The helical gear is not absolutely the spiral gear. That means the latter is the combination of two helical gears for meshing. They are distinguished by the different directions of the transmission force in the space. The ordinary spur gear accomplishes the meshing with all the teeth at the same time along the space of interval. It generates much vibrating noise caused by impact, as well as unstable transmission.

The helical gear is superior to the spur gear and it can shorten the central pitch, suitable for using in the machine with heavy load at high speed. The reducer with helical gear is a fresh new speed reduction gearing device. With optimized composite module system and advanced design, our product is small in volume and light in weight. It features large transmission torque, stable start and precise grading on gear ratio. This product is available in arbitrary connection and a variety of installation positions for selection as required.