hydraulics

Hydraulics or hydraulic drive is a drive system based on pressure energy and the physical incompressibility of a liquid.

In the ratio of the size of the components to the transmitted power, it is among the most powerful and most accurate. Among the advantages are the simplicity of the mechanisms, high power and precision with small dimensions, the possibility of energy transmission through flexible members, power variation with small losses and high efficiency. Disadvantages of this type of drive include expensive operation and maintenance, power losses due to heat, imminent leakage of fluids in the event of a mechanical failure (can pollute the environment).