All standard parts are applied in 3 levels of detail.

With the level of detail "low" your parts (especially large assemblies) are loaded much quicker. This is convenient during part search, for example, and it saves time. If you want to analyze a part in more detail, switch to "medium" or "high". During export normally "high" (administratively set) is used; independent of the currently displayed level of detail..

Using the detail button you can determine the Level of Detail of the part (assembly).

As soon as you have clicked on this button, the display changes in the 3D window.

Detail function button		High detail Medium detail Low detail
High detail [a]	Medium detail	Low detail
High detail [b]	Medium detail	Low detail
[a] Example images depict ISO 4231 [b] Example images depict deep groove ball bearing DIN 711

Background information about administrative settings and about levels of detail in CAD can be found under ???.