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Escalators and moving walkways carry millions of people every day, from shopping malls and metro stations to airports and business centers, and they are expected to run without int... More Details

An electric motor cannot convert all the electricity it draws into mechanical power; some of it is inevitably turned into heat. For a single motor this heat may seem small, but in ... More Details

The only reliable way to understand how efficiently an electric motor truly runs is to measure it. The efficiency value printed on the nameplate is a reference obtained by the manu... More Details

The power and efficiency values printed on an electric motor's nameplate do not, on their own, tell you how the motor will behave in the real world. A motor heats up while running ... More Details

In industrial facilities that contain flammable gases, vapors, or combustible dust, selecting an electric motor goes far beyond a simple calculation of power and efficiency. In the... More Details

A three-phase induction motor works exactly as designed when all three phases are supplied with voltages of equal magnitude and a precise 120-degree phase angle between them. This ... More Details

Belt-and-pulley drive is one of the most common ways to transfer a motor's power to a load. From a ventilator to a stone-crushing line, from a machining tool to a conveyor, many sy... More Details

One of the most critical components determining the life and reliability of an electric motor is the bearing system. This element carries the shaft, makes rotation possible and tra... More Details

The rotational speed of an electric motor is determined not only by the supply frequency but also by how many magnetic poles are created in the stator. As the pole count increases,... More Details

Choosing the right electric motor is not enough on its own; the cable that feeds that motor must also be chosen correctly. A wrongly chosen supply cable becomes the weak link of th... More Details

There is only one sound way to understand whether switching to an efficient motor makes sense: do the math. The sentence "a high-efficiency motor saves energy" is true but abstract... More Details

Whenever an electric motor burns out in an industrial setting, the same question arises: should we rewind this motor or buy a new one? Rewinding is the process of stripping out the... More Details

How quickly a motor can bring a load to the desired speed depends on a critical quantity that is often overlooked yet determines both the starting behavior and the life of the moto... More Details

Looking only at the price tag when buying an electric motor is like seeing only the visible tip of an iceberg. The economic reality of a motor reveals itself across the years you r... More Details

How much load an induction motor can carry, how long it will last and under which conditions it can operate safely are all tightly bound to a single physical phenomenon: the temper... More Details

When evaluating the noise of an electric motor, there are two concepts frequently encountered in catalogs and on nameplates: sound power and sound pressure. These two quantities, w... More Details

At the heart of choosing an electric motor correctly lies understanding the relationship between three quantities: power, torque and speed. These three concepts, which are often co... More Details

The most critical mechanical component that determines the lifespan of an AC induction motor is the bearing, and the vast majority of these bearings are lubricated with grease. Gre... More Details

Induction motors draw not only active power from the grid to do useful work, but also reactive power to build up their magnetic field. This reactive power never turns into work at ... More Details

When the weight of a rotor turning thousands of times per minute is not evenly distributed at every point, a silent war begins inside even though the motor appears to run flawlessl... More Details