Ruland 31.8 mm OD 10 mm Bore, 38.1 mm Length Aluminium Clamp Style Flexible Coupler PCMR32-10-10-A

Ruland PCMR32-10-10-A is an aluminium clamp-style flexible coupler engineered for precision mechanical power transmission. It features a 31.8 mm outside diameter (OD), with both bore sizes measuring 10 mm, and an overall length of 38.1 mm. The coupler is machined from 7075-T651 extruded drawn aluminium bar, providing a lightweight structure with low moment of inertia, optimal for high-speed rotating equipment up to 6,000 RPM.

This four beam spiral coupler design incorporates two sets of spiral cuts to enhance torque capacity, reduce windup, and deliver zero backlash. The balanced design minimizes vibration, making it suitable for high accuracy applications including encoder drives and precise positioning machinery.

Key mechanical capabilities include a torque rating of 6.78 Nm and misalignment tolerances of up to 3° angular, 0.38 mm parallel, and 0.25 mm axial displacement, accommodating minor shaft misalignments without performance degradation. The coupler operates effectively between -40°C and 107°C, meeting RoHS3 and REACH compliance along with DIN 912 12.9 standards for hardware.

Manufactured with metric M4 screws, this coupling is designed for easy integration with international mechanical systems. The robust aluminium hub material ensures durability while maintaining low mass, critical for minimizing load on motor shafts in industrial, automation, and instrumentation environments.

This high precision coupler is ideal for applications in industrial machinery, laboratory equipment, automation systems, electronics manufacturing, and other areas requiring reliable, zero-backlash torque transmission at elevated speeds. Ruland products are manufactured under strict quality controls in Marlborough, Massachusetts, USA.

Constructed from 7075-T651 aluminium for lightweight and low inertia. Zero backlash design suitable for precision encoder and positioning tasks. Maximum speed rating up to 6,000 rpm for high-speed applications. Torque rating of 6.78 Nm with high torsional stiffness.

Misalignment tolerances: 3° angular, 0.38 mm parallel, 0.25 mm axial. Temperature range operation from -40°C to 107°C with RoHS and REACH compliance. Clamp style with metric M4 screws for secure mounting. Balanced design reduces vibration and improves system reliability.

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