This Martin coupling chain is for use with Martin taper bushed, Quick Disconnect (QD) and stock, and finished bore roller chain style couplings. It holds the two hubs of the coupling assembly together and is made of steel for strength and durability. This coupling chain has an operating temperature range of -30 to 225 degrees F (-34 to 107 degrees C). Martin roller chain couplings are suitable for use in a variety of industries in applications that involve slow speeds and high torque, including conveyors, fans, blowers, pumps, motors, and gear boxes, among others.

Flexible couplings are used to link two rotating shafts that are not aligned in order to transmit the rotational power, known as torque, from one shaft to the other. Most flexible couplings consist of two hubs and a middle assembly; each hub attaches to a shaft while the middle assembly flexes between the hubs to accommodate the misalignment of the two shafts. Shaft misalignments are generally either parallel or angular and cause complications to transmitting rotational power from one shaft to another in the form of stresses, loads, vibrations, and other forces, which vary from one type of misalignment to another. Flexible couplings are used in a broad range of applications, such as in motor vehicles, conveyors, escalators, agricultural, forestry and mining equipment, aeronautics, robotics and space exploration, among others.

Martin Sprocket & Gear manufactures power transmission and conveying products. Martin provides tools that meet American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut für Normung (DIN) standards. The company, founded in 1951, is headquartered in Arlington, TX.