Rihmülekannete

Rihmülekannete is an Estonian term that translates to "belt transmission" or "belt drive" in English. It refers to a mechanical system used to transfer rotational power from one shaft to another through the use of a belt. This is a common and ancient method of power transmission, with roots dating back to early machinery.

The basic components of a rihmülekannete system include at least two pulleys, typically mounted on separate shafts, and a flexible belt that loops around both pulleys. When one pulley rotates, it drives the belt, which in turn causes the second pulley to rotate. The speed ratio between the pulleys can be altered by changing their relative diameters.

Rihmülekannete systems are employed in a wide variety of applications, from simple hand-cranked devices to complex industrial machinery. Examples include sewing machines, washing machines, older automotive engines (for accessories like alternators and power steering pumps), and industrial conveyor systems. They are valued for their simplicity, relatively low cost, and ability to absorb shock and vibration. However, they can also be prone to slippage, wear, and require periodic tension adjustment. Different types of belts, such as V-belts and flat belts, are used depending on the specific torque and speed requirements of the application.