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FEATURES
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A
Series - Aluminum

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- 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.
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FEATURES
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H Series - Stainless
Steel

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- 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.
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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. |
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| 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. |