Different nature
1. Bevel gear: a gear used to transfer motion and power between two intersecting axes.
2. Helical gear: reducer.
Different characteristics
1. Bevel gear features: the intersection angle between two shafts of bevel gear is equal to 90 ° (but it can also not be equal to 90 °).
2. Helical gear features: small volume, light weight, large transmission torque, stable starting, fine transmission ratio grading, and can be connected arbitrarily and selected at various installation positions according to user requirements.
Helical gears are not complete helical gears. It should be said that the helical gear is the meshing mode of two helical gears, which can be distinguished in different force transmission directions in space. Ordinary spur gears mesh along the tooth width at the same time, resulting in impact vibration noise and unstable transmission. Helical cylindrical gear transmission is better than straight cylindrical gear transmission, and compact center distance is adopted in high-speed and heavy load.
