عجلات الانزلاق البسيطة والمركبة .. الآلات التي نستخدمها كل يوم وكيف تؤدي عملها

Simple and compound sliding wheels.. The machines we use every day and how they work

There is no doubt that the sliding clog that you used in the beginning was of the type called beginner's clog. This type has simple wheels that do not rotate very quickly, and do not slide for long distances. If you practice riding many times, and fall on the ground once or twice, you can use wheels with metal balls. These rotate quickly and slide easily for long distances. So what facilitates the process of rotation and sliding, so that these wheels with balls perform their work in a better and better way?

You can reach the answer yourself, if you try to push a heavy book on the floor of your room and you see that the book is not far from you, because it rubs against the ground, which hinders its speed of movement.

Now put some wear under the book, then push it, you will find that pushing the book, a light push, will cause it to slide quickly forward, because the metal balls or (wear) when it rolls, prevent the book from rubbing against the floor of the room. The wheels in the sliding clog mounted on metal wheels are small steel balls that rotate inside the wheel, preventing friction with its axis.

The many fulcrum points help speed up the sliding

You don't find these steel balls in the beginner's clog, which is why they are slow. This design is a great idea for beginners who lean on barriers and cling to them for fear of falling.