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Visit Kelly on Static from Static control expert Dr. Kelly Robinson, president of Electrostatic Answers; Kelly has 27+ years of experience in problem-solving and consulting.

Visit Tim's Web Lines to handle and wind your paper, film, foil, and similar products. Take advantage of Tim’s 25+ years just like over 100 converters have.


Visit Mark's Coating Matters from fluid coating expert Mark D. Miller; Process improvement and project management for precision roll-to-roll coating applications.

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Visit Yo’s Yarns to share the thoughts, impressions, experiences, and news that impact the converting industry. . . or anything else that happens to be on her mind!

Visit Tom's Poly Ploys, where Tom will be writing on various topics that the typical polymer processor would encounter on the job.


Amacoil Drive Nut Offers Backlash-Free Linear Motion

 ASTON, PA | Amacoil offers the Amacoil-Uhing Model RS4 drive nut as a design alternative to screw-based linear drive systems. Provides backlash-free linear motion and simplifies changes to linear pitch. The linear pitch of an RS4 nut is factory-set at one of five different linear pitch settings. Pitch wedges between the drive bearings hold them at a specific angle relative to shaft. This angle determines the linear pitch. Changing pitch is simply a matter of replacing the pitch wedges with a different set of wedges.

The smooth, backlash-free linear motion provided by RS4 nuts is achieved by specially machined rolling ring bearings which are in constant single-point contact with the drive shaft, even during reversal. This assures that any rotational movement of the shaft is transferred smoothly and without play from shaft to bearings.


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