Helical gears are circular gears with angled rather than straight teeth. The angled design of the teeth causes them to engage other gears differently than spur gears, which have straight teeth. Helical gears offers maximum dia 2000mm width 600 mm module 1 to 20. As properly matched helical gears come in contact with one another, their level of contact increases gradually, rather than engaging the entire tooth at once. In mechanical systems, this contact causes less impact loading and provides smoother, quieter operation. Helical gears are also stronger and longer lasting than spur gears.
