El roce de la columna y el casquillo debe seruniforme.En caso de mal pegada, hacer croquis con cotas demaquinas de guiados de columna.El casquillo debe poder moverse con la mano sindificultad.The friction between the guide pilar and thebushing must be uniform.In case of incorrect contact, perform a sketch withmachine dimensions of pillar guiding.The bushing must be able to move with the handwithout difficulty.