Ifu

FIGURE 21 Tubular intermediate shafting and universal units (H. S. Watson)

FIGURE 23 Vertical pump with flexible shafting (Flowserve Corporation)

where w = weight (force) of shaft per unit length, lb/in (N/m) L = length between bearing supports, in (m) E = Young's modulus, lb/in2 (N/m2) I = moment of inertia, in4 (m4)

Knowing the natural deflection of the shaft, it is possible to calculate the first critical speed from the equation:

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Survival Treasure

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