The store will not work correctly in the case when cookies are disabled.
JavaScript seems to be disabled in your browser.
For the best experience on our site, be sure to turn on Javascript in your browser.
Due to Microsoft's discontinuation of updates, including security, certain functionality such as checkout and CAD may not work for you. We recommend using Google Chrome, Microsoft Edge, Firefox, or Safari to ensure full functionality.Thank you - the Ruland team
Beam Couplings for Encoders
Ruland 4-beam couplings are manufactured from a single piece of aluminum or stainless steel with multiple spiral (helical) cuts allowing for a zero-backlash encoder coupling with higher accuracy and better overall misalignment capabilities than traditional single beam couplings. They are designed with extra flexibility to provide reduced bearing loads, which is critical in encoders which have small sensitive bearings. Ruland 4-beam couplings have a balanced design for reduced vibration at speeds up to 6,000 RPM. Ruland manufactures two series of 4-beam couplings, P and MW, giving designers a variety of performance and dimensional characteristics to choose from. Ruland manufactures 4-beam couplings in our Marlborough, Massachusetts factory with bore sizes ranging from 3/32” to 1/2” or 3mm to 12mm.
Products
Download CAD File:
PCR10-2.5-2-A
PCR10-2.5-2-A
As low as
$32.53
$47.70
Ruland PCR10-2.5-2-A, 5/32" x 1/8" Four Beam Coupling, Aluminum, Clamp Style, 0.625" OD, 0.800" Length
Download CAD File:
PCR10-2.5-2-SS
PCR10-2.5-2-SS
As low as
$89.78
$131.68
Ruland PCR10-2.5-2-SS, 5/32" x 1/8" Four Beam Coupling, Stainless Steel, Clamp Style, 0.625" OD, 0.800" Length
Download CAD File:
PCR10-2.5-2.5-A
PCR10-2.5-2.5-A
As low as
$32.53
$47.70
Ruland PCR10-2.5-2.5-A, 5/32" x 5/32" Four Beam Coupling, Aluminum, Clamp Style, 0.625" OD, 0.800" Length
Download CAD File:
PCR10-2.5-2.5-SS
PCR10-2.5-2.5-SS
As low as
$89.78
$131.68
Ruland PCR10-2.5-2.5-SS, 5/32" x 5/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.625" OD, 0.800" Length
Download CAD File:
PCR10-5/32\"-3MM-A
PCR10-5/32"-3MM-A
As low as
$32.53
$47.70
Ruland PCR10-5/32"-3MM-A, 5/32" x 3mm Four Beam Coupling, Aluminum, Clamp Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PCR10-5/32\"-3MM-SS
PCR10-5/32"-3MM-SS
As low as
$89.78
$131.68
Ruland PCR10-5/32"-3MM-SS, 5/32" x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PCR12-2.5-2-A
PCR12-2.5-2-A
As low as
$33.27
$48.79
Ruland PCR12-2.5-2-A, 5/32" x 1/8" Four Beam Coupling, Aluminum, Clamp Style, 0.750" OD, 0.900" Length
Download CAD File:
PCR12-2.5-2-SS
PCR12-2.5-2-SS
As low as
$83.24
$122.08
Ruland PCR12-2.5-2-SS, 5/32" x 1/8" Four Beam Coupling, Stainless Steel, Clamp Style, 0.750" OD, 0.900" Length
Download CAD File:
PCR12-2.5-2.5-A
PCR12-2.5-2.5-A
As low as
$33.27
$48.79
Ruland PCR12-2.5-2.5-A, 5/32" x 5/32" Four Beam Coupling, Aluminum, Clamp Style, 0.750" OD, 0.900" Length
Download CAD File:
PCR12-2.5-2.5-SS
PCR12-2.5-2.5-SS
As low as
$83.24
$122.08
Ruland PCR12-2.5-2.5-SS, 5/32" x 5/32" Four Beam Coupling, Stainless Steel, Clamp Style, 0.750" OD, 0.900" Length
Download CAD File:
PCR12-5/32\"-3MM-A
PCR12-5/32"-3MM-A
As low as
$33.27
$48.79
Ruland PCR12-5/32"-3MM-A, 5/32" x 3mm Four Beam Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PCR12-5/32\"-3MM-SS
PCR12-5/32"-3MM-SS
As low as
$83.24
$122.08
Ruland PCR12-5/32"-3MM-SS, 5/32" x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PSR10-2.5-2-A
PSR10-2.5-2-A
As low as
$27.28
$40.01
Ruland PSR10-2.5-2-A, 5/32" x 1/8" Four Beam Coupling, Aluminum, Set Screw Style, 0.625" OD, 0.800" Length
Download CAD File:
PSR10-2.5-2-SS
PSR10-2.5-2-SS
As low as
$80.07
$117.44
Ruland PSR10-2.5-2-SS, 5/32" x 1/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.625" OD, 0.800" Length
Download CAD File:
PSR10-2.5-2.5-A
PSR10-2.5-2.5-A
As low as
$27.28
$40.01
