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Since 1958
Helical Products Company, Inc.

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We manufacture single piece Flexible Couplings, U-Joints, Machined Springs, and Power Transmission Couplings utilizing HELI-CAL® Flexure technology

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A and H Series Flexible Couplings

FEATURES


A Series - Aluminum

  • 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 is required.  Helical's most popular coupling.

FEATURES


H Series - Stainless Steel

  • High torque capacity
  • High fatigue resistance
  • Corrosion resistant steel (CRES)

The H Series coupling is ideal when high strength, excellent fatigue resistance and high torsional stiffness is called for in your application. The H Series' premium performance is designed for applications requiring a heavy-duty coupling, such as drive systems, small pumps, and gear boxes.

SHARED FEATURES OF THE A and H 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 or H Series to your specific applications. A and H Series options include set screw or integral clamp attachments and inch or metric bores.

ATTACHMENT METHODS

Integral Clamp: ACR/HCR



Set Screw: AR/HR

(Two each end @ 120°)

INTERNAL CONFIGURATION

Relief *



Major and minor diameter shafts may enter flexure area during operation

* Dark areas indicate relief within the coupling interior

HOW TO ORDER
Coupling part numbers consist of four sections. To determine the correct numbers/letters for each section of a specific coupling part number, please refer to the charts on the following pages.

Example

* Refer to "Standard Bore Diameters" section in chart

1. Basic Model Number: 
   
Choose material and attachment method.

    ACR = Aluminum, integral clamp
    AR =   Aluminum, set screw
    HCR = Stainless steel, integral clamp
    HR =   Stainless steel, set screw

2. Outside Diameter Designator:
This three-digit number represents the coupling outside diameter. Based on the Performance Data in the middle of the chartt, select the Outside Diameter Designator by moving left to the appropriate diameter.

3. Major Bore Designator: 
The larger of the two bores, its diameter is expressed in either 32nds of an inch (-8 equals 1/4 inch) or in millimeters (6mm). Please review your selection to determine if both bores can be made in the size coupling you have selected in
2. It is important that the larger bore be stated first.

4. Minor Bore Designator: 
The smaller of the two bores, is expressed the same as the Major Bore Designator. Either bore can be inch or mm.

H Series Chart  ·  A Series Chart · Special Bore Configurations · Standard Coupling Guide · Home

901 W. McCoy Lane · P.O. Box 1069 · Santa Maria, CA 93456-1069
Phone: 805-928-3851 · Fax: 805-928-2369
 
sales@heli-cal.com ·
engineering@heli-cal.com

Copyright © 1997-2007 Helical Products Company, Inc. -- All rights reserved.