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   Power Transmission Technology Update        January 2013

Coupling Input Improves Worm Performance

From fretting to key wear to bearing life, standard worm speed reducers have issues that negatively affect their performance. Varvel's worm eliminates these problems with an integral input coupling. Check out the top 10 benefits of our unique connection along with other differentiating features.

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QA1 G Series Rod Ends

QA1's G Series are two-piece rod ends that feature a self-lubricating PTFE liner and a 300 series stainless steel body for the most demanding corrosive environments. Available in male and female, right and left hand thread, and in metric and inch dimensions. Studded configurations are also available for this series.

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Zero-Max Offers Overload Safety Couplings

Overload safety couplings from Zero-Max are available in special models designed for washdown applications. They clean up easily, wonít corrode, and operate in a wide temperature range. Providing torque limiting and coupling functions in a single, compact unit, these Torq-Tender overload safety couplings serve both as a safety device and as a coupling in a power transmission system.

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AutomationDirect Offers Entry Digital Stepper Drive

AutomationDirectís SureStep line of motion control products now includes a low cost of entry digital stepper drive in a compact package. The standard stepper drive operates with high-speed pulse input signals (Step and Direction, or jumper-selectable CW/CCW step) and has a selectable resolution range of 200 to 20,000 steps per revolution.

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Voith Adds Compression Type Coupling to Product Range

Permanent high stress levels and sub-standard components can lead to reduced equipment performance and reliability as a result of wear and failure of components. No one knows this better than the engineers of drivelines for heavy duty applications like steel mills, cement plants, and mining operations.

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SKF Launches Low Friction Hub Bearing Unit

SKF recently launched the SKF Low Friction Hub Bearing Unit, an energy efficient wheel end for cars. The product reduces friction by more than 20 percent compared to previous generations of SKF standard hub units,and provides CO2 savings ofup to 0.6 g per km.

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