Ruland PSR10-2.5-2.5-A, 5/32" x 5/32" Four Beam Coupling, Aluminum, Set Screw Style, 0.625" OD, 0.800" Length
Download CAD File:
PSR10-2.5-2.5-SS
PSR10-2.5-2.5-SS
As low as
$80.07
$117.44
Ruland PSR10-2.5-2.5-SS, 5/32" x 5/32" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.625" OD, 0.800" Length
Download CAD File:
PSR10-5/32\"-3MM-A
PSR10-5/32"-3MM-A
As low as
$27.28
$40.01
Ruland PSR10-5/32"-3MM-A, 5/32" x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PSR10-5/32\"-3MM-SS
PSR10-5/32"-3MM-SS
As low as
$80.07
$117.44
Ruland PSR10-5/32"-3MM-SS, 5/32" x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.625" (15.9mm) OD, 0.800" (20.3mm) Length
Download CAD File:
PSR12-2.5-2-A
PSR12-2.5-2-A
As low as
$28.58
$41.91
Ruland PSR12-2.5-2-A, 5/32" x 1/8" Four Beam Coupling, Aluminum, Set Screw Style, 0.750" OD, 0.900" Length
Download CAD File:
PSR12-2.5-2-SS
PSR12-2.5-2-SS
As low as
$72.98
$107.04
Ruland PSR12-2.5-2-SS, 5/32" x 1/8" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.750" OD, 0.900" Length
Download CAD File:
PSR12-2.5-2.5-A
PSR12-2.5-2.5-A
As low as
$28.58
$41.91
Ruland PSR12-2.5-2.5-A, 5/32" x 5/32" Four Beam Coupling, Aluminum, Set Screw Style, 0.750" OD, 0.900" Length
Download CAD File:
PSR12-2.5-2.5-SS
PSR12-2.5-2.5-SS
As low as
$72.98
$107.04
Ruland PSR12-2.5-2.5-SS, 5/32" x 5/32" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.750" OD, 0.900" Length
Download CAD File:
PSR12-5/32\"-3MM-A
PSR12-5/32"-3MM-A
As low as
$28.58
$41.91
Ruland PSR12-5/32"-3MM-A, 5/32" x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Download CAD File:
PSR12-5/32\"-3MM-SS
PSR12-5/32"-3MM-SS
As low as
$72.98
$107.04
Ruland PSR12-5/32"-3MM-SS, 5/32" x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.750" (19.1mm) OD, 0.900" (22.9mm) Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
PCR10-2.5-2-A
0.1563 in
0.1250 in
0.800 in
Aluminum
0.625 in
6,000 RPM
PCR10-2.5-2-SS
0.1563 in
0.1250 in
0.800 in
303 Stainless Steel
0.625 in
6,000 RPM
PCR10-2.5-2.5-A
0.1563 in
0.1563 in
0.800 in
Aluminum
0.625 in
6,000 RPM
PCR10-2.5-2.5-SS
0.1563 in
0.1563 in
0.800 in
303 Stainless Steel
0.625 in
6,000 RPM
PCR10-5/32"-3MM-A
0.1563 in
3 mm
0.800 in (20.3 mm)
Aluminum
0.625 in (15.9 mm)
6,000 RPM
PCR10-5/32"-3MM-SS
0.1563 in
3 mm
0.800 in (20.3 mm)
303 Stainless Steel
0.625 in (15.9 mm)
6,000 RPM
PCR12-2.5-2-A
0.1563 in
0.1250 in
0.900 in
Aluminum
0.750 in
6,000 RPM
PCR12-2.5-2-SS
0.1563 in
0.1250 in
0.900 in
303 Stainless Steel
0.750 in
6,000 RPM
PCR12-2.5-2.5-A
0.1563 in
0.1563 in
0.900 in
Aluminum
0.750 in
6,000 RPM
PCR12-2.5-2.5-SS
0.1563 in
0.1563 in
0.900 in
303 Stainless Steel
0.750 in
6,000 RPM
PCR12-5/32"-3MM-A
0.1563 in
3 mm
0.900 in (22.9 mm)
Aluminum
0.750 in (19.1 mm)
6,000 RPM
PCR12-5/32"-3MM-SS
0.1563 in
3 mm
0.900 in (22.9 mm)
303 Stainless Steel
0.750 in (19.1 mm)
6,000 RPM
PSR10-2.5-2-A
0.1563 in
0.1250 in
0.800 in
Aluminum
0.625 in
6,000 RPM
PSR10-2.5-2-SS
0.1563 in
0.1250 in
0.800 in
303 Stainless Steel
0.625 in
6,000 RPM
PSR10-2.5-2.5-A
0.1563 in
0.1563 in
0.800 in
Aluminum
0.625 in
6,000 RPM
PSR10-2.5-2.5-SS
0.1563 in
0.1563 in
0.800 in
303 Stainless Steel
0.625 in
6,000 RPM
PSR10-5/32"-3MM-A
0.1563 in
3 mm
0.800 in (20.3 mm)
Aluminum
0.625 in (15.9 mm)
6,000 RPM
PSR10-5/32"-3MM-SS
0.1563 in
3 mm
0.800 in (20.3 mm)
303 Stainless Steel
0.625 in (15.9 mm)
6,000 RPM
PSR12-2.5-2-A
0.1563 in
0.1250 in
0.900 in
Aluminum
0.750 in
6,000 RPM
PSR12-2.5-2-SS
0.1563 in
0.1250 in
0.900 in
303 Stainless Steel
0.750 in
6,000 RPM
PSR12-2.5-2.5-A
0.1563 in
0.1563 in
0.900 in
Aluminum
0.750 in
6,000 RPM
PSR12-2.5-2.5-SS
0.1563 in
0.1563 in
0.900 in
303 Stainless Steel
0.750 in
6,000 RPM
PSR12-5/32"-3MM-A
0.1563 in
3 mm
0.900 in (22.9 mm)
Aluminum
0.750 in (19.1 mm)
6,000 RPM
PSR12-5/32"-3MM-SS
0.1563 in
3 mm
0.900 in (22.9 mm)
303 Stainless Steel
0.750 in (19.1 mm)
6,000 RPM
Filter
Now Shopping by
Bore (B1)
0.1563 in
Shopping Options
© 2024 Ruland Manufacturing Co., Inc. All rights reserved
Top 
