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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:
PCMR25-10-10-SS
PCMR25-10-10-SS
As low as
$99.80
$146.37
Ruland PCMR25-10-10-SS, 10mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.4mm OD, 31.8mm Length
Download CAD File:
PCMR29-10-10-A
PCMR29-10-10-A
As low as
$47.49
$69.65
Ruland PCMR29-10-10-A, 10mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 28.6mm OD, 38.1mm Length
Download CAD File:
PCMR29-10-10-SS
PCMR29-10-10-SS
As low as
$119.59
$175.40
Ruland PCMR29-10-10-SS, 10mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 28.6mm OD, 38.1mm Length
Download CAD File:
PCMR29-11-10-A
PCMR29-11-10-A
As low as
$47.49
$69.65
Ruland PCMR29-11-10-A, 11mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 28.6mm OD, 38.1mm Length
Download CAD File:
PCMR29-11-10-SS
PCMR29-11-10-SS
As low as
$119.59
$175.40
Ruland PCMR29-11-10-SS, 11mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 28.6mm OD, 38.1mm Length
Download CAD File:
PCMR29-12-10-A
PCMR29-12-10-A
As low as
$47.49
$69.65
Ruland PCMR29-12-10-A, 12mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 28.6mm OD, 38.1mm Length
Download CAD File:
PCMR29-12-10-SS
PCMR29-12-10-SS
As low as
$119.59
$175.40
Ruland PCMR29-12-10-SS, 12mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 28.6mm OD, 38.1mm Length
Download CAD File:
PCMR32-10-10-A
PCMR32-10-10-A
As low as
$58.15
$85.29
Ruland PCMR32-10-10-A, 10mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 31.8mm OD, 38.1mm Length
Download CAD File:
PCMR32-10-10-SS
PCMR32-10-10-SS
As low as
$146.33
$214.61
Ruland PCMR32-10-10-SS, 10mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 31.8mm OD, 38.1mm Length
Download CAD File:
PCMR32-11-10-A
PCMR32-11-10-A
As low as
$58.15
$85.29
Ruland PCMR32-11-10-A, 11mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 31.8mm OD, 38.1mm Length
Download CAD File:
PCMR32-11-10-SS
PCMR32-11-10-SS
As low as
$146.33
$214.61
Ruland PCMR32-11-10-SS, 11mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 31.8mm OD, 38.1mm Length
Download CAD File:
PCMR32-12-10-A
PCMR32-12-10-A
As low as
$58.15
$85.29
Ruland PCMR32-12-10-A, 12mm x 10mm Four Beam Coupling, Aluminum, Clamp Style, 31.8mm OD, 38.1mm Length
Download CAD File:
PCMR32-12-10-SS
PCMR32-12-10-SS
As low as
$146.33
$214.61
Ruland PCMR32-12-10-SS, 12mm x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 31.8mm OD, 38.1mm 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\"-10MM-SS
PCR18-1/2"-10MM-SS
As low as
$119.59
$175.40
Ruland PCR18-1/2"-10MM-SS, 1/2" x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 1.125" (28.6mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR20-1/2\"-10MM-A
PCR20-1/2"-10MM-A
As low as
$58.15
$85.29
Ruland PCR20-1/2"-10MM-A, 1/2" x 10mm Four Beam Coupling, Aluminum, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR20-1/2\"-10MM-SS
PCR20-1/2"-10MM-SS
As low as
$146.33
$214.61
Ruland PCR20-1/2"-10MM-SS, 1/2" x 10mm Four Beam Coupling, Stainless Steel, Clamp Style, 1.250" (31.8mm) OD, 1.500" (38.1mm) Length
