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In This Issue
| - Prevent Grease from Escaping
- Is Too Much Filtration a Bad Thing?
- Do Large Particles Cause More Wear?
- Avoiding Grease Cross-contamination
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| Prevent Grease from Escaping |
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| Inclined or vertical shafts can lead to grease escaping from the bearing due to gravity. This eventually will result in lubricant starvation and premature failure of the bearing. Consider using a grease with good adhesive properties of penetration class 2 to 3. In addition, a baffle plate mounted in the housing below the bearing will help to retain the grease where it is needed — in the bearing. (Derek Peasley, FAG Sales Europe)
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Even if you remove all normal wear particles with an external engine oil filtration device, you can still determine or trend the wear in the engine by sampling after the pump and before the filter. By reducing the background level of wear particles (noise), it is comparatively easier to detect the abnormal generation of wear particles assuming, of course, that the sample is drawn after the pump but before the filter.
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FULL STORY
| What's in your oil?
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Test your knowledge and prepare for ICML lubrication and oil analysis certification.
Question: Do large particles always cause more wear than small particles?
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From the book "Lubrication and Maintenance of Industrial Machinery":
Contamination is a particular concern with greases. Unlike lubricating oils where contaminants can be readily removed via filtration, once a grease is contaminated, it is a virtual certainty that these contaminants will be introduced into equipment if the grease is used. This can result in premature equipment failure due to abrasion and fatigue. Similarly, cross-contamination of different greases through using transfer tools or grease guns for two different products should be avoided. Many different grease thickeners are considered to be incompatible and can lead to excessive softening or thickening once the cross-contaminated grease is put into service. Just like lubricating oils, greases should be stored with pertinent information such as date of manufacture, date of receipt, "used-by" date and product data including manufacturer and brand.
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Read more about "Lubrication and Maintenance of Industrial Machinery":
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| Lube Program Lack Direction? Start Here.
Did you know that Noria's lubrication training is far more than just certification preparation? Watch this video by Jim Fitch for a better understanding of what you'll learn in our Fundamentals of Machinery Lubrication training.
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