When designing belt pulleys, we pay particular attention to the pattern and shape of the teeth themselves. This is a parameter that allows you to minimize unnecessary friction, which, as a consequence, and after many hours of work, can lead to the destruction of elements. Another factor that we pay attention to when producing pulleys is the strength of the materials from which we make the components. It is worth emphasizing that, depending on the material used, the service life of the elements can vary significantly. An example is a wheel made of aluminum, which ensures trouble-free operation for about ten thousand hours at a speed of 1,450 revolutions per minute. After this time, deformations and scratches begin to appear on the surface of the wheel.