Gear types

Screw gears (crossed helical gears)

Screw gears (crossed helical gears)

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Screw gears or crossed helical gears are hyperboloid gears that allow the skew mating of the gear shafts! https://youtu.be/9UXIYhE8z_s With the gears considered so far, the axes of rotation are always parallel when...
Straight-cut toothing

Spur gears (straight-cut gears)

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Straight-cut gears (spur gears) are the simplest type of toothing. In a spur gear, up to 3 teeth are in mesh at the same time. https://youtu.be/iYZR8oAr0cY If the teeth of a toothed gearwheel...
Rack and spur gear

Rack (toothed bar)

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Racks (toothed bar) allow the rotary motion of a spur gear to be converted into a straight-line motion of the rack. https://youtu.be/iYZR8oAr0cY While only rotary motions occur with conventional cylindrical gears, a rack...
Pinion and gear of a bevel gearbox

Bevel gears

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In bevel gears, the axes of the gears are at right angles to each other. Bevel gears are used to change the spatial direction of rotation. https://youtu.be/bOowIc54vL4 Introduction In contrast to cylindrical gears, where...
Globoid worm und globoid worm gear (globoid worm drive)

Worms and worm gears

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With a worm gear, high loads can be transmitted at a high transmission ratio. https://youtu.be/eNL3aAVhD9M Operating principle A special design of the gear wheel is the so-called worm. In this case, the tooth winds...

Overview of gear types

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Depending on the shape of the gears and the type of toothing, gears can be classified as spur gears, bevel gears and worms or worm gears. https://youtu.be/iYZR8oAr0cY The figure below shows a selection...