Selecting and Sizing Ball Screw Drives

Reprint of Thomson Industries, Inc. Article by Jeff G. Johnson

Thomson Ball Screw Family

Thomson Ball Screw Family

The ball screw drive is an assembly that converts rotary motion to linear motion and vice versa.  The ball screw drive consists of a ball screw and a ball nut with recirculating ball bearings.  The connection between the screw and the nut is made by ball bearings that roll in the matching forms in the screw and ball nut.  The forces transmitted are distributed over a large number of ball bearings, giving a comparatively low relative load per ball.  With rolling elements the ball screw drive has a very low friction coefficient.  Ball screw drives typically provide mechanical efficiency of greater than 90% so their higher initial cost is often offset by reduced power requirements.

Click on the link below to download this complete White Paper.

http://www.electromate.com/db_support/downloads/Selecting_Sizing_Ball_Screw_Drivesv2.pdf

For more information, please contact:

Electromate Industrial Sales Ltd.
www.electromate.com
sales@electromate.com

Phone:  905-850-7447
Fax:      905-850-7451
Toll Free Phone: 877-737-8698
Toll Free Fax:   877-737-8699

Tags:  Ball Screw, Lead Screw, Ball Nut, Plastic Nut, Ball Screw Drive, Recirculating Ball Bearings

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