1. Gear type: Select the appropriate gear type according to the application and working conditions, such as spur gears, helical gears, bevel gears, worm gears, etc.

2. Gear material: According to the working conditions and load of the gear, select the appropriate material, such as low carbon steel, medium carbon steel, alloy steel, cast iron, etc.

3. Accuracy level: According to the use occasion and requirements, select the appropriate accuracy level, such as level 8, level 9, etc. The accuracy level will affect the transmission accuracy, noise, life and manufacturing process of the gear.

4. Gear diameter: Select the appropriate gear diameter according to the application and space conditions.

1. Cylindrical gears are widely used in various mechanical equipment, such as automobiles, engineering machinery, power tools, machine tools, ships, etc.
2. Cylindrical gears are mainly used to transmit the force of spatial motion, so they are often used in situations where deceleration and steering are required.