Figure 4.4A shows the conjugate line and pressure angle. While gears are standard elements that can be purchased off the shelf (they can also be inserted from the SolidWorks Toolbox into a part or assembly file), it is important to learn how to create a gear feature in a CAD/CAM system.Ī gear tooth is the intricate part of a gear. In this section, we cover spur gears from a CAD point of view (i.e., how we construct a gear once it is designed). Typical mechanical design courses in colleges cover the principles and design of gears. A spur gear is the simplest type of gear and the type we cover here. There are various types of gears: spur, helical, bevel, spiral, worm, planetary, and rack and pinion, to name a few.
A wide range of products and applications use gears. Gears are an important and essential mechanical element in mechanical design.