1. Straight bevel gear is the most basic bevel gear. The processing is simple, but the transmission accuracy is too poor, and the instantaneous transmission ratio is not accurate. It is only transmitted as a general change of direction, and the speed and transmission ratio requirements are not strict. , Such as the lifting and lowering of the working table of the bull's head planer, the operating shaft, etc., suitable for low-speed organization. To

2. The power of the spiral bevel gear is the best, and the functional parameters in all aspects are the best. There is a set of spiral bevel gears inside the drive shaft and the rear axle of the car. Its functions are as follows:
Advantages: high transmission power, low friction resistance, accurate instantaneous transmission ratio, large transmission torque, and particularly suitable for high-speed transmission.
Defect: high production cost. Because of the factors of production and installation, it is difficult to grasp the best coincidence degree, and it needs to be smooth. The best is oil bath smoothness.
 
3. Helical bevel gear is a modified type made on the basis of spur bevel gears. Compared with straight bevel gears, some defects have been improved, such as: the instantaneous transmission ratio is relatively more accurate, the transmission accuracy is higher, and the transmission The power is higher than that of a straight bevel gear. To put it simply, the transmission is a bit easier than a straight bevel gear, but the meshing degree will be best because of the production factors. It is suitable for the speed is not too high. Organization needs to be smooth.