Gears Essay

570 Words2 Pages

historical development of modern gears Gears, also known as cogs, sprockets, ratchets have existed since the invention of rotating machinery, providing machines with constant mechanical advantages increasing torque or speed of the shaft. Some of the fist gears developed were wooden pegs fitting onto slots. These setups were often greased with animal fat or wax to allow smooth operation. Since then the main advances in gearing technology is the material they are manufactured from as well as the theory of gearing. With the introduction of casting, gears became much stronger, smaller and more durable. With new materials came new manufacturing techniques and material treatments increasing the life and durability of gears and at the same time decreasing the maintenance needed.[3] With the growing demand on gears in mechanical machinery and equipment the design of gears also changed along with the applications. Quieter and compact gears were developed and introduced into many mechanical machines such as the automobile allowing greater speeds and more power. The weight and efficiency was ...

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