A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.
Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
Worldwide's Aluminum (CALM) series right angle worm gear reducers are designed with metric center distances and NEMA C-Face quill style motor input flanges which allow users a much greater supply of off-the-shelf standard NEMA motor input choices. Metric center distances allow for easy installation into existing applications, while imperial output bore dimensions allow for the use of standard U.S. imperial dimension head shafts and key sizes. The aluminum housing is fin cooled and offers a greater degree of corrosion resistance not found in cast iron worm gear units.
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