In a thrust bearing the external and internal radii of the contact surfaces are 210 mm and 160 mm respectively. The total axial load is 60 kN and coefficient of friction = 0.05. The shaft is rotating at 380 rpm. Intensity of pressure -is not to exceed 350 kN/m2. Calculate: Power lost in over-coming the friction and; Number of collars required for the thrust bearing.

In a thrust bearing the external and internal radii of the contact surfaces are 210 mm and 160 mm respectively. The total axial load is 60 kN and coefficient of friction = 0.05. The shaft is rotating at 380 rpm. Intensity of pressure -is not to exceed 350 kN/m2. Calculate: Power lost in over-coming the friction and; Number of collars required for the thrust bearing.

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 7.70P: Solve Sample Problem 7.16 if the contact pressure under the polisher varies parabolically from p0 at...

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In a thrust bearing the external and the intermal diameters of the contacting surfaces are 320 mm and 200 mm respectively. The totail axial load is 80 kN and the intensity of pressure is 350 kN/m. The shaft rotates at 400 rpm. Taking the coefficient of friction as 0.06, calculate the power lost in overcoming the friction, Also, find the mumber of collars required for the bearing
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