around 3000 B.C
A short wheel base frame is 102" and some change from axle to axle. Long wheel base is 112" and some change.
wheel and axle and screw
grindstone
There is a plastic hubcap that needs removal first. Then an external snap ring needs removal. If you are luck, it will not be rusted to the axle and will slide off. There is a 2 inch long key that will either be in the wheel or the axle. Keep and eye out for it since it locks the wheel and axle together so that the machine will drive. Generally, you put the wheel on, line up the slot in the wheel to the one in the axle and put the key in.
An artillery wheel is a heavily-built dished wheel with a long axle box, used on gun carriages, usually with 14 spokes and 7 felloes.
since the first people inhabited the earth. they say cave people invented fire and th wheel.
If you do not change a bad wheel bearing the bearing will cut a groov in the axle.If it goes on long enough the axle will have to be replaced.It could also ruin the axle housing.Then you would have to replace the rearend.
the wnba started in 1997 so its been around for fourteen years
To find the Mechanical Advantage you would have to divide.The equation for Lever is: MA = Length of effort arm--------------------------------Length of resistance armThe equation for Wheel and axle is: MA = Diameter of wheel-------------------------Diameter of axleORMA = Diameter of axle-----------------------Diameter of wheel* Depending on where the force is applied.A wheel is just like a bunch of levers arranged in a circle with the fulcrum at the center of the wheel. The axle is like the short end of the lever.One degree of rotation of the axle results in one degree of rotation of the wheel; this is just like rotating the short end of the lever to movethe long end.
they are round. They have LONG history. They are used every single day. On your car, bike, anything pretty much.
The wheel has been around for so long, and probably was invented independently in different places, so the question can't be answered.
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