A Bevel Gear is shaped like a right circular cone with most of its tip cut off. When two bevel gears mesh their imaginary vertexes must occupy the same point. Their shaft axes also intersect at this point, forming an arbitrary non-straight angle...
A Spiral Gear is a gear that operates on non-intersecting, non-parallel axes. The term crossed helical gears has superseded the term spiral gears. There is theoretically point contact between the teeth at any instant. They have teeth of the same or...
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