A Series

Flexible Aluminum Set Screw Couplings

The Helical A Series Flexible Aluminum Couplings meet performance demands across a wide range of applications, including drive systems for encoders, instrumentation, lead screws, small pumps, feed rollers, and other light to medium-duty uses requiring torsional flexibility. As Helical’s most popular coupling, the A Series offers an array of options and diameter sizes, allowing customization to fit specific applications. These couplings require no maintenance, accommodate shaft sizes from 3/32” to 3/4”, and are available in 7075-T6 Aluminum Alloy with a set screw attachment.

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