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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
Products
Download CAD File:
PCMR13-4-4-A
PCMR13-4-4-A
As low as
$33.78
$49.54
Ruland PCMR13-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 12.7mm OD, 19.1mm Length
Download CAD File:
PCMR13-4-4-SS
PCMR13-4-4-SS
As low as
$88.31
$129.52
Ruland PCMR13-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 12.7mm OD, 19.1mm Length
Download CAD File:
PCMR16-4-3-A
PCMR16-4-3-A
As low as
$32.53
$47.70
Ruland PCMR16-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PCMR16-4-3-SS
PCMR16-4-3-SS
As low as
$89.78
$131.68
Ruland PCMR16-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PCMR16-4-4-A
PCMR16-4-4-A
As low as
$32.53
$47.70
Ruland PCMR16-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PCMR16-4-4-SS
PCMR16-4-4-SS
As low as
$89.78
$131.68
Ruland PCMR16-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PCMR19-4-3-A
PCMR19-4-3-A
As low as
$33.27
$48.79
Ruland PCMR19-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 22.9mm Length
Download CAD File:
PCMR19-4-3-SS
PCMR19-4-3-SS
As low as
$83.24
$122.08
Ruland PCMR19-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 22.9mm Length
Download CAD File:
PCMR19-4-4-A
PCMR19-4-4-A
As low as
$33.27
$48.79
Ruland PCMR19-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 22.9mm Length
Download CAD File:
PCMR19-4-4-SS
PCMR19-4-4-SS
As low as
$83.24
$122.08
Ruland PCMR19-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 22.9mm Length
Download CAD File:
PCR10-4MM-1/8\"-A
PCR10-4MM-1/8"-A
As low as
$32.53
$47.70
Ruland PCR10-4MM-1/8"-A, 4mm x 1/8" Four Beam Coupling, Aluminum, Clamp Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PCR10-4MM-1/8\"-SS
PCR10-4MM-1/8"-SS
As low as
$89.78
$131.68
Ruland PCR10-4MM-1/8"-SS, 4mm x 1/8" Four Beam Coupling, Stainless Steel, Clamp Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PCR10-4MM-5/32\"-A
PCR10-4MM-5/32"-A
As low as
$32.53
$47.70
Ruland PCR10-4MM-5/32"-A, 4mm x 5/32" Four Beam Coupling, Aluminum, Clamp Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PCR10-4MM-5/32\"-SS
PCR10-4MM-5/32"-SS
As low as
$89.78
$131.68
Ruland PCR10-4MM-5/32"-SS, 4mm x 5/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PCR12-4MM-1/8\"-A
PCR12-4MM-1/8"-A
As low as
$33.27
$48.79
Ruland PCR12-4MM-1/8"-A, 4mm x 1/8" Four Beam Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PCR12-4MM-1/8\"-SS
PCR12-4MM-1/8"-SS
As low as
$83.24
$122.08
Ruland PCR12-4MM-1/8"-SS, 4mm x 1/8" Four Beam Coupling, Stainless Steel, Clamp Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PCR12-4MM-5/32\"-A
PCR12-4MM-5/32"-A
As low as
$33.27
$48.79
Ruland PCR12-4MM-5/32"-A, 4mm x 5/32" Four Beam Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PCR12-4MM-5/32\"-SS
