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Helical Gear Function
Aug 09, 2018

Not all gears have straight, axis-aligned teeth. Worm gears' teeth are arranged around a cylinder-shaped gear like a screw; spur or helical gears interlock with the screw-like worm gear so that the axes are perpendicular. The worm usually drives the gear, providing a high level of speed reduction for applications such as textile looms, packaging machinery, material handling and conveyor systems. Helical gears are refined spur gears with helically angled teeth; these angled teeth engage more fully than straight-toothed spur gears as well as providing far smoother, quieter functioning. Helical gears can also be aligned parallel or crossed, allowing gears to transmit torque perpendicularly for a broader number of applications.

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