Ruland Aluminium Clamp Style Flexible Coupler 19.1 mm OD, 8 mm x 6 mm Bores, 31.8 mm Length, 6000 RPM, 2.26 Nm FCMR19-8-6-A

Ruland FCMR19-8-6-A is a precision engineered aluminium flexible coupler designed for mechanical power transmission applications requiring light duty torque transfer and low inertia. With an outside diameter of 19.1 mm and length of 31.8 mm, this clamp style flexible coupling features an innovative six beam design with two sets of three spiral cuts machined from a single 7075-T651 aluminium bar stock. This design accommodates angular, parallel, and axial misalignment while minimizing windup and vibration during high-speed rotation up to 6000 RPM.

The coupler has bore sizes of 8 mm and 6 mm allowing it to couple shafts with different diameters securely using the clamp style hub. It offers a torque rating of 2.26 Nm and an extremely low moment of inertia of 1.037 x 10^-6 kg·m² making it well suited for coupling servo motors to lead screws in light industrial, automation, and laboratory equipment applications.

Operating temperature capability ranges from -40°C to 107°C, ensuring reliable performance in various industrial environments. The coupling comes with M3 metric screws treated with Nypatch anti-vibration coating to prevent screw galling and maintain high holding power even under repeated installations.

Precision machined clamp style flexible coupler from 7075 aluminium. Six beam spiral cut design for zero backlash and reduced vibration. Maximum rotational speed up to 6000 revolutions per minute. Torque capacity of 2.26 Newton meters for light duty mechanical power transmission.

Accommodates angular, parallel, and axial misalignment. Bores of 8 mm and 6 mm for differing shaft diameters. Operating temperature from minus 40 to 107 degrees Celsius. Includes metric M3 screws with anti-vibration feature.

Compliant with REACH, DIN 912 12.9, and RoHS3 standards.

This Ruland flexible coupler is manufactured under strict quality controls at the Marlborough, MA facility, using premium North American sourced materials. It is ideal for industrial, laboratory, manufacturing automation, and power transmission system applications requiring precision, durability, and quiet operation.

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