Inch Ball Screw Calculators - Nook Industries, Inc. PowerTrac Ball Screws and Nuts

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Nook Industries provides a complete selection of inch and metric Ball Screws, Roller Screws, Acme Screws, Lead Screws, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Actuators, HRC 60 Linear Shafting, Linear Bearings and Pillow Blocks to the Linear Motion Industry.

INCH and METRIC BALL
SCREW ASSEMBLIES

DIGITAL EDITION
	Linear Motion Design Guide: Page through Nook product catalog online.
ORDER Design Guide CD


	Ball Screw Application Engineering and Customer Service Phone Support 1-800-321-7800 216-271-7900 Email Support



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INCH AND METRIC BALL SCREW CALCULATORS
Horsepower or Kilowatt Ball Nut Life Unit Converter	Critical Speed Column Strength

INCH AND METRIC BALL SCREW CALCULATORS
HORSEPOWER – The amount of power needed to drive a load. The calculator takes the input shaft speed and the torque required for a given load and derives the amount of horsepower or kilowatts expended. It can also back-calculate either the torque or the speed resulting from a particular power requirement.
HorsePower	Kilowatt

BALL NUT LIFE – The expected life of a specific ball nut with a given load. The calculator derives the expected life in inches of travel (Inch Calculator), or the expected number of revolutions (Metric Calculator) of a ball nut operating at a load which is different than the rated dynamic load.
Inch Ball Nut Life	Metric Ball Nut Life


CRITICAL SPEED – The input speed which excites the resonant frequency of a system. The calculator uses the diameter, unsupported length and end fixity to determine the approximate rotational speed at which resonance will occur. It can also back-calculate to determine the diameter or length based on a specific screw rpm. See the Critical Speed Chart to verify the correct screw for the application.
Inch Ball Critical Speed	Metric Ball Critical Speed

COLUMN STRENGTH – The compression load at which a column will fail due to bending or buckling. The calculator uses the diameter, unsupported length and end fixity to determine the approximate minimum diameter required to support a given load. It can also back-calculate to determine the diameter or length based on a specific load. See the Column Strength Chart to verify the correct screw for the application.
Inch Ball Column Strength	Metric Ball Column Strength

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UNIT CONVERSION – Conversion between Inch and Metric units. The calculator converts the common unit values used throughout the Nook Industries web site.
Unit Converter

	Nook Industries awarded a spot on Network World's 2005 Enterprise All-Star list. Nook was selected for its CAD model web tool that lets customers configure and download products instantaneously.
			Nook Industries website reviewed in a MarketingSherpa Case Study. NookIndustries.com receives recognition for the usability of its website and 2D/3D CAD Model Library.

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NOOK INDUSTRIES, INC. - An ISO 9001:2000 Registered Company
4950 East 49th Street | Cleveland, Ohio 44125 | phone: (216) 271-7900 or (800) 321-7800 | fax: (216) 271-7020

Nook Industries provides a complete selection of inch and metric linear, mechanical and electromechanical actuators to the Linear Motion and Power Tarnsmission Industries. Modular Linear Actuators, Precision Profile Rails, Ball Screws, Roller Screws, Acme Screws, Lead Screws, Ball Splines, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Cylinder Actuators, HRC 60 Linear Shafting, Linear Slides, Bearings and Pillow Blocks.
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