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In This Issue
| - Extending Chain and Sprocket Life
- Inspect Bearing Grease Discharge
- How Wear Particles Affect Oxidation
- The Importance of Bleeding Rate in Grease
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| Extending Chain and Sprocket Life |
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If you are having trouble with short chain and sprocket life, build the chain guard to hold oil and line the bottom of the guard with a wear-resistant material such as UHMW. UHMW is a lubricant-impregnated Teflon wear strip. The chain will drag on the wear strip, and the life of the chain will increase remarkably, especially if it is running in a dirty environment. (Craig Palculict, Georgia-Pacific)
Join us in New Orleans, La., on Nov. 5-7 for
Machinery Lubrication training.
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| Too often the opportunity to inspect grease discharge is dismissed largely due to ignorance. In fact, there is a story to tell from the condition and state of grease discharge. This relates both to the state of lubrication and the health of the machine. There is also information to be learned about the application of the grease, the relube frequency and the relube volume that can be assessed by inspecting grease discharge. |
FULL STORY
Question: How is oxidation affected by wear metal particles?
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From "Grease Lubrication in Rolling Bearings":
The bleeding rate, which is the bleeding per unit of time, should ideally somehow match the starvation rate. In the beginning of bearing operation, the lubricant film will be relatively thick and no additional feed of base oil is required. A too high bleeding rate will exhaust the grease at an early stage, leading to short grease life. If the bleeding rate is too low, the contacts will starve rapidly, leading to early damage. |
Read more about "Grease Lubrication in Rolling Bearings"
Poll Question: Have any injuries occurred at your plant as the result of using a high-pressure grease gun?
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