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Gears:They are used in bicycle to gain speed faster and to paddle less it is very useful as it requries very less energy,it is very ueful in moumains as there are very steep slopes and if we put gears it is easier to paddel.
by mukul thakur (SHIMLA,HP)For transmitting rotational torque.
You could use gear for putting a wheel thing.
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Is planetary gears used for spur gear?
Planetary gears can be spur or helical gears.
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Reverse and forward gears
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Six gears, one down five up.
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Gears working together can be a simple machine in themselvesA Gear Train is a complex machine made up of wheel, axles and gears
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Spur gears have straight teeth while helical gears have curved teeth. Generally, helical gears are usually quieter and smoother in operation, while spur gears are easier to make and much less expensive.Helical gears are stronger than spur gears.
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