Ruland Aluminium Clamp Style Jaw Coupler 25.4 mm OD, 8 mm Bore, 11.9 mm Length, Max Speed 8000 rpm MJC25-8-A

Ruland MJC25-8-A aluminium clamp style jaw coupler features a 25.4 mm outside diameter, 8 mm bore diameter, and 11.9 mm length, designed for rotational speeds up to 8000 rpm. This rigid yet flexible coupling is engineered to provide reliable mechanical power transmission in various industries including manufacturing, HVAC, laboratory, and mechanical power transmission applications.

The coupling is a three-piece assembly consisting of two aluminium hubs and an elastic polyurethane spider insert that provides damping of impulse loads. The polyurethane spider is available in two hardness levels (92 Shore for superior damping and 98 Shore for enhanced torsional rigidity), enabling customization of coupling performance to meet specific operational requirements.

The clamp style jaw coupler offers large torque capacity with balanced design that supports high bearing loads and moderate inertia. Its fail-safe design ensures the coupling continues operation even if the spider element is compromised, thus enhancing equipment reliability and uptime.

Designed with a finished bore without keyway, this coupler requires two hubs and an elastomeric jaw spider disc to complete the assembly, all to be sourced separately. Its ability to accommodate slight angular, axial, and parallel misalignments makes it an ideal choice for precision machinery and power transmission systems where vibration damping and shock minimization are critical.

Durable aluminium construction provides lightweight strength and corrosion resistance. Zero backlash curved jaw teeth ensure precise torque transmission. Polyurethane spider absorbs shocks and dampens vibrations to protect motors and sensitive equipment.

Large torque capacity suitable for demanding industrial applications. Balanced design reduces wear on bearings and extends equipment life. Allows for small misalignments to prevent stress on connected components. Fail-safe operation continues transmission even if spider wears or fails.

Country of origin is United States, and the product complies with RoHS, DIN 91 1.9, and REACH standards, assuring quality and environmental safety. This product is sold as a single hub; a complete assembly requires two hubs plus a jaw spider elastomeric insert, all sold separately. Ideal applications include industrial material handling equipment, manufacturing machinery, and fluid power systems requiring flexible couplings.

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