 mm
Aluminum
25.4 mm
6,000 RPM
PSR18-1/2"-10MM-A
0.5000 in
10 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PSR18-1/2"-11MM-A
0.5000 in
11 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
PSR18-1/2"-12MM-A
0.5000 in
12 mm
1.500 in (38.1 mm)
Aluminum
1.125 in (28.6 mm)
6,000 RPM
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Now Shopping by
Static Torque
34 lb-in (3.84 Nm)
Static Torque
3.39 Nm
Shopping Options
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