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Flexure AR Series - Aluminum, Set Screw

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General purpose, light to medium duty. An economical, maintenance free coupling, used in a variety of applications.

Typical Applications
Used for encoder/ resolver applications, low torque pump, lead screw and various other applications.

Misalignment Compensation
5° angular, .010 inch parallel offset, .010 inch axial motion

Features
  • Light to medium duty
  • Non-magnetic
  • Economical
  • No maintenance

    The A Series meets 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/coupler is required. Helical's most popular coupling.

    Shared Features of the A Series
  • No Maintenance
  • Shaft sizes from 3/32 to 3/4

    An array of options, in a variety of diameter sizes, allows you to tailor the A Series to your specific applications. A Series options include set screw or integral clamp attachments and inch or metric bores.


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      Results 1 - 25 of 47 1 2 

    Item #

    D Outside Diameter

    L Length

    Size Bore Diameter

    Major Bore Diameter

    Minor Bore Diameter

    Momentary Dynamic Torque

    Torsional Rate

    AR050-3-3 0.500 in 0.500 in 0.094 in
    2.39
    mm
    3.00 mm 3.00 mm 3.7 lb·in 0.980 degree/lb·in
    AR050-4-3 0.500 in 0.500 in 0.125 in
    3.18
    mm
    4.00 mm 3.00 mm 3.5 lb·in 1.300 degree/lb·in
    AR050-4-4 0.500 in 0.500 in 0.125 in
    3.18
    mm
    4.00 mm 4.00 mm 3.5 lb·in 1.300 degree/lb·in
    AR062-4-4 0.625 in 0.620 in 0.125 in
    3.18
    mm
    4.00 mm 4.00 mm 7.1 lb·in 0.510 degree/lb·in
    AR062-5-4 0.625 in 0.620 in 0.157 in
    3.99
    mm
    5.00 mm 4.00 mm 6.7 lb·in 0.660 degree/lb·in
    AR062-5-5 0.625 in 0.620 in 0.157 in
    3.99
    mm
    5.00 mm 5.00 mm 6.7 lb·in 0.660 degree/lb·in
    AR062-6-4 0.625 in 0.620 in 0.188 in
    4.78
    mm
    6.00 mm 4.00 mm 6.2 lb·in 0.860 degree/lb·in
    AR062-6-5 0.625 in 0.620 in 0.188 in
    4.78
    mm
    6.00 mm 5.00 mm 6.2 lb·in 0.860 degree/lb·in
    AR062-6-6 0.625 in 0.620 in 0.188 in
    4.78
    mm
    6.00 mm 6.00 mm 6.2 lb·in 0.860 degree/lb·in
    AR075-4-4 0.750 in 0.750 in 0.125 in
    3.18
    mm
    4.00 mm 4.00 mm 10.0 lb·in 0.290 degree/lb·in
    AR075-5-4 0.750 in 0.750 in 0.157 in
    3.99
    mm
    5.00 mm 4.00 mm 10.0 lb·in 0.360 degree/lb·in
    AR075-5-5 0.750 in 0.750 in 0.157 in
    3.99
    mm
    5.00 mm 5.00 mm 10.0 lb·in 0.360 degree/lb·in
    AR075-6-4 0.750 in 0.750 in 0.188 in
    4.78
    mm
    6.00 mm 4.00 mm 9.8 lb·in 0.440 degree/lb·in
    AR075-6-5 0.750 in 0.750 in 0.188 in
    4.78
    mm
    6.00 mm 5.00 mm 9.8 lb·in 0.440 degree/lb·in
    AR075-6-6 0.750 in 0.750 in 0.188 in
    4.78
    mm
    6.00 mm 6.00 mm 9.8 lb·in 0.440 degree/lb·in
    AR075-8-4 0.750 in 0.750 in 0.250 in
    6.35
    mm
    8.00 mm 4.00 mm 8.6 lb·in 0.680 degree/lb·in
    AR075-8-5 0.750 in 0.750 in 0.250 in
    6.35
    mm
    8.00 mm 5.00 mm 8.6 lb·in 0.680 degree/lb·in
    AR075-8-6 0.750 in 0.750 in 0.250 in
    6.35
    mm
    8.00 mm 6.00 mm 8.6 lb·in 0.680 degree/lb·in
    AR075-8-8 0.750 in 0.750 in 0.250 in
    6.35
    mm
    8.00 mm 8.00 mm 8.6 lb·in 0.680 degree/lb·in
    AR087-10-10 0.875 in 0.870 in 0.313 in
    7.95
    mm
    10.00 mm 10.00 mm 15.0 lb·in 0.410 degree/lb·in
    AR087-10-6 0.875 in 0.870 in 0.313 in
    7.95
    mm
    10.00 mm 6.00 mm 15.0 lb·in 0.410 degree/lb·in
    AR087-10-8 0.875 in 0.870 in 0.313 in
    7.95
    mm
    10.00 mm 8.00 mm 15.0 lb·in 0.410 degree/lb·in
    AR087-6-6 0.875 in 0.870 in 0.188 in
    4.78
    mm
    6.00 mm 6.00 mm 19.0 lb·in 0.200 degree/lb·in
    AR087-8-6 0.875 in 0.870 in 0.250 in
    6.35
    mm
    8.00 mm 6.00 mm 17.0 lb·in 0.280 degree/lb·in
    AR087-8-8 0.875 in 0.870 in 0.250 in
    6.35
    mm
    8.00 mm 8.00 mm 17.0 lb·in 0.280 degree/lb·in
      Results 1 - 25 of 47 1 2 
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