Bevel Gear
Spiral Bevel Gears have a helical angle spiral teeth.
Spiral Bevel gear
Straight Bevel Gears have tapered conical teeth which intersect the same tooth geometry. Bevel gears are used to transmit motion between shafts with intersecting center lines. The intersecting angle is normally 90 deg but may be as high as 180 deg. When are mating gears are equal in size and the shafts are positioned at 90 degrees to each other. they are referred to as miter gears. The teeth of bevel gears can also be cut in a curved manner to produce spiral bevel gears, which produce smoother and equieter operation than straight cut bevels.
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