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F-Series Six Beam Couplings
F-Series six beam couplings are ideal for light duty power transmission applications such as coupling a servo motor to a lead screw in a motion control system. These flexible couplings feature larger body size and stronger beams to provide high torque capacity and low windup, while not sacrificing misalignment capabilities. The demanding nature of reversing servo applications make the performance benefits delivered by the F-series beam coupling vital to maintaining the accuracy, repeatability and reliability of the system. F-series helical couplings with socket head cap screws include Ruland's exclusive Nypatch® coating. This coating reduces vibration which can cause threads to loosen, and reduces galling of the screw threads in stainless steel shaft couplings. Ruland manufactures F-series beam couplings from 7075 aluminum for lightweight and low inertia and 303 stainless steel for increased torque capabilities.
Features Aluminum
Torsionally stiff with dampening
Lightweight for low inertia
Temperature range: -40°F to 225°F
Stainless Steel
High torque and torsional stiffness
Corrosion resistant
Temperature range: -40°F to 350°F
Multiple beam cuts improve parallel misalignment capabilities
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:
FCR10-4-4-A
FCR10-4-4-A
As low as
$36.23
$53.13
Ruland FCR10-4-4-A, 1/4" x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 0.625" OD, 1.000" Length
Download CAD File:
FCR10-4-4-SS
FCR10-4-4-SS
As low as
$90.40
$132.58
Ruland FCR10-4-4-SS, 1/4" x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 0.625" OD, 1.000" Length
Download CAD File:
FCR12-4-4-A
FCR12-4-4-A
As low as
$37.80
$55.45
Ruland FCR12-4-4-A, 1/4" x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 0.750" OD, 1.250" Length
Download CAD File:
FCR12-4-4-SS
FCR12-4-4-SS
As low as
$89.00
$130.53
Ruland FCR12-4-4-SS, 1/4" x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 0.750" OD, 1.250" Length
Download CAD File:
FCR12-5-4-A
FCR12-5-4-A
As low as
$37.80
$55.45
Ruland FCR12-5-4-A, 5/16" x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 0.750" OD, 1.250" Length
Download CAD File:
FCR12-5-4-SS
FCR12-5-4-SS
As low as
$89.00
$130.53
Ruland FCR12-5-4-SS, 5/16" x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 0.750" OD, 1.250" Length
Download CAD File:
FCR12-7MM-1/4\"-A
FCR12-7MM-1/4"-A
As low as
$37.80
$55.45
Ruland FCR12-7MM-1/4"-A, 7mm x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.250" (31.8mm) Length
Download CAD File:
FCR12-7MM-1/4\"-SS
FCR12-7MM-1/4"-SS
As low as
$89.00
$130.53
Ruland FCR12-7MM-1/4"-SS, 7mm x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 0.750" (19.1mm) OD, 1.250" (31.8mm) Length
Download CAD File:
FCR12-8MM-1/4\"-A
FCR12-8MM-1/4"-A
As low as
$37.80
$55.45
Ruland FCR12-8MM-1/4"-A, 8mm x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 0.750" (19.1mm) OD, 1.250" (31.8mm) Length
Download CAD File:
FCR12-8MM-1/4\"-SS
FCR12-8MM-1/4"-SS
As low as
$89.00
$130.53
Ruland FCR12-8MM-1/4"-SS, 8mm x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 0.750" (19.1mm) OD, 1.250" (31.8mm) Length
Download CAD File:
FCR16-10MM-1/4\"-A
FCR16-10MM-1/4"-A
As low as
$44.61
$65.43
Ruland FCR16-10MM-1/4"-A, 10mm x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-10MM-1/4\"-SS
FCR16-10MM-1/4"-SS
As low as
$109.75
$160.96
Ruland FCR16-10MM-1/4"-SS, 10mm x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-11MM-1/4\"-A
FCR16-11MM-1/4"-A
As low as
$44.61
$65.43
Ruland FCR16-11MM-1/4"-A, 11mm x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-11MM-1/4\"-SS
FCR16-11MM-1/4"-SS
As low as
$109.75
$160.96
Ruland FCR16-11MM-1/4"-SS, 11mm x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-12MM-1/4\"-A
FCR16-12MM-1/4"-A
As low as
$44.61
$65.43
