Consider a spur gear having a circular pitch of 4 mm and a pitch circle diameter of 28 mm. What would be the total number of teeth the gear has? (Take π = 227)

The circle passing through the bottom of the teeth of a gear is known as the:

Which type of gear is called a Double Helical Gear, with teeth arranged in a V-shape along the axis?

In a rack and pinion gear mechanism, the rack typically refers to which of the following component structures?