Spiral bevel gear - Ringgearpinions

Spiral bevel gear, or bevel gear in general, is a gear in which the teeth are skewed, and not all teeth engage together, to allow the wheel to turn freely. It is a set of gears which are offset from each other, so as to form a ‘deformed’ shape, and is sometimes used to form the teeth of another gear, as when a spur gear is used to form the teeth of a helical gear.

This type of gear is used primarily in the mechanical arts, to form universal joints, transmissions, or differentials. Spiral bevel gears are gears with teeth that have a spiral or helical shape. They are also called worm gears, screw gears, helical gears, or screw-like gears. A bevel gear is a toothed wheel that is used to transmit power. It is also called a bevel-cut gear (a cutter gear) which is produced by cutting a bevel into the teeth of a circular shaped box, then cutting along the bevel to form the teeth into a curve

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