Ruland FCR16-12MM-1/4"-A, 12mm x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-12MM-1/4\"-SS
FCR16-12MM-1/4"-SS
As low as
$109.75
$160.96
Ruland FCR16-12MM-1/4"-SS, 12mm x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-4-4-A
FCR16-4-4-A
As low as
$44.61
$65.43
Ruland FCR16-4-4-A, 1/4" x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" OD, 1.500" Length
Download CAD File:
FCR16-4-4-SS
FCR16-4-4-SS
As low as
$109.75
$160.96
Ruland FCR16-4-4-SS, 1/4" x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" OD, 1.500" Length
Download CAD File:
FCR16-5-4-A
FCR16-5-4-A
As low as
$44.61
$65.43
Ruland FCR16-5-4-A, 5/16" x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" OD, 1.500" Length
Download CAD File:
FCR16-5-4-SS
FCR16-5-4-SS
As low as
$109.75
$160.96
Ruland FCR16-5-4-SS, 5/16" x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" OD, 1.500" Length
Download CAD File:
FCR16-6-4-A
FCR16-6-4-A
As low as
$44.61
$65.43
Ruland FCR16-6-4-A, 3/8" x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" OD, 1.500" Length
Download CAD File:
FCR16-6-4-SS
FCR16-6-4-SS
As low as
$109.75
$160.96
Ruland FCR16-6-4-SS, 3/8" x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" OD, 1.500" Length
Download CAD File:
FCR16-7MM-1/4\"-A
FCR16-7MM-1/4"-A
As low as
$44.61
$65.43
Ruland FCR16-7MM-1/4"-A, 7mm x 1/4" Six Beam Coupling, Aluminum, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Download CAD File:
FCR16-7MM-1/4\"-SS
FCR16-7MM-1/4"-SS
As low as
$109.75
$160.96
Ruland FCR16-7MM-1/4"-SS, 7mm x 1/4" Six Beam Coupling, Stainless Steel, Clamp Style, 1.000" (25.4mm) OD, 1.500" (38.1mm) Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
FCR10-4-4-A
0.2500 in
0.2500 in
1.000 in
Aluminum
0.625 in
6,000 RPM
FCR10-4-4-SS
0.2500 in
0.2500 in
1.000 in
303 Stainless Steel
0.625 in
6,000 RPM
FCR12-4-4-A
0.2500 in
0.2500 in
1.250 in
Aluminum
0.750 in
6,000 RPM
FCR12-4-4-SS
0.2500 in
0.2500 in
1.250 in
303 Stainless Steel
0.750 in
6,000 RPM
FCR12-5-4-A
0.3125 in
0.2500 in
1.250 in
Aluminum
0.750 in
6,000 RPM
FCR12-5-4-SS
0.3125 in
0.2500 in
1.250 in
303 Stainless Steel
0.750 in
6,000 RPM
FCR12-7MM-1/4"-A
7 mm
0.2500 in
1.250 in (31.8 mm)
Aluminum
0.750 in (19.1 mm)
6,000 RPM
FCR12-7MM-1/4"-SS
7 mm
0.2500 in
1.250 in (31.8 mm)
303 Stainless Steel
0.750 in (19.1 mm)
6,000 RPM
FCR12-8MM-1/4"-A
8 mm
0.2500 in
1.250 in (31.8 mm)
Aluminum
0.750 in (19.1 mm)
6,000 RPM
FCR12-8MM-1/4"-SS
8 mm
0.2500 in
1.250 in (31.8 mm)
303 Stainless Steel
0.750 in (19.1 mm)
6,000 RPM
FCR16-10MM-1/4"-A
10 mm
0.2500 in
1.500 in (38.1 mm)
Aluminum
1.000 in (25.4 mm)
6,000 RPM
FCR16-10MM-1/4"-SS
10 mm
0.2500 in
1.500 in (38.1 mm)
303 Stainless Steel
1.000 in (25.4 mm)
6,000 RPM
FCR16-11MM-1/4"-A
11 mm
0.2500 in
1.500 in (38.1 mm)
Aluminum
1.000 in (25.4 mm)
6,000 RPM
FCR16-11MM-1/4"-SS
11 mm
0.2500 in
1.500 in (38.1 mm)
303 Stainless Steel
1.000 in (25.4 mm)
6,000 RPM
FCR16-12MM-1/4"-A
12 mm
0.2500 in
1.500 in (38.1 mm)
Aluminum
1.000 in (25.4 mm)
6,000 RPM
FCR16-12MM-1/4"-SS
12 mm
0.2500 in
1.500 in (38.1 mm)
303 Stainless Steel
1.000 in (25.4 mm)
6,000 RPM
FCR16-4-4-A
0.2500 in
0.2500 in
1.500 in
Aluminum
1.000 in
6,000 RPM
FCR16-4-4-SS
0.2500 in
0.2500 in
1.500 in
303 Stainless Steel
1.000 in
6,000 RPM
FCR16-5-4-A
0.3125 in
0.2500 in
1.500 in
Aluminum
1.000 in
6,000 RPM
FCR16-5-4-SS
0.3125 in
0.2500 in
1.500 in
303 Stainless Steel
1.000 in
6,000 RPM
FCR16-6-4-A
0.3750 in
0.2500 in
1.500 in
Aluminum
1.000 in
6,000 RPM
FCR16-6-4-SS
0.3750 in
0.2500 in
1.500 in
303 Stainless Steel
1.000 in
6,000 RPM
FCR16-7MM-1/4"-A
7 mm
0.2500 in
1.500 in (38.1 mm)
Aluminum
1.000 in (25.4 mm)
6,000 RPM
FCR16-7MM-1/4"-SS
7 mm
0.2500 in
1.500 in (38.1 mm)
303 Stainless Steel
1.000 in (25.4 mm)
6,000 RPM
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Small Bore (B2)
0.2500 in
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