The number of teeth of straight bevel gear meshing at the same time in transmission is relatively small, which is easy to produce impact, unstable transmission and loud noise.
The large and small gears of helical bevel gear have equal and opposite helix angles, and their overlap is significantly greater than that of stainless steel bevel gears. Therefore, the noise and vibration are significantly reduced during high-speed operation. At the same time, the number of teeth of the small gear of spiral miter gears can be relatively reduced, thereby obtaining a larger transmission ratio and compact structure; when the helical gear teeth are meshing, the meshing line of the gear teeth is changing, and the load is gradually added and then gradually removed, so the transmission is relatively stable, with less impact, vibration and noise, which is suitable for high-speed and heavy-load transmission.