Ruland FCR24-10-8-SS Six Beam Stainless Clamp Coupling

Ruland FCR24-10-8-SS is a clamp-style, six-beam coupling designed for high-torque, low-backlash shaft connections between inch-sized shafts. Machined from 303 stainless steel in a single bar, it features dual bores on opposite ends: 5/8" (0.6250") and 1/2" (0.5000"), allowing a 5/8" shaft to couple to a 1/2" shaft. Its outside diameter is 1.500" and overall length 2.250", with three spiral cuts per end that yield a higher torque capacity and reduced windup versus simpler beam designs. The assembly is zero-backlash, balanced for reduced vibration at speeds up to 6,000 RPM, and ships with Nypatch anti-vibration hardware to ensure even screw seating and long-term integrity. Operating temperature ranges from -40°F to 350°F (-40°C to 176°C), and the part is RoHS3 and REACH compliant, manufactured in Marlborough, MA under strict controls. Typical applications include light-duty power transmission tasks such as coupling a servo motor to a lead screw, where precise torque transfer and dependable performance are critical. This model is rated for a maximum torque around 175 in-lb, uses a clamp-on shaft locking scheme, and tolerates angular misalignment up to 3°, parallel misalignment up to 0.03", and axial motion up to 0.015" for reliable operation in dynamic setups.