﻿ What is the number of gear?
Shenzhen ZhaoWei Machinery & Electronics Co. Ltd

# What is the number of gear?

2019-07-29 16:22:05
Each of the raised portions on the gear for engagement is referred to as a tooth. Generally, these raised portions are arranged in a radial pattern. It is used to contact similar raised portions on the mating gears, thereby resulting in continued meshing of the gears.

The total number of teeth on the entire circumference of the gear is called the number of gear and is generally indicated by the letter z.

Number of teeth and gear ratio
Many people may ask such a question before the use of the reducer - the gear ratio, what is the gear ratio of the reducer? How is the gear ratio of the reducer calculated?
1. In a pair of gears, a gear with a small number of teeth is called a pinion gear, and a gear with a large number of teeth is called a large gear. When the number of teeth is equal, the drive gear is called a pinion gear, and the driven gear is called a large gear.
2. In an external gear, the operation is reversed, the pinion rotates to the right, and the large gear rotates to the left.
3. In a pair of internal gears, the two gears run in the same direction.
4. In a pair of gears, the number of running and the number of teeth are inversely proportional. The number of revolutions of the pinion gear is larger than that of the large gear. The gear ratio of the ZF reducer is as follows:
Gear ratio i = the number of large gear teeth / the number of small gear teeth
Worm gear: Gear ratio i = the number of worm gears / the number of worms

What is a gear reducer?

The gear reducer is a speed reduction mechanism for connecting equipment. Its main function is to reduce the output speed of the drive motor and increase the torque. According to the structure and use of the reducer, the commonly used reducer equipment has planetary gear reducer, cylindrical gear reducer and DC reducer, worm gear reducer, hollow cup reducer, etc.
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