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Critical Speed/Strength

Acme Critical Speed/Strength

CRITICAL SPEED: ACME INCH SCREWS

TO USE THIS CHART: Determine maximum travel rate required. Determine screw length L. Find point at which travel rate and screw length intersect and select a screw above and to the right of that point.


COLUMN STRENGTH: ACME INCH SCREWS

TO USE THIS CHART:

Find a point at which the maximum length between bearing support and acme nut intersects the maximum load. Be sure the screw selected is above and to the right of that point.

Acme Screws are limited by both Maximum Static Load and Slenderness Ratio. See pages 12-13 for reference description on A-B-C-D end fixity.

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