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FURTHER WHEEL FITTINGS

V. Ryan 2009

 

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Lock nuts are very useful and are used by engineers and mechanics. The diagram below shows a wheel pushed onto a threaded shaft. Washers are placed on either side of the wheel and a lock nut is finally threaded in position. This is a highly effective method of securing a wheels on shafts / axles.
A close look at the lock nut shows that it has a nylon sleeve. As the nut is tightened, the thread on the shaft / axle cuts into the nylon, holding it firmly in position.
As the wheel rotates a normal nut will loosen because of friction and vibration of the wheel. However, the nylon holds the nut firmly in position.
 
   
 
   
An alternative is to use two normal nuts. The second locks the first in position.
 
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