Definitions for "Helical Gear"
Keywords:  quieter, gear, teeth, mesh, smoother
A type of gear in which the teeth are cut at a slanting angle to the gear's circumference. A helical design produces an even, constant tooth loading in a gearset, thereby reducing noise.
A gear that has the teeth cut at an angle to the center line of the gear. This kind of gear is useful because there is no chance of intermittent tooth-to-tooth operation because there are at least two teeth engaged at any time. Also helical gears tend to operate quieter than straight-cut gears.
In such type of gear the teeth are cut at an angle to the shaft and two teeth are always meshing. It reduces noise.