At Motor Specialty Inc., when you are in the market for a new electric motor we are more than happy to supply. With over 70 years of experience, we can design or modify existing models to your specifications to meet your needs. However, before you start looking, here are a few things to keep in mind while searching for that perfect motor.

General Understanding (AC & DC Motors): Before you can decide what type of engine will work best for you, you need a general understanding of what an AC or DC motor is.

  • AC (Alternating Current) Motor: these are common motors, both because they are affordable and they are easy to rebuild. They are also extremely universal and come in two types, single-phase and three-phase.
    • Single Phase: Relies on the amount of power to control its torque (often less powerful)
    • Three Phase: Common in industrial settings. These motors run off of higher electrical power.
  • DC (Direct Current) Motor: More efficient, and have strong torque upfront. These motors are common in applications that require higher power. However, DC motors may require more maintenance than their counterparts.

How will you be using the motor? How your motor is going to be used is the biggest variable as to what kind of motor you should be purchasing. Motors have two main functions: constant speed or variable speed.

  • Constant Speed: Speed remains constant, does not fluctuate. DC motors are best for this type of speed.
  • Variable Speed: Speed of the motor can change as needed, such as in elevators & air conditioners. Either type of motor can work well in this application.

How efficient is the motor? If you buy a motor that is inefficient for your needs, it will waste time and potentially cost you more money. However, choosing a motor that fits your needs can save you time. Review your needs and be sure you are purchasing a motor that will fulfill all tasks you need it for.

How much torque & horsepower do you need? Similar to knowing your motor’s efficiency, you will also want to know how much torque & horsepower you may need. These two factors also play into your motor’s efficiency. It is usually best to go with a motor that has a bit more torque than needed, just to be sure it can handle your job. However, be sure to watch what you run your motor at. You don’t want to constantly run at horsepower capacity as this will shorten your motor’s life considerably.

Voltage? It is always best to know just how much voltage you will need. Some motors can run on batteries, but most need an outlet to be plugged into. It is always best to consult an electrician to ensure your battery can run at its full capacity for maximum efficiency.

Your Motor’s Lifespan? When choosing a motor it is always a good idea to know what you expect your return on the investment to be. The motor you choose for your application should always produce a positive return by lasting long enough to make money off of it.

These are just a few factors to consider when purchasing an AC or DC motor. At Motor Specialty, we have been in business since 1947 and use the highest quality parts in our motors. When you choose a Motor Specialty motor, you can be sure it will last you for years to come. Contact us today to learn more!