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 337–348 of 428 results

  • AEM100-8MM-8MM Helical A Series Flexible Aluminum Set Screw Couplings

    AEM100-8MM-8MM

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

  • AEM112-12MM-10MM Helical A Series Flexible Aluminum Set Screw Couplings

    AEM112-12MM-10MM

    Outside Diameter: 1 1/8 in
    Length: 1 1/2 in
    Major Bore: 12 mm
    Minor Bore: 10 mm

  • AEM112-16-10MM Helical A Series Flexible Aluminum Set Screw Couplings

    AEM112-16-10MM

    Outside Diameter: 1 1/8 in
    Length: 1 1/2 in
    Major Bore: 1/2 in
    Minor Bore: 10 mm

  • AEM112-16-12 Helical A Series Flexible Aluminum Set Screw Couplings

    AEM112-16-12

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

  • AR037-4-3 Helical A Series Flexible Aluminum Set Screw Couplings

    AR037-4-3

    Outside Diameter: 3/8 in
    Length: 3/8 in
    Major Bore: 1/8 in
    Minor Bore: 3/32 in

  • AR050-3MM-3MM Helical A Series Flexible Aluminum Set Screw Couplings

    AR050-3MM-3MM

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

  • AR050-4-3 Helical A Series Flexible Aluminum Set Screw Couplings

    AR050-4-3

    Outside Diameter: 1/2 in
    Length: 1/2 in
    Major Bore: 1/8 in
    Minor Bore: 3/32 in

  • AR050-4-4 Helical A Series Flexible Aluminum Set Screw Couplings

    AR050-4-4

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

  • AR050-4M-4M Helical A Series Flexible Aluminum Set Screw Couplings

    AR050-4M-4M

    Outside Diameter: 1/2 in
    Length: 1/2 in
    Major Bore: 0.12 in
    Minor Bore: 0.12 in

  • AR050-5-5 Helical A Series Flexible Aluminum Set Screw Couplings

    AR050-5-5

    Outside Diameter: 1/2 in
    Length: 1/2 in
    Major Bore: 5/32 in
    Minor Bore: 5/32 in

  • AR050-8-3MM Helical A Series Flexible Aluminum Set Screw Couplings

    AR050-8-3MM

    Outside Diameter: 1/2 in
    Length: 1/2 in
    Major Bore: 1/4 in
    Minor Bore: 3 mm

  • AR062-4-4 Helical A Series Flexible Aluminum Set Screw Couplings

    AR062-4-4

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

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