Ruland Aluminium Set Screw Flexible Coupler 15 mm OD 3 mm Bore Diameter 21.8 mm Length MJS15-3-A

Ruland MJS15-3-A is a high-performance aluminium set screw flexible coupler designed for mechanical power transmission applications. It features a 15 mm outer diameter with 3 mm bore sizes and a length of 21.8 mm, making it ideal for compact shaft couplings and precision machinery.

Constructed from 2024-T351 aluminium bar and aluminium hubs, the coupler provides lightweight yet durable components suitable for demanding industrial environments. The three-piece jaw coupling design consists of two aluminium hubs and an elastomeric spider insert, which allows zero-backlash torque transfer and low inertia.

This coupling supports maximum rotational speeds up to 8,000 rpm and has a torque rating of 0.92 Nm, ensuring reliable performance under high-speed conditions. It operates efficiently within a temperature range from -23°C up to 82°C, accommodating various environmental setups.

The set screw style with M3 screws ensures secure fixing to shafts, facilitating easy installation and maintenance. Additionally, the balanced design minimizes vibration for smoother operation and enhanced equipment life.

Ruland jaw couplings allow versatility with customizable bore configurations, including clamp or set screw hubs and inch, metric, keyed, and keyless bore options. This model is precision-machined from high-quality bar stock sourced in North America and manufactured under strict quality controls in a specialized facility.

The coupler length is 21.8 mm for compact shaft connections. Designed to support shaft speeds up to 8,000 rpm reliably. Torque rating of 0.92 Nm enables effective power transmission. Manufactured using durable and lightweight aluminium materials.

Works in temperature environments ranging from -23°C to 82°C. Equipped with M3 set screw mechanism for secure mounting. Balanced design reduces vibration and mechanical stress. Features a three-piece jaw coupling with elastomeric spider insert.

Highly customizable with bore sizes and hub styles.

This flexible coupler is suitable for industrial machinery, manufacturing equipment, and fluid power systems requiring precise, vibration-reducing mechanical coupling solutions. It is an ideal component for applications demanding reliable torque transfer at high speeds with low inertia.

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