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50 kN capacity screw jack consists of a square-threaded steel screw meshing with bronze nut. The nominal diameter is 60 mm and the pitch is

  • 50 kN capacity screw jack consists of a square-threaded steel screw meshing with bronze nut. The nominal diameter is 60 mm and the pitch is 9 mm. The permissible bearing pressure at the threads is 10 N/mm2. Calculate: (i) the length of the nut; and (ii) the transverse shear stress in the nut.

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