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 are 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 »
Adapting from NEMA "U" Series frame to NEMA "T" Series Motors
Continuing improvement in insulation and winding materials has allowed the motor industry to progressively pack more horsepower into smaller frames. Adapt-O-Mounts form a comprehensive line of transition base fixtures that match these new, smaller re-rated motors to older mountings - simply, easily and inexpensively. They are specifically designed to position the axial center lines and ends of the shaft extension identically with those of the original motor.