Ruland FCR12-4-3-A Clamping Beam Coupling, Polished Aluminum, Inch, 1/4" Bore A Diameter, 3/16" Bore B Diameter, 3/4" OD, 1-1/4" Length, 26 lb-in Nominal Torque

Shaft Couplings - Flexbeam zero-backlash flexible couplings are machined from a single piece of aluminum and feature two sets of spiral cuts. The multiple cut design provides higher torque capabilities and greatly reduced wind-up compared to commodity type single beam couplings. The Flexbeam design provides superior parallel misalignment capabilities as well as angular misalignment, axial motion or any combination of all three. The clamp style also has the additional benefit of dynamic balancing due to the unique configuration of the socket head cap screws. The Flexbeam-3 couplings are ideal for light duty power transmission applications. These couplings feature larger body sizes and stronger beams to provide high torque capacity and very low wind-up, while not sacrificing misalignment capabilities. Flexbeam-2 couplings are designed specifically for precision applications such as encoders and tachometers. Flexbeam-2 provides extra flexibility to yield reduced bearing loads, and shorter industry standard lengths to fit in confined spaces and allow for easy retrofits in existing equipment. All Flexbeams handle up to 3 degrees of angular misalignment.

• Six beam couplings have higher torque and torsional stiffness than four and single beam couplings for use in light duty power transmission applications such as connecting a motor to a lead screw
• Zero-backlash and a balanced design for reduced vibration at speeds up to 6,000 RPM
• Manufactured from 7075 aluminum for light weight and low inertia
• Nypatch anti-vibration hardware prevents galling, maintains high holding power, and allows for multiple screw insertions.Hardware exceeds DIN 912 12.9 standards for maximum torque capabilities
• Ruland beam couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant