This is a generalized drawing of an Epinomous 608zz Skate Bearing. This diagram can be used alongside tutorials in various CAD systems.
The full PDF can be purchased on TeachersPayTeachers/mathcodeprint
or the direct link to the Product page:
https://www.teacherspayteachers.com/Product/Engineering-Diagram-for-608zz-Bearing-Basic–5719806