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Email: ctopar@e-jpc.com
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  • Light to medium duty
  • Non-magnetic
  • Economical
  • No maintenance
The A Series coupling 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 is required. Helical's most popular coupling.

  • 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 or H Series to your specific applications. A and H Series options include set screw or integral clamp attachments and inch or metric bores.
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Item #

Outside Diameter Designator

Outside Diameter (D)

Bore Designator

Momentary Dynamic Torque

Torsional Rate

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N/A 037 N/A N/A N/A 0.03 lb·in N/A Request Quote
N/A 050 N/A N/A N/A 0.06 lb·in N/A Request Quote
N/A 050 N/A 1/2 in N/A 4 N/A 3.5 lb·in N/A 1.3 degree/lb·in Request Quote
N/A 050 N/A 1/2 in N/A 4 N/A 3.5 lb·in N/A 1.3 degree/lb·in Request Quote
N/A 050 N/A 1/2 in N/A 4 N/A 3.5 lb·in N/A 1.3 degree/lb·in Request Quote
N/A 050 N/A 1/2 in N/A 4 N/A 3.5 lb·in N/A 1.3 degree/lb·in Request Quote
N/A 050 N/A 1/2 in N/A 3 N/A 3.7 lb·in N/A 0.98 degree/lb·in Request Quote
N/A 050 N/A 1/2 in N/A 3 N/A 3.7 lb·in N/A 0.98 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 6 N/A 6.2 lb·in N/A 0.86 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 6 N/A 6.2 lb·in N/A 0.86 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 6 N/A 6.2 lb·in N/A 0.86 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 6 N/A 6.2 lb·in N/A 0.86 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 6 N/A 6.2 lb·in N/A 0.86 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 6 N/A 6.2 lb·in N/A 0.86 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 5 N/A 6.7 lb·in N/A 0.66 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 5 N/A 6.7 lb·in N/A 0.66 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 5 N/A 6.7 lb·in N/A 0.66 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 5 N/A 6.7 lb·in N/A 0.66 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 4 N/A 7.1 lb·in N/A 0.51 degree/lb·in Request Quote
N/A 062 N/A 5/8 in N/A 4 N/A 7.1 lb·in N/A 0.51 degree/lb·in Request Quote
N/A 075 N/A 3/4 in N/A 8 N/A 8.6 lb·in N/A 0.68 degree/lb·in Request Quote
N/A 075 N/A 3/4 in N/A 8 N/A 8.6 lb·in N/A 0.68 degree/lb·in Request Quote
N/A 075 N/A 3/4 in N/A 8 N/A 8.6 lb·in N/A 0.68 degree/lb·in Request Quote
N/A 075 N/A 3/4 in N/A 8 N/A 8.6 lb·in N/A 0.68 degree/lb·in Request Quote
N/A 075 N/A 3/4 in N/A 8 N/A 8.6 lb·in N/A 0.68 degree/lb·in Request Quote
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