A Series

Helical A Series Flexible Aluminum Couplings meet performance demands over a wide range of applications, including drive systems for encoders, instrumentation, lead screws, small pumps, feed rollers and anywhere a light to medium duty, torsionally flexible coupling is required.

Helical A Series Flexible Aluminum Couplings is Helical’s most popular coupling due to an array of options, in a variety of diameter sizes, that allows you to tailor the A Series to your specific applications. Helical A Series Flexible Couplings feature no maintenance and shaft sizes from 3/32” to 3/4”. Helical A Series Flexible Aluminum Couplings are available in a 7075-T6 Aluminum Alloy material, and with an Integral Clamp or Set Screw attachment.

Showing 373–384 of 428 results

  • AR100-12-8 Helical A Series Flexible Aluminum Set Screw Couplings

    AR100-12-8

    Outside Diameter: 1 in
    Length: 1 in
    Major Bore: 3/8 in
    Minor Bore: 1/4 in

  • AR100-12MM-8 Helical A Series Flexible Aluminum Set Screw Couplings

    AR100-12MM-8

    Outside Diameter: 1 in
    Length: 1 in
    Major Bore: 12 mm
    Minor Bore: 1/4 in

  • AR100-8-8 Helical A Series Flexible Aluminum Set Screw Couplings

    AR100-8-8

    Outside Diameter: 1 in
    Length: 1 in
    Major Bore: 1/4 in
    Minor Bore: 1/4 in

  • AR112-12-10 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-12-10

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 3/8 in
    Minor Bore: 5/16 in

  • AR112-12-12 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-12-12

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 3/8 in
    Minor Bore: 3/8 in

  • AR112-12-8 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-12-8

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 3/8 in
    Minor Bore: 1/4 in

  • AR112-16-10 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-16-10

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 1/2 in
    Minor Bore: 5/16 in

  • AR112-16-12 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-16-12

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 1/2 in
    Minor Bore: 3/8 in

  • AR112-16-16 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-16-16

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 1/2 in
    Minor Bore: 1/2 in

  • AR112-16-8 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-16-8

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 1/2 in
    Minor Bore: 1/4 in

  • AR112-20-16 Helical A Series Flexible Aluminum Set Screw Couplings

    AR112-20-16

    Outside Diameter: 1 1/8 in
    Length: 1 1/8 in
    Major Bore: 5/8 in
    Minor Bore: 1/2 in

  • AR125-10MM-12 Helical A Series Flexible Aluminum Set Screw Couplings

    AR125-10MM-12

    Outside Diameter: 1 1/4 in
    Length: 1 1/4 in
    Major Bore: 10 mm
    Minor Bore: 3/8 in

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