Journal of a pump is of 100 mm diameter with a load of 20 kN rotating at 1,000 rpm. Design its bearing with length to diameter ration 1.5 and radius to radial clearance 1,000. Oil outlet temperature of SAE 10 oil is 65°C (m = 0.0125 Pa.s). Find: (a) Bearing modulus (b) Friction coefficient (c) Is natural cooling permissible?

Journal of a pump is of 100 mm diameter with a load of 20 kN rotating at 1,000 rpm. Design its bearing with length to diameter ration 1.5 and radius to radial clearance 1,000. Oil outlet temperature of SAE 10 oil is 65°C (m = 0.0125 Pa.s). Find: (a) Bearing modulus (b) Friction coefficient (c) Is natural cooling permissible?

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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(Q)A pump running at 1,440 rpm has to support a load of 10 kN. Journal diameter is 130 mm. Design a suitable Finite hydrodynamic journal bearing (L/D=1) with radial clearance of 0.065mm. The inlet oil film temperature is 450C. Calculate the bearing characteristics and the required heat dissipation. *
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