As shown in the simplified gear shaft assembly in Figure 3.17, the transverse view of a bearing is shown in cross-section with only the outline and none of the internal details such as ball bearings and cages. Even when the transverse view is not a sectional view, it is normal practice to show the bearing as if it was a cross-sectional view. Within the bearing outline (class A line), symbology is used to indicate the exact type of bearing. Symbology shown within the example in Figure 3.17 refers to a thrust bearing. Details of how to draw bearings are covered in ISO 8826-1:1989 and ISO 8826-2:1994.
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