An open flat belt is required to transmit 50 kW from a pulley of 1.5 m effective diameter running at 300 r.p.m. The angle of contact is spread over 11/24 of the circumference. The coefficient of friction between the belt and pulley surface is 0.3. Determine, taking centrifugal tension into account, width of the belt required in mm. It is given that the belt thickness is 9.5 mm, density of its material is 1100 kg/m3 and the related permissible working stress is 2.5 MPa.

An open flat belt is required to transmit 50 kW from a pulley of 1.5 m effective diameter running at 300 r.p.m. The angle of contact is spread over 11/24 of the circumference. The coefficient of friction between the belt and pulley surface is 0.3. Determine, taking centrifugal tension into account, width of the belt required in mm. It is given that the belt thickness is 9.5 mm, density of its material is 1100 kg/m3 and the related permissible working stress is 2.5 MPa.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.72P

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