Download CAD File:
PCR6-1.5-1.5-A
PCR6-1.5-1.5-A
As low as
$37.83
$55.49
Ruland PCR6-1.5-1.5-A, 3/32" x 3/32" Four Beam Coupling, Aluminum, Clamp Style, 0.375" OD, 0.563" Length
Download CAD File:
PCR6-1.5-1.5-SS
PCR6-1.5-1.5-SS
As low as
$86.65
$127.09
Ruland PCR6-1.5-1.5-SS, 3/32" x 3/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.375" OD, 0.563" Length
Download CAD File:
PCR6-3MM-3/32\"-A
PCR6-3MM-3/32"-A
As low as
$37.83
$55.49
Ruland PCR6-3MM-3/32"-A, 3mm x 3/32" Four Beam Coupling, Aluminum, Clamp Style, 0.375" (9.5mm) OD, 0.563" (14.3mm) Length
Download CAD File:
PCR6-3MM-3/32\"-SS
PCR6-3MM-3/32"-SS
As low as
$86.65
$127.09
Ruland PCR6-3MM-3/32"-SS, 3mm x 3/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.375" (9.5mm) OD, 0.563" (14.3mm) Length
Download CAD File:
PCR8-1.5-1.5-A
PCR8-1.5-1.5-A
As low as
$33.78
$49.54
Ruland PCR8-1.5-1.5-A, 3/32" x 3/32" Four Beam Coupling, Aluminum, Clamp Style, 0.500" OD, 0.750" Length
Download CAD File:
PCR8-1.5-1.5-SS
PCR8-1.5-1.5-SS
As low as
$88.31
$129.52
Ruland PCR8-1.5-1.5-SS, 3/32" x 3/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.500" OD, 0.750" 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
PCMR25-10-10-SS
10 mm
10 mm
31.8 mm
303 Stainless Steel
25.4 mm
6,000 RPM
PCMR29-10-10-A
10 mm
10 mm
38.1 mm
Aluminum
28.6 mm
6,000 RPM
PCMR29-10-10-SS
10 mm
10 mm
38.1 mm
303 Stainless Steel
28.6 mm
6,000 RPM
PCMR29-11-10-A
11 mm
10 mm
38.1 mm
Aluminum
28.6 mm
6,000 RPM
PCMR29-11-10-SS
11 mm
10 mm
38.1 mm
303 Stainless Steel
28.6 mm
6,000 RPM
PCMR29-12-10-A
12 mm
10 mm
38.1 mm
Aluminum
28.6 mm
6,000 RPM
PCMR29-12-10-SS
12 mm
10 mm
38.1 mm
303 Stainless Steel
28.6 mm
6,000 RPM
PCMR32-10-10-A
10 mm
10 mm
38.1 mm
Aluminum
31.8 mm
6,000 RPM
PCMR32-10-10-SS
10 mm
10 mm
38.1 mm
303 Stainless Steel
31.8 mm
6,000 RPM
PCMR32-11-10-A
11 mm
10 mm
38.1 mm
Aluminum
31.8 mm
6,000 RPM
PCMR32-11-10-SS
11 mm
10 mm
38.1 mm
303 Stainless Steel
31.8 mm
6,000 RPM
PCMR32-12-10-A
12 mm
10 mm
38.1 mm
Aluminum
31.8 mm
6,000 RPM
PCMR32-12-10-SS
12 mm
10 mm
38.1 mm
303 Stainless Steel
31.8 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"-10MM-SS
0.5000 in
10 mm
1.500 in (38.1 mm)
303 Stainless Steel
1.125 in (28.6 mm)
6,000 RPM
PCR20-1/2"-10MM-A
0.5000 in
10 mm
1.500 in (38.1 mm)
Aluminum
1.250 in (31.8 mm)
6,000 RPM
PCR20-1/2"-10MM-SS
0.5000 in
10 mm
1.500 in (38.1 mm)
303 Stainless Steel
1.250 in (31.8 mm)
6,000 RPM
PCR6-1.5-1.5-A
0.0938 in
0.0938 in
0.563 in
Aluminum
0.375 in
6,000 RPM
PCR6-1.5-1.5-SS
0.0938 in
0.0938 in
0.563 in
303 Stainless Steel
0.375 in
6,000 RPM
PCR6-3MM-3/32"-A
3 mm
0.0938 in
0.563 in (14.3 mm)
Aluminum
0.375 in (9.5 mm)
6,000 RPM
PCR6-3MM-3/32"-SS
3 mm
0.0938 in
0.563 in (14.3 mm)
303 Stainless Steel
0.375 in (9.5 mm)
6,000 RPM
PCR8-1.5-1.5-A
0.0938 in
0.0938 in
0.750 in
Aluminum
0.500 in
6,000 RPM
PCR8-1.5-1.5-SS
0.0938 in
0.0938 in
0.750 in
303 Stainless Steel
0.500 in
6,000 RPM
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Now Shopping by
Small Bore (B2)
0.0938 in
Small Bore (B2)
10 mm
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