Inertia matching made easy. From: Machine Design | Date: February 10, 2000| Author: Pike, Jeff | COPYRIGHT 2000 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

Specifying a motor and reducer combination involves calculating accelerations, motor torque, reduction ratios, and motor and load inertia. When the goal is to maximize load acceleration, as is often the case, load and motor inertia must match. The simplest solution would be to omit the reducer and select a motor with rotor inertia equal to the load inertia. But such a direct drive isn't possible in many applications, so a speed reducer inserted between the motor and load provides t...

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