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Education
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4. This arrangement is called a Spur Gear System. In this
arrangement, the gears fit together, or mesh, along the same line
or in the same plane. In the Crank Fan, the gears are arranged
one above the other. Turn your model on its side so you can see
how the gears are in line with each other.
5. The names of the various parts of this
model are: Crank, driver gear, driven gear,
and fan blades. Using masking tape, label
the different parts of your model.
6. Using your notebook, respond to the following:
(a) Describe how the moving parts that you labeled above are connected to each
other.
(b) Describe the input motion (the motion you use when you operate the crank).
(c) Describe the motion of the gears.
(d) Draw a diagram of the gear arrangement in your notebook and use arrows to
show the direction each part moves as you operate the fan.
driver gear
fan blades
crank
driven gear
