SANTA MARIA, CA., November 9, 1998--The new PF (PowerFlex) Series of couplings by Helical Products Company is the firm’s latest and best offering yet to the world of power transmission products, according to senior Helical design engineer, Norman Paul.

The PowerFlex is essentially a very cost effective coupling, the benefits of which include: no lubrication, no maintenance, no keyway requirements and zero backlash. The product provides more torque for less money than past Helical power transmission coupling offerings of the same size range (outside diameters 2, 2.5 and 3 inch).

Four key elements have been incorporated into the design of the PowerFlex: the HELI-CAL Flexure, the convenience of removable tapered bushings, high torque capacity (up to 1800 lbin) and generous misalignment capability (4 degrees angular).

Paul says that "early on in the PowerFlex design process it was recognized that the time tested and proven HELI-CAL Flexure should be utilized as the key coupling component. Use of the Flexure simplifies the manufacturing process, lowers production costs and reduces lead times, all of which means faster delivery and lower prices." The HELI-CAL Flexure is a flexible helix (curved) beam machined from one piece of material into a specific configuration that incorporates special design requirements, performance features and characteristics.

"After reviewing various combinations of coil thickness, number of coils, number of starts and flexure ID’s, we arrived at a HELI-CAL double start Flexure configuration that accommodates sizable misalignments, and provides substantial torque capability, high torsional stiffness, and reasonable pricing. This represents value for the customer, which is always a key goal when we develop a new series of any product," Paul emphasizes.

Because shaft sizes are contained in the tapered bushings, PowerFlex couplings can be assembled quickly to suit customer needs and delivered fast. Customers also may make coupling bore size changes themselves.

The PowerFlex series is available in both inch and millimeter bore sizes, in aluminum or stainless steel. Most sizes are available for immediate delivery.