Ruland Mechanical Power Transmission Coupler 31.8 mm OD 12 mm Bore 44.5 mm Length Clamp Style Aluminium FCMR32-12-8-A

Ruland FCMR32-12-8-A mechanical power transmission coupler is engineered for efficient light duty power transmission applications, such as coupling servo motors to lead screws. It features a 31.8 mm outer diameter and a length of 44.5 mm, with bores sized 12 mm and 8 mm respectively. The coupling is constructed from machined 7075-T651 extruded drawn aluminium bar, providing a lightweight, low inertia solution.

The coupling incorporates a six beam design with two sets of three spiral cuts, delivering higher torque capacity of 5.65 Nm, reduced windup, and increased body size compared to traditional single or four beam couplings. It operates at speeds up to 6000 RPM with zero backlash, enhancing precision in demanding mechanical power transmission scenarios.

Its clamp style facilitates secure attachment using metric M5 screws supplied with Nypatch anti-vibration hardware that prevents galling, ensures repeated screw installations, and maintains high holding power. The design accommodates angular misalignment of up to 3°, parallel offset of 0.38 mm, and axial movement of 0.25 mm, enabling reliable operation under typical use conditions.

Operating temperatures range from -40°C minimum to 107°C maximum, making it suitable for varied industrial environments. Manufacturing utilizes bar stock sourced exclusively from North American mills, with production carried out under proprietary quality control processes in Marlborough, MA.

Machined from 7075 Aluminium for lightweight and strength. Six beam spiral cut design increases torque capacity. Zero backlash design reduces vibration at high RPM. Clamp style with metric M5 anti-vibration hardware. Supports various misalignments: angular, parallel, and axial.

Operates reliably under -40°C to 107°C temperature range. Ideal for coupling servo motors to lead screws in light duty applications.

This Ruland coupler is suitable for industrial, manufacturing, and mechanical power transmission uses where precise, reliable connection and torque transfer are critical. Browse the Mechanical Power Transmission Couplers category at EnvMart for compatible products and accessories.