Helical gears are one type of cylindrical gears with slanted tooth trace. Compared to spur gears, they have the lar

Helical gears are one type of cylindrical gears where the teeth are curved into a helix shape.  Helical Gea

They have the larger contact ratio and excel in quietness and less vibration and able to transmit large force. A pair of

Helical gears are one type of cylindrical gears with slanted tooth trace. Compared to spur gears, they have the lar