Ever wonder why trains have steel wheels, rather than tires like a car? It's to reduce rolling friction. When your car is driving on the freeway, about 4-7 percent of its potential energy is lost to the rolling resistance of the tires. Tires bend and deform a lot as they roll, whic...
For example, the quality of the air in the tunnel is changeable and has a tremendous bearing on test results. In addition to carefully gauging the shape and speed of the object (or the wind blowing past the object) testers must consider the viscosity (or tackiness) and compressibility (...
For fleets that run their medium-duties until the “wheels fall off,” resale may not be the highest priority at the time of vehicle purchase. But, for those that intend to replace their trucks every five to seven years or sooner, how a truck is spec’ed has a direct bearing on its ...
Check your board wheels and bearings to see if they are already in need of some cleaning. Dirt may start to pile up in your bearings if you are not able to clean them on a regular basis. This may be the reason why your wheels spin a little slower than before. Clean your board wheel...
So, in a conventional manual transmission, there is not a continuous flow of power from the engine to the wheels. Instead, power delivery changes from on to off to on during gearshift, causing a phenomenon known as "shift shock" or "torque interrupt." For an unskilled driver, this can ...
One pretty obvious dilemma of driving down the highway in a craft that needs to take to the air is, "What do you do with the wings?" If you're the maker of the Terrafugia Transition, the answer is, "You fold them." The Transition, a four-wheel, canard-bearing vehicle, features wi...
Much of RC control, especially with RC helicopters is done with small quick stick movements moving the servo back and forth in very small increments. There are also many changing loads on the rotor system (both main and tail) that are always trying to force the servo off its hold position...
Put the bearing and bearing shield in their proper place.Carefully put the shields into their original place. Put the bearings back and ensure there is no gap. Put the bearings back into the wheels; use your finger to push each bearing onto the wheels. Then, push the wheel onto the board...
Rollerblade wheels take some upkeep to ensure that they continue to perform at a high level. To keep your wheels like new, it is recommended to clean and lubricate your wheels and bearings to ensure that your Rollerblades continue to roll like the day that you bought them. Rollerblade recommen...
Unscrew the axle nuts andtake off your wheels; Keep the nuts and the speed washers together so you don't lose them; Take the bearings out of the wheels; Remove the bearing shields using the razor blade or safety pin; Make sure to keep the shields together so you don't lose them; ...