johtopyörät
Johtopyörät, which translates to "guide wheels" or "idler pulleys" in English, are components commonly found in mechanical systems, particularly those involving belts or chains. Their primary function is to guide, tension, or redirect the movement of a flexible transmission element. They do not typically provide power themselves but rather assist in the efficient operation of the system.
In belt drive systems, johtopyörät are often used to maintain belt tension. By applying pressure to the
For chain drives, similar principles apply. Johtopyörät can serve as tensioners, preventing excessive slack in the
The design and material of johtopyörät vary depending on the specific application. They can be made from