2. A flat belt runs over two pulleys of diameter 800 mm and 1,400 mm with center distance 24 m. A power of 90 kW is transmitted from 800 mm pulley. Assuming slip as 2 per cent and design stress for belt material 2.8 MPa, calculate the size of flat belt. Assume belt velocity 20 m/s, coefficient of friction 0.3. and safe stress 2.1 MPa. [t = 15 mm: h 250 3. Select a

2. A flat belt runs over two pulleys of diameter 800 mm and 1,400 mm with center distance 24 m. A power of 90 kW is transmitted from 800 mm pulley. Assuming slip as 2 per cent and design stress for belt material 2.8 MPa, calculate the size of flat belt. Assume belt velocity 20 m/s, coefficient of friction 0.3. and safe stress 2.1 MPa. [t = 15 mm: h 250 3. Select a

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Q2 / A belt drive consist of two V-belts in parallei, on grooved pulleys of the same size. The angle of the groove is 30". The cross - section area of each belt is 750 mm? and u is 0.12. The density of the belt material is 1.2 Mg/m' and the maximum safe stress in the material is 7 MN/m. Answer the following questions 1- The centrifugal tension in belts is . . (a) increases power transmitted (b) decreases power transmitted (e) have no effect on power transmitted (d) increases power transmitted up to a certain speed and then decreases
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