Introduzione
Un modello 3D interattivo di un cuscinetto sferico liscio.
Risorse Aggiuntive
https://en.wikipedia.org/wiki/Spherical_bearing
http://www.rbcbearings.com/literature/pdfs/RBC-cat-spb.pdf
https://www.ntn-snr.com/sites/default/files/2017-03/en_spherical_plain_bearings.pdf