A cross-sectional view portrays a cut-away portion of the object and is another way to
show hidden components in a device.
Imagine a plane that cuts vertically through the center of the pillow block as shown in
figure 15. Then imagine removing the material from the front of this plane, as shown in
figure 16.
| Figure 15 - Pillow Block |
Figure 16 - Pillow Block |
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This is how the remaining rear section would look. Diagonal lines (cross-hatches) show
regions where materials have been cut by the cutting plane.
| Figure 17 - Section "A-A" |
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This cross-sectional view (section A-A, figure 17), one that is orthogonal to the
viewing direction, shows the relationships of lengths and diameters better. These drawings
are easier to make than isometric drawings. Seasoned engineers can interpret orthogonal
drawings without needing an isometric drawing, but this takes a bit of practice.
The top "outside" view of the bearing is shown in figure 18. It is an
orthogonal (perpendicular) projection. Notice the direction of the arrows for the
"A-A" cutting plane.
| Figure 18 - The top "outside" view of the bearing |
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