Conical gears, also known as bevel gears, are used for power transmission between intersecting shafts. Compared to cylindrical gears, they can change the direction of transmission. The single-stage gear ratio can reach up to 6, even up to 8.

1. Straight and helical bevel gear designs, manufacturing, and installation are relatively simple, though they produce more noise, suitable for low-speed drives (<5 m/s); the power transmission of straight bevel gear drives can reach 370 kW, with a peripheral speed of 5 meters per second. Helical bevel gear drives operate smoothly with higher load-bearing capacity, but are more difficult to manufacture and are less commonly used.

2. The helical bevel gears feature smooth transmission, low noise, and high load-bearing capacity, making them suitable for high-speed, heavy-duty applications. The helical bevel gear transmission operates smoothly, capable of transferring power up to 3,700 kW and peripheral speed over 40 m/s.