Ruland Mechanical Power Transmission Four Beam Spiral Coupling 15.9 mm OD 5 mm Bore 20.3 mm Length Clamp Style PCMR16-5-5-A

Ruland PCMR16-5-5-A is a precision four beam spiral mechanical power transmission coupling, designed for encoder and high positioning accuracy applications. It features 15.9 mm outer diameter, 5 mm bore sizes at both ends, and 20.3 mm length. The coupling's clamp style design and two sets of spiral cuts provide enhanced torque capacity and low windup, improving overall performance.

Manufactured from 7075-T651 extruded drawn aluminium bar, it offers a lightweight solution with low inertia, ideal for high-speed operations up to 6000 rpm. The balanced design reduces vibration, enhancing machine reliability in industrial settings. Suitable for use in mechanical, fluid power, and tool transmission systems, this coupling is especially effective in precision instrument, automation, and industrial machinery applications.

Operating temperatures range from -40°C to 107°C, making it robust for diverse environments. It supports misalignments including 3° angular, 0.2 mm parallel, and 0.13 mm axial, allowing flexible shaft coupling while maintaining torque transmission efficiency. The coupling hardware is metric with an M2 screw size, simplifying assembly and integration.

The product conforms to DIN 912 12.9, REACH, and RoHS3 standards, ensuring compliance with international safety and environmental regulations. PCMR16-5-5-A couplings are manufactured with strict quality control in Ruland's Marlborough facility using proprietary processes, and the raw aluminium bar is sourced exclusively from North American mills.

The coupling length of 20.3 mm suits compact mechanical assemblies requiring discrete shaft connections. The high torque rating of 1.36 Nm provides reliable power transmission in precision applications. Material and design choices improve durability, reduce backlash, and enhance performance at speeds up to 6000 rpm.

Typical uses include encoder shaft couplings, precision instrumentation, robotics, and automation machinery. The clamp style design eases installation and adjustment without losing grip or alignment.

Explore EnvMart’s extensive range of Mechanical Power Transmission Couplings for various industrial, manufacturing, and testing applications to find matching solutions optimized for your operational requirements.