Harmonic drive gearing has zero backlash.(Brief Article)

From: Design News | Date: December 6, 1999| Author: | Copyright information

This new harmonic drive gearing has a 30:1 gear ratio, suitable for applications such as semiconductor chip mounting, high speed SCARA robots, and high speed assembly equipment, the manufacturer says. These high output-speed applications have traditionally used planetary gears, with backlash of 3 to 6 arc-min., but the new 30:1 harmonic drive gearing provides near-zero backlash and 1.5 arc-min positional accuracy.

"They ...

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