Company’s 17-4PH stainless steel couplings are ideal when high strength, fatigue resistance and high torsional stiffness are called for in an application. They provide twice the torque of 303 stainless steel and 7075-T6 aluminum. They are machined from a solid piece of material. The H Series and W Series general purpose couplings are ideal for heavy-duty uses such as pumps, lead screws, positioning systems and processing equipment. The MC Series has higher torque capacity and torsional stiffness with two sets of flexures for increased parallel offset - good for pumps, conveyor systems and industrial processing equipment.