Zero-Max”s ServoClass Couplings are designed for precision positioning requirements and high reverse load in challenging AC and DC servomotor applications. The couplings provide zero backlash and low hysteresis. They are a good fit for applications requiring high speed reversing loads and accurate positioning repeatability. These applications include automation, packaging, semi-conductor assembly and virtually any system using ball screws and servo motors. Three new sizes have been added to the Zero-Max ServoClass coupling line to support bore diameters from 0.875 in (20mm) to 1.378 in. (35mm) and operating torque from 3937 to 9843 in. lbs (100 to 250 Nm). Additional sizes are available starting, with the smallest bore size 0.157 in (4 mm) and larger. All couplings are manufactured of RoHS* compliant materials. They are lightweight and are designed with 304 stainless steel disc packs and 7075-T6 aluminum hubs and center members. They are available in single- and double-flex models in inch and metric sizes. All models and sizes feature clamp-style hubs with corrosion-resistant socket head cap screws.