Ruland Aluminium Flexible Coupler PCMR13-5-4-A, 12.7 mm OD, 5 mm Bore, 4 mm Bore, 19.1 mm Length, Clamp Style, 6000 RPM

Ruland PCMR13-5-4-A is a precision-engineered aluminium flexible coupler specifically designed for mechanical power transmission applications where high speed, accurate alignment, and reliable torque transfer are critical. With a compact 12.7 mm outside diameter and a 19.1 mm length, this coupler provides robust operation in demanding environments such as industrial machines, robotics, process automation, and laboratory instruments.

Its clamp style fixing allows for easy mounting and eliminates mechanical joints or failure points commonly encountered with set-screw style couplings. The coupler supports bore sizes of 5 mm and 4 mm, accommodating different shaft diameters and ensuring compatibility across a range of power transmission components.

Constructed as a torsionally rigid, one-piece aluminium unit, the coupling achieves constant velocity with zero backlash, enabling precise motion control and high torque capacity. Its advanced design also tolerates angular misalignment up to 3 degrees, parallel misalignment up to 0.2 mm, and axial misalignment up to 0.13 mm, providing flexibility in high-performance setups.

Operating at speeds up to 6000 rpm and a wide temperature range from -40°C to 107°C, the coupler is suitable for both high- and low-speed applications and can be used in reversible systems. No lubrication is required, simplifying maintenance and reducing downtime. This coupler meets DIN 912 12.9, REACH, and RoHS3 standards, making it a safe choice for regulatory-compliant industrial facilities.

Applications include rotary shaft connections in encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, and fans. Its lightweight aluminium construction and compact profile make it ideal for installations with limited space where performance and reliability are essential. The coupling contains four beams for optimal flexibility and uses an M2.5 socket head cap screw for secure assembly.

As part of the mechanical power transmission product range, the Ruland PCMR13-5-4-A flexible coupler is engineered for use across industrial, laboratory, automation, and commercial settings. Explore more precision couplers and related motion control components from Ruland in the Mechanical Power Transmission Coupler category at EnvMart.