Fundamentals of Lubricants

1. Chevron Global Lubricants
Lubricant Applications

2. Primary Applications
 Bearings
 Cylinders
 Gears

3. Bearings
 Sliding (Plain)
 Rolling (Anti-Friction)

4. Plain Bearings
 Journal
 Thrust
 Guide

5. Journal Bearing

6. Thrust Bearing

7. Guide Bearing

8. Lubrication of Plain Bearings

9. Rolling Bearings

10. Rolling Bearings
Tapered Roller Bearing

11. Rolling Element Bearing
Lubrication
Bearings are mainly grease lubricated

12. Bearings
Why do 90% of rolling element
bearings FAIL before they
reach the end of their useful
life?

13. Bearings Failures
Reasons:
 70%: a. Improper fitting;
b. Improper lubrication
(over-greasing)
 30%: a. Contamination;
b. High Temperatures;
c. Shock loads;
d. Excessive speeds

14. Cylinders (and their Pistons)

15. Gears
 Rolling and sliding action

16. Lubricant Design
 Sliding versus Rolling Action

17. Secondary Applications
 Wire Ropes
 Chains
 Flexible Couplings

18. Wire Ropes

19. Wire Ropes

20. Wire Ropes

21. Chains

22. Chain Lubrication
Oil Application
Roller
Roller
Link Plate
Bushing
Pin
Pin
Link
Plate
Oil Entry

23. Flexible Couplings
Hub
Lubricant
Casing
Geared Coupling

24. Coupling

25. Types of Flexible Couplings
 Automotive
– Universal Joints
– Constant Velocity Joints
 Industrial
– Geared
– Chain
– Grid or Spring Type

26. Chevron Global Lubricants
Lubricant Applications