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Contact USA Inside SalesCatherine Topar
Ph: 203-334-7537
Fx: 203-334-7792
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 specificmore
Unit of Measure

Product Type

 Coupling

Series

 ACR

Type

 Integral Clamp Attachment

Material

 7075-T6 Aluminum Alloy

Finish

 Clear Anodize

Outside Diameter Designator

 075

Outside Diameter (D)

 3/4 in

Length (L)

 0.90 in

Size (+0.002 in/-0.000 in)

 0.188 in4.78 mm

Bore Designator

 6
Momentary Dynamic Torque1 9.8 lb·in

Torsional Rate

 0.44 degree/lb·in
Inertia2 0.66 x 10-5 lb.in.sec2
Screw Size3 4 - 40

Seating Torque

 10 lb·in

Center Line

 0.12 in

Min. Size

 0.118 in3.00 mm

Max. Size

 0.250 in6.35 mm

Max. Bore Diameter

 0.390 in9.90 mm

Bore Depth

 0.25 in5.35 mm

Note
  1. Shaft misalignments:
    Angular 5 degrees
    Parallel Offset 0.030 in. (0.060 in. T.I.R)
    Axial Motion ±0.010 in.
  2. Manufacturing dimensional tolerances unless otherwise specified are:
    fraction ± 1/64
    x.xx ± .01 in.
  • 1 Dynamic torque ratings are momentary values. For non-reversing applications, divide by 2. Divide by 4 for reversing applications. Should the torque ratings be marginal for your application.
  • 2 Inertia is based on smallest standard bore diameter.
  • 3 Metric Fasteners available on request