Why are the helical angles of helical gears generally between 8 and 20 degrees?
Helical gear helical angle is too small, will lose the advantages of helical gear, but too big will cause a lot of axial force. So, generally take 8-15 degrees, commonly used 8-12 degrees
Helical gears (helical, gear) are not entirely spiral gears. It should be said that the spiral gears are the meshing of two helical gears, which are distinguished by their different directions in the spatial transfer force. The ordinary spur gears enter the meshing simultaneously along the tooth width, thus producing shock, vibration and noise, and the transmission is not smooth. The helical gear drive is better than the straight gear, and it can join the center distance for high speed and heavy load. The helical gear reducer is a new type of gear reducer. The optimization module combination system, advanced design concepts, with small volume and light weight, large transmission torque, stable starting, the transmission ratio grading fine, can be arbitrarily connected and selecting the installation location according to user requirements
Because the angle is too small, it will lose the advantages of helical gears, but too large will cause great axial force. So, generally take 8-15 degrees, commonly used 8-12 degrees.
