Profile: Helical Products Co., Inc. manufactures single piece flexible couplings, U-joints, machined springs and power transmission couplings. We are accredited with ISO 9001:2000 certification. Our accessory line includes adapter hubs, bore reducers, shaft collars and solid couplings. Our A series flexible couplings are used in applications such as drive systems for encoders, instrumentation, lead screws, small pumps and feed rollers. Our W series are used in wide range of applications from driving components with light torque requirements, such as encoders & tachometers to lead screws and pumps requiring greater torque.