How to apply direct-drive linear servomotors: a novel direct-drive linear servomotor with only one moving part needs special design considerations.(BASICS OF DESIGN ENGINEERING: MOTION CONTROL) From: Machine Design | Date: May 8, 2008| Author: Repas, Robert | COPYRIGHT 2008 Penton Media, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

There's a growing demand for smaller linear motors. Manufacturers have developed new direct-drive linear servos in response. Standard rotary servomotors spin lead-screws or pull belt drives to produce linear motion. Direct-drive linear motors are more likely to use self-supporting 3[PHI] coils to position a linear shaft filled with permanent magnets. Typical of motors taking this approach is the Quickshaft Series from Faulhaber Corp., Germany.

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