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Real World Applications:Gears are used constantly in everyday applications such as toys, clocks, mixers, bikes, oil rigsetc. Highly used in cars, gears are connected to the crankshaft, which turns the axel to the move the car. The first gear allows the crankshaft to move faster than the wheels, allowing more power for starting and going up hills while the fourth gear causes the wheels to travel with less power and is used to drive on the highway.
Pre-Lab Questions: 1.What are the five categories of gears? 2.Which categories are used with parallel shafts and which are used with angle shafts? a.Angle: Cross Axis Helical, Worm, Bevel, Hypoid, Face b.Parallel: Spur, Helical, Internal, Rack3.Mating gears must have the same pitchand pressure angle. 4.Pitch Circle Diametera.Imaginary circular line passing through centers of all studs on a wheel 5.Diametrical Pitcha.Number of teeth per unit length of the pitch circle diameter in inches 6.Number of Teeth a.Total number of teeth on gear7.Central Distancea.Center shaft of one gear to the center shaft of the other8.Pressure Angle a.Angle between the normal to the tooth profile at the pitch circle and the tangent to the pitch circle at that pointData/Exercises: Exercise 1A. Gear Identification