Standard Mechanical Parts Standard Mechanical Components gear Mechanical mechanism Transmission devices Types of Machine Elements

 Standard Mechanical Components

https://www.directindustry.com/cat/standard-mechanical-components-B.html 

https://lo.unisa.edu.au/mod/book/tool/print/index.php?id=424247

https://learnmech.com/mechanical-components/

https://en.wikipedia.org/wiki/Category:Mechanical_standards

https://www.thomasnet.com/articles/machinery-tools-supplies/understanding-gears/

https://www.iqsdirectory.com/articles/manufacturing/mechanical-components.html