A lathe receives power from an overhung shaft situated exactly

above the lathe pulley by meance of the belt drive. A pulley

weighing 400 N and of diameter 270 mm is fixed on the shaft

at a distance of 300 mm to the right of the left hand bearing.

The centre to centre distance between the two shaft supporting

bearing is 900 mm. The maximum power required by machine

is 5 kW at 200 rpm. The belt tension ratio is 2.5. Determine

the diameter of shaft.

Allowable shear stress for shaft material is 40 N/mm2.

asked by guest
on Nov 23, 2024 at 6:58 pm



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