If you are a mechanical engineering student in Bulgaria (TU-Sofia, TU-Varna, or TU-Gabrovo), you know that is where things get serious. While Part I covers the basics of connections and fasteners, Part II dives deep into the "heart" of machinery: transmissions and motion.

Calculation of fatigue strength and rolling-element bearing selection.

Most course materials for the second semester of Machine Elements focus on . Expect to find resources on:

Flexible power transmission.

If you are looking for physical books to supplement your digital .rar files, these are the gold standards in Bulgarian engineering:

Essential for high-reduction ratios.

Ensure your calculations follow the BDS (БДС) or ISO standards mentioned in your specific syllabus.

💡 Pro-Tips for Your Design Project (Курсов Проект)