October 7, 2011—Developed for API 610 service, Torsiflex-i flexible disc couplings feature a robust disc pack design, allowing for greater torque load in a smaller size, which results in lower weight. The couplings lower weight and longer bearing life yield a lower cost per application. Max bores matched to NEMA motor shafts provide up to a 60 percent weight savings. A plug-in spacer design allows installation and removal without disturbing the hubs. All models are ATEX compliant and come standard with a zinc phosphate coating, a built-in anti-flail feature, and inch series hub attachment screws (metric available). Torsiflex-i couplings are now available with Torsi-Lock hubs. Torsi-Lock offers the ease of a slip fit with the power of a shrink fit. Ameridrives Couplings has responded to industry demand for a cold-install hub that provides the secure torque transmission and balance repeatability of an interference fit. Ameridrives combined their Ameriloc shaft locking devices with Torsiflex-i to provide a fully pre-engineered solution that meets the balance requirements of API 610. Cold installation of Torsiflex-i couplings with Torsi-Lock hubs means "No hot work permits" providing added safety and productivity in hazardous environments. Torsi-Lock hubs provide easy, repeatable removal and installation, and eliminate fretting of hub to shaft. The hubs compensate for variances in shaft spacing-units can be slipped on and fixed in the needed location. The hub and locking device are balanced and match-marked to assure optimum balance performance.

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