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Subject Mechanical Engineering   Given the following operating conditions for a rolling bearing, what lubricant would you select and what is the reason for your choice? Speed of bearing contact is 100 mm/s and bearing pressure is 10,000 KN/m². Substantiate your answer with appropriate figure/chart.

Subject Mechanical Engineering   Given the following operating conditions for a rolling bearing, what lubricant would you select and what is the reason for your choice? Speed of bearing contact is 100 mm/s and bearing pressure is 10,000 KN/m². Substantiate your answer with appropriate figure/chart.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Mechanical Engineering

 

Given the following operating conditions for a rolling bearing, what lubricant would you select and what is the reason for your choice? Speed of bearing contact is 100 mm/s and bearing pressure is 10,000 KN/m².

Substantiate your answer with appropriate figure/chart. 

BEARING PRESSURE, kN/m² 1000 000 100 000 10 000 1000 100 10 10 ITT LIMIT FOR SOLID/DRY LUBRICANTS LIMIT FOR GREASE 100 100 DRY LUBRICANTS LIMIT FOR GREASED 1000 SPEED, ft/min 1000 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ PLAIN BEARINGS THE LIMITS SHOWN ARE BROAD ENVELOPES AND ARE RATHER ARBITRARY. THEY WILL BE INFLUENCED BY THE TEMPERATURE, REQUIRED LIFE AND NATURE OF THE BEARING LIMIT FOR FOR LIQUID LUBRICANTS THE FUNDAMENTAL PROPERTY IS VISCOSITY, AND THIS FIGURE ASSUMES THAT THE CORRECT VISCOSITY HAS BEEN CHOSEN ROLLING -BEARINGS- 10 000 GREASED T 10 000 SPEED AT BEARING CONTACT, mm/s 100 000 LIMIT FOR OIL LUBRICATION 100 000 ▬▬▬▬▬▬▬▬ 1000 000 10 000 1000 100 1000000 BEARING PRESSURE, p.s.i.
Transcribed Image Text:BEARING PRESSURE, kN/m² 1000 000 100 000 10 000 1000 100 10 10 ITT LIMIT FOR SOLID/DRY LUBRICANTS LIMIT FOR GREASE 100 100 DRY LUBRICANTS LIMIT FOR GREASED 1000 SPEED, ft/min 1000 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ PLAIN BEARINGS THE LIMITS SHOWN ARE BROAD ENVELOPES AND ARE RATHER ARBITRARY. THEY WILL BE INFLUENCED BY THE TEMPERATURE, REQUIRED LIFE AND NATURE OF THE BEARING LIMIT FOR FOR LIQUID LUBRICANTS THE FUNDAMENTAL PROPERTY IS VISCOSITY, AND THIS FIGURE ASSUMES THAT THE CORRECT VISCOSITY HAS BEEN CHOSEN ROLLING -BEARINGS- 10 000 GREASED T 10 000 SPEED AT BEARING CONTACT, mm/s 100 000 LIMIT FOR OIL LUBRICATION 100 000 ▬▬▬▬▬▬▬▬ 1000 000 10 000 1000 100 1000000 BEARING PRESSURE, p.s.i.
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