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In This Issue
| - Detective Work Helps You Find Hidden Oil Leaks
- Assessing the Depletion of Antioxidant Additives
- How to Monitor Grease Degradation
- The Benefits and Drawbacks of ‘Green’ Lubricants
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| Detective Work Helps You Find Hidden Oil Leaks |
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| If a gear reducer is running hot, don't automatically think that it needs a higher viscosity oil. Take a sample of oil for a metals analysis. If the sample shows high wear metals, then the high temperatures could be a result of metal-to-metal contact - in which case, a higher viscosity oil would be warranted. If the wear metals in the sample are low, then the heat could be the result of having too high a viscosity oil, and fluid friction is the source of heat. In this case, a lower viscosity oil may solve the high temperature problem. If these solutions don’t work, check the temperature of the drivetrain (the electric motor, coupling and the reducer). If the electric motor is hotter than the reducer, then maybe the electric motor is undersized and the reducer is acting as a heat sink. In this case, have the electricians install the proper size motor for the load. The oil viscosity may have been correct.
Join Noria's Jim Fitch for Fundamentals of Machinery Lubrication in Dallas, Texas, on January 25-27.
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| Quick Motor Change-outs
UL switch rated plugs and receptacles allow technicians to quickly connect/disconnect motors. Safety features protect from live parts and arc flash injury. NEC/NFPA 70E code compliance is simplified. Also ideal for welder connections.
Click here to request a sample. |
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| Assessing the Depletion of Antioxidant Additives |
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Test your knowledge and prepare for ICML lubrication and oil analysis certification.
Question: Which test can be used to assess the depletion of antioxidant additives?
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GET THE ANSWER
| To evaluate the effectiveness of oil analysis in monitoring the rate of thermal and oxidative degradation of lubricating greases, researchers have devised a series of simple experiments to try to evaluate the effectiveness of some common and not-so-common oil analysis tests in determining grease degradation. |
FULL STORY
From the book "Practical Lubrication for Industrial Facilities – Second Edition” by Heinz P. Bloch:
There is a growing public interest in environmentally friendly, or "green", products – i.e. products that do not harm the environment during their manufacture, use or disposal. Manufacturers and marketers have capitalized on this trend by introducing products that claim to be less harmful on the environment than competing products. However, in the absence of standardized criteria, some companies have made untested and misleading claims regarding the environmental features of their products. … A strong environmental commitment is a basic obligation that any business has to its customers and the community. This interest is not served by companies that make unproved and exaggerated environmental claims for their products or that fail to fully inform their customers of significant tradeoffs associated with environmentally oriented products. Until the establishment of meaningful environmental labeling standards, consumers should take a critical and questioning view of any product that is claimed to be "environmentally friendly".
Read more about "Practical Lubrication for Industrial Facilities – Second Edition"
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