It is required to synthesize the bearing of the pivot shaft between the hood and the mast of the Jib crane in Example 8.2. Find the type and dimensions of the bearing. Assume that the maximum rotational speed of the boom is about 0.1 [rps].
A Jib crane like the one in Figure 8.17 is to be designed for a maximum load of 10 [kN] or 2.2 [klb]. The crane reach or active boom length is 3.3 [m] or 130 [in]. The height of the boom is to be about 3.3 [m] or 130 [in] above ground. It is required to investigate the possible use of I-beam or wide I-beam and round tubes like those in Figure 8.17. The I-beam, tubes, and plates are made of common structural steel ISO E235 or ASTM A36.
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