Helical Gears

HelicalGears

Helical gears have several advantages:

Noise Reduction: The teeth of a helical gear engage in small increments as opposed to the entire face engaging at once. This reduces the noise that is normally caused as gears transfer power.
Transfer of Power Between Non-Parallel Shafts: Helical gears allow for power to be transferred between non-parallel shafts.
Strength Output: Helical gears can handle more load than spur gears because the helical gear tooth is diagonally positioned and therefore effectively larger.
Smooth Operation: Because the teeth engage more gradually, helical gears offer smoother gear operation, reducing shock loads and causing less noise and vibration.
High Load-Carrying Capacity: Helical gears are preferred for heavy load applications.
Versatility: Helical gears could be used to transmit the motion and power between two parallel shafts and also between two non-parallel shafts.
Durability: Helical gears are more durable.
Efficiency: They are simple in design, efficient in operation, and cost-effective.