How to Select Anti-Vibration Mounts for Machinery
Anti-vibration mounts, also called vibration isolators or AV mounts, sit between a machine and the surface it stands on. They absorb the vibration a running machine produces, so less of it passes...
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How Sea-Water (Raw-Water) Cooling Pumps Work
A raw-water pump, often called a sea-water pump, draws in untreated outside water, from the sea, a river or a cooling supply, and circulates it to carry heat away from an engine or a piece of...
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What Is a Flexible Coupling and When Do You Need One?
A flexible coupling is a mechanical part that joins two rotating shafts, such as a motor shaft and the shaft of the machine it drives, so that power passes from one to the other. Unlike a solid,...
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How Electromagnetic (Fail-Safe) Brakes Work
An electromagnetic brake is fitted behind an electric motor to hold or stop its shaft. A fail-safe brake has three main parts:
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Worm Gear Motors: How They Work and Where They Are Used
A worm gear uses a screw-shaped part, called the worm, to turn a gear wheel called the worm wheel. Each rotation of the worm pushes the teeth of the gear wheel only a little, so the output is much...
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Motor Efficiency Classes Explained: IE1 to IE4
Motor efficiency classes are a standard way of ranking how well an electric motor turns the electrical power it draws into useful work. They are set by the international standard IEC 60034-30-1,...
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What Is a Shaft-Mounted Gear Motor? Uses and Advantages
A shaft-mounted gear motor is a gear motor whose output shaft mounts directly onto the shaft of the machine it drives, with no coupling in between. The gearbox has a hollow output shaft, a bore...
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What Is a Gear Motor? How Gear Motors Work
A gear motor is an electric motor combined with a gearbox in a single unit. The motor produces the power, and the gearbox turns that power into greater torque at a slower, controlled speed.
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Helical Gear Motors: Why Helical Gearing Is Used
A helical gear is a gear whose teeth are cut at an angle across the face, rather than straight across. Because the teeth are slanted, they slide into contact gradually as the gears turn, instead...
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Bevel Gearing Explained: How a Bevel Gear Motor Changes Drive Direction
A bevel gear is a gear with teeth cut on a cone-shaped, mushroom-like face rather than on a flat rim. Two bevel gears meshing together let a drive shaft change direction, most commonly turning it...
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