Electric motor bearing lubrication by aung

Lubrication of electric motor bearing

1. ELECTRIC MOTOR BEARING LUBRICATION BY: AUNG KHAING HTUN LUBE ENGINEER

2. AIM To understand how the proper lubrication of electric motor bearing is essential. To know how to choose right electric motor grease To know the correct procedure greasing the motor bearing

3. Guide to electric motor bearing lubrication Grease Lubrication Choosing right electric motor grease Adding grease to electric motor bearings

4. Grease Lubrication reduce friction and wear protect bearings against corrosion a ct as a seal to prevent entry of contaminants POLYUREA M o bil Polyrex EM M o bilith SHC 100

5. Choosing right electric motor grease Viscosity Consistency Oxidation resistance Anti-wear Dropping point Shear stability

6. Adding grease to electric motor bearings Right time Right amount Right way

7. Speed Temperature For each 10°C above 65°C Interval Should be Reduced by Half Size Motor Size Grease Interval Up to 75 HP Yearly 75 to 250 HP 6 Months Above 250 HP 2 Months Right time

8. Right time

9. Right Amount Only the grease in the bearing should be replaced: G = .114 x D x B G = Grease ounces D = OD inches B = Width inches Translate to gun strokes by calibrating gun for strokes/ounce

10. Right Amount - Grease Gun Calibration Check -

11. Right Amount

12. Right Amount

13. Right Way Remove drain plug, clean old grease from drain opening Clean pressure fitting, grease gun nozzle Pump specified amount of grease into fitting Run machine until rotating parts expel excess, temperature normalizes (± 10 minutes) Replace drain plug

14. Right Way Industrial Best Practice

15. Right Way Industrial Best Practice

16. TIPs

17. THANKS FOR YOUR ATTENTION