The wheel nut required in this context must have specific features to enable it adapt to its use of fastening a heavy wheel to a spindle. The single nut must bear the weight of the wheel as it hangs on the spindle and further support the weight of the wheel while in motion during rotation…
The two features demand that the nut have particular strength features and endurance to prevent unprecedented detachment. Additionally, the nut must have a secure locking and unlocking mechanism to enable the replacement of the wheel in case of damage. The design of the nut consequently influences the design of the wheel to ensure compatibility thus efficiency. The design of the two relies on the features of the spindle such as its load capacity and the velocity of rotations (Hyldgaard, Delahousse & Meganck, 2009). Given the requirement of the nut, the best design of the nut capable of ensuring the load capacity and the rotation of the wheel would be a lug nut. To increase its efficiency and inconsideration of the features of the wheel, instead of a nut the design changes to that of a lug bolt. Lug nuts just as the rest of the bolted nuts have increased endurance since they attach themselves on the threads of the wheel from inside. This makes it more difficult for the nuts to loosen because of the fretting induced precession as the spindle spins (Willard, 1997). In this context, the wheel will carry a load of a particular capacity; the endurance of the lug nut must therefore bear the weight by spreading it equally across the four nuts used in fastening the wheel to the spindle. Lug bolt have the structure of a screw, the design will thus include three parts for the lug nut including the head, the body and the threads. The head of the lug bolt will consist of a hexagonal head drive of three centimeters. The hexagonal head drive is specifically designed to enable ease of locking and unlocking. The three inches head permit ease of handling as it permits adequate space for the spanner to grip the hexagonal head thus facilitating the rotation during either locking or unlocking. The body is a cylindrical part of about two inches; the part has no threads and runs deep through the holes in the rim thus permitting the threads to hold the trends in the axels. The head and the body constitute a part of the lug bolt known as the grip length. The treads on which the bolt fastens itself is found on the axel, the bolt thus passes through the rim of the wheel (Bickford, 1998). To hold the rim and to prevent the rim from grinding on the head of the bolt, the bolt has a washer, a small hollow plate fastened on the bolt between the head and the surface of the rim to absorb the friction resulting from the contact of the two metal. The design is deliberate and drills the threads on the surface of the spindle a feature that joins the wheel tightly to the axel, as they become part of the spindle. The design help reduce the nuts from loosening as discussed above thus minimizing the chances of the wheel falling off during rotation. Additionally, the design also minimizes friction between the wheel and the spindle as it minimizes the contact between wheel and the spindle by resulting in a unified piece with the wheel relying on the force of the spindle while resting on the body [art of the bolt cushioned from the surface of the bolt with the washer. The diagram above presents the design of the bolt and the washer; the two inches thread is capable of sustaining the wheel and the resultant force of the spindle in motion. The design spread the momentum equally across the wheel by fastening four lug bolts on the wheel. This way, the wheel rests firmly on the spindle and withstands the weight of the load (Sakai, 2008). Part 2 The parts of the lag bolt design are as described in the illustration above, each apart of the bolt performs specific roles in securing the wheel on the spindle. The effectiveness of the lug bolt w ...
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