![]() Assume coarse threads from the below tables.Ģ. Find the nominal diameter of the bolt, if the tensile stress is not to exceed 100 MPa. An eye bolt is to be used for lifting a load of 30 kN. ![]() The following image shows all the calculated standard design parameters for the eye bolt. Now we have d = 33, From this, we can calculate the remaining parameters of the Eye Bolt. The respective nominal diameter for this core diameter d is 33 and the bolt size is M33 bolt. now we can get the nominal diameter of the bolt from the standard design screw threads table below.įor the value of 27.6mm, the next closest d c value from the table is 28.706. Where d c is the core diameter of the bolt size. Permissible Tensile stress σ t = 100 N/mm 2 Assume coarse threads.Ī static Lifting Load P = 60kN = 60×10 3N Example Problem on for finding Eye Bolt size and Eye Bolt design parametersĪn eye bolt is to be used for lifting a load of 60 kN. Now let us take an example of how we can solve an example problem on the eye bolt diameter calculation and the other parameters of the eye bolt. also, we need to have the permissible tensile stress of the eye bolt material. ![]() All of these dimensions are depended on the Nominal diameter of the bolt, which can be identified from the Standard Design dimensions of the screw threads chart mentioned below.įollowing is the schematic diagram for the eye bolt design dimensions.įrom the above dimensions, we can design an Eye Bolt based on the given load need to be lifted. With the many experiments and testing done by engineers, Engineers have standardized the dimensional relation for the eye bolt design. What are the design parameters for the Eye Bolt? From the above relation, if we have the amount of load and permissible tensile stress of the material of the Eye bolt, the core diameter ( d c) of the Eye Bolt can be determined. ![]()
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