What is the difference between a helical gear and a spur gear?
Bevel gear advantages: smooth transmission, low noise, high transmission power, stable performance, generally used in closed gear. Disadvantages: if the parts are slightly difficult to map.Spur gear advantages: easy processing, suitable for a wide range of open gear drive, mapping easy. Disadvantages: requirements are not high precision, slightly higher noise.
But because of the skew teeth, it produces a larger axial force, so it is necessary to have good axial positioning when taking helical gear so as to ensure the accurate meshing position.
The gear is what you said is not only the tooth is straight teeth, if so, the first is the different shape, and then the tooth surface is longer and the helical gear meshing area is larger, so the ability to transfer power is stronger.
