Where can I find 3d models of commercial products faithful to real ones (such as electric motors, switches, pneumatic pistons, pneumatic valves, etc.)

Where can I find 3d models of commercial products faithful to real ones (such as electric motors, switches, pneumatic pistons, pneumatic valves, etc.).
What should I do if a specific product is needed during the design and it is not available in a 3d model (for example, if I need an electric motor from a specific company, with a specific shape and size, what should I do?)?
I leave some examples of the products to which I refer in the attached photos below.

Thanks

2 Answers

you can try https://www.traceparts.com/en or https://www.mcmaster.com/ for the bigger things. Little electric parts may be found at https://componentsearchengine.com/.
Otherwise reach out to the vendor, they may have a model they are willing to release

Busca los componentes por su número de parte que requieres dibujar en 3D para que encuentres las medidas del mismo y lo diseñes tu mismo. Ahora bien si necesitas ayuda yo te la puedo proporcionar diseñándolos por ti pero con un costo.

Saludos cordiales.