ServoClass Couplings feature high torsional stiffness, zero backlash and low hysteresis to ensure repeatable precise positioning at speeds up to 10,000 rpm. Their robust design ensures precise system operation in automated 24/7 applications. That is especially true where stresses occur at increased speeds in a servo system. Designed with 304 stainless steel disc packs and 7075-T6 aluminum hubs, the couplings are inherently strong, durable and precisely balanced. To ensure precise alignment of the assembled components, ISO 4762 CL12.9 corrosion resistant socket head cap screws are used with a carefully controlled assembly process. The couplings are available in single and double flex models in inch and metric bore sizes from 0.157 in. (4mm) to 1.750 in. (45mm). All models and sizes feature clamp style hubs and operate in temperatures from -22° to +212° F (-30° to +100° C).