spur gears are used because there are many things such as bicycles that cant exist without a spur gear'
>
gearboxes, mechanical watches, cam drives
Planetary gears can be spur or helical gears.
Spur Gears.
Sliding Gears in a transmission are straight-tooth spur gears with a taper (also known as a lead) to make engaging easier. Helical gears are mostly used in a transmission because spur gears produce gear noise and have a great strain on the teeth of the gear since only one tooth can be in contact at any given time. But because helical gears cannot be taken out of mesh, spur gears are used for the reverse gear because reverse spins the opposite way and cannot be in constant mesh.
Advantages - Spur gears are simplest, easiest to design and manufacture and disadvanages i dunno :)
bevel gears are used for power transmitting between the shafts which intersect at some angel ( usually right angel) , but the spur gear is used for shafts which are parallel and coplanar.
A gear is a simple machine, usually circular, with evenly cut teeth surrounding its perimeter. Spur gears are the most basic type and can be used in a wide variety of simple and complex machinery.
One of the most common types of gears is the Spur Gear. They are most round with teeth along the edging. Spur Gears are used in oscillating sprinklers or fans, windup clocks, washing machines and dyers.
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.
In the differential.
You can see them in industries...
They don't. Most racing trans have straight cut gears. Spur cuts are a little easier to shift.
Spur gears give 180 degree drive, and worm gears give 90 degree drive.