PCR12-4MM-5/32"-SS
As low as
$83.24
$122.08
Ruland PCR12-4MM-5/32"-SS, 4mm x 5/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PSMR16-4-3-A
PSMR16-4-3-A
As low as
$27.28
$40.01
Ruland PSMR16-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PSMR16-4-3-SS
PSMR16-4-3-SS
As low as
$80.07
$117.44
Ruland PSMR16-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PSMR16-4-4-A
PSMR16-4-4-A
As low as
$27.28
$40.01
Ruland PSMR16-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PSMR16-4-4-SS
PSMR16-4-4-SS
As low as
$80.07
$117.44
Ruland PSMR16-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
Download CAD File:
PSMR19-4-3-A
PSMR19-4-3-A
As low as
$28.58
$41.91
Ruland PSMR19-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 22.9mm Length
Download CAD File:
PSMR19-4-3-SS
PSMR19-4-3-SS
As low as
$72.98
$107.04
Ruland PSMR19-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
PCMR13-4-4-A
4 mm
4 mm
19.1 mm
Aluminum
12.7 mm
6,000 RPM
PCMR13-4-4-SS
4 mm
4 mm
19.1 mm
303 Stainless Steel
12.7 mm
6,000 RPM
PCMR16-4-3-A
4 mm
3 mm
20.3 mm
Aluminum
15.9 mm
6,000 RPM
PCMR16-4-3-SS
4 mm
3 mm
20.3 mm
303 Stainless Steel
15.9 mm
6,000 RPM
PCMR16-4-4-A
4 mm
4 mm
20.3 mm
Aluminum
15.9 mm
6,000 RPM
PCMR16-4-4-SS
4 mm
4 mm
20.3 mm
303 Stainless Steel
15.9 mm
6,000 RPM
PCMR19-4-3-A
4 mm
3 mm
22.9 mm
Aluminum
19.1 mm
6,000 RPM
PCMR19-4-3-SS
4 mm
3 mm
22.9 mm
303 Stainless Steel
19.1 mm
6,000 RPM
PCMR19-4-4-A
4 mm
4 mm
22.9 mm
Aluminum
19.1 mm
6,000 RPM
PCMR19-4-4-SS
4 mm
4 mm
22.9 mm
303 Stainless Steel
19.1 mm
6,000 RPM
PCR10-4MM-1/8"-A
4 mm
0.1250 in
0.800 in (20.3 mm)
Aluminum
0.625 in (15.9 mm)
6,000 RPM
PCR10-4MM-1/8"-SS
4 mm
0.1250 in
0.800 in (20.3 mm)
303 Stainless Steel
0.625 in (15.9 mm)
6,000 RPM
PCR10-4MM-5/32"-A
4 mm
0.1563 in
0.800 in (20.3 mm)
Aluminum
0.625 in (15.9 mm)
6,000 RPM
PCR10-4MM-5/32"-SS
4 mm
0.1563 in
0.800 in (20.3 mm)
303 Stainless Steel
0.625 in (15.9 mm)
6,000 RPM
PCR12-4MM-1/8"-A
4 mm
0.1250 in
0.900 in (22.9 mm)
Aluminum
0.750 in (19.1 mm)
6,000 RPM
PCR12-4MM-1/8"-SS
4 mm
0.1250 in
0.900 in (22.9 mm)
303 Stainless Steel
0.750 in (19.1 mm)
6,000 RPM
PCR12-4MM-5/32"-A
4 mm
0.1563 in
0.900 in (22.9 mm)
Aluminum
0.750 in (19.1 mm)
6,000 RPM
PCR12-4MM-5/32"-SS
4 mm
0.1563 in
0.900 in (22.9 mm)
303 Stainless Steel
0.750 in (19.1 mm)
6,000 RPM
PSMR16-4-3-A
4 mm
3 mm
20.3 mm
Aluminum
15.9 mm
6,000 RPM
PSMR16-4-3-SS
4 mm
3 mm
20.3 mm
303 Stainless Steel
15.9 mm
6,000 RPM
PSMR16-4-4-A
4 mm
4 mm
20.3 mm
Aluminum
15.9 mm
6,000 RPM
PSMR16-4-4-SS
4 mm
4 mm
20.3 mm
303 Stainless Steel
15.9 mm
6,000 RPM
PSMR19-4-3-A
4 mm
3 mm
22.9 mm
Aluminum
19.1 mm
6,000 RPM
PSMR19-4-3-SS
4 mm
3 mm
22.9 mm
303 Stainless Steel
19.1 mm
6,000 RPM
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4 mm
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