The figure shows an endless-belt conveyor drive roll. The roll has a diameter 120 mm and is

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The figure shows an endless-belt conveyor drive roll. The roll has a diameter 120 mm and is driven at 10 rev/min by a geared-motor source rated at 1.5 kW. Determine a suitable shaft diameter dC for an allowable torsional stress of 80 MPa.

(a) What would be the stress in the shaft you have sized if the motor starting torque is twice the running torque?

(b) Is bending stress likely to be a problem? What is the effect of different roll lengths B onbending?

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Shigleys Mechanical Engineering Design

ISBN: 978-1121345317

9th edition

Authors: Richard G. Budynas, J. Keith Nisbett

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Question Posted: May 30, 2013 07:08 AM

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The figure shows an endless-belt conveyor drive roll. The roll has a diameter 120 mm and is

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dA dB

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H T955 955 T 16T d a T 1500 10 n s...View the full answer

Shigleys Mechanical Engineering Design

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