Marcas de Precisão do Projeto Interno Ideal

Precision (also known as repeatability), is the ability of a gage or gaging system to produce the same reading every time the same dimension is measured. A gage can be extremely precise and still highly inaccurate. Picture a bowler who rolls nothing but 7-10 splits time after time. That is precision without accuracy. A bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction.