Roller Wheel Sizes
Name: Brandon L.
Why does the size of a ball or wheel have to do with its
speed? For example on rollerblades sometimes the wheels are small and
others are big. My friend said it is because the size of the wheel can
make it go faster or slower...is that true?
Wheel size can affect speed in several ways. A large wheel may have more
mass. More mass requires a stronger push to speed up as much as a smaller
mass. On the other hand, a larger wheel doesn't have to spin as fast as a
smaller wheel. If lubrication of the axle is poor, a board with larger
wheel can travel faster. Wheel size can have a variety of effects on speed,
but there is no definite link. One cannot always say large or small is
better. It depends on the characteristics of the individual vehicle.
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Update: June 2012