Gearwheels play an important role among the mechanisms used in human life. First, Mesopotamia BC. It is known to be used in irrigation plants. Again BC. used in hourglass mechanisms. Later, the Romans used bronze and iron as their gear materials. They found that bronze and iron increase the gear life.
With the invention of steam engines in the 18th century, there have been significant developments in gear wheels. The question that comes to mind with these developments is nasıl How do the gear wheels work more efficiently? ”. It has been realized that the gear mechanisms must transmit high power and high speed. As a result of the studies, the referance pitch of diameter was found. The division of the division department took place in the middle of the 18th century and the gears began to standardize for the first time. In 1840, it was registered to the standards by having an above-the-tooth circle and a tooth-base circle.
In 1856 the first Gear cutting knife as invented and in 1899 the first internal Gear knife was invented.
At the end of the 18th century, with the development of the automotive industry and the start of mass production, gear wheels also developed in parallel.