By Dez Duran-Lamanilao
Lubricants usually tend to limit the high temperature operation of ball and roller bearings, which are mostly used on centrifugal pumps; larger size pumps require different bearing specifications. Optimizing your bearing lubrication increases the efficiency of your machinery.
A chamber metering valve meters grease onto the break.
Below are the types of bearing lubrication:
- Mineral or synthetic based – designed for general and high-speed use (the most commonly used type)
- Silicon – have wide temperature ranges
- Perfluorinated lubricants (PFPE) – highly resistant to many chemicals
- Dry – used in vacuum environments where standard lubricants may cause contamination
- Dampening greases – widely visible in automotive parts
- Food grade lubricants – required for the food and beverage industry to conform with hygiene regulations
Lubrication performs many functions, which may include:
- Separates rolling and sliding contact surfaces to prevent interlocking or inter joint welding
- Protects highly finished bearing surfaces from corrosion
- Protects against contaminants
- Acts as a heat-transfer medium, thus reducing energy loss
- Reduces surface deformation, wear and tear
- Increases the smooth motion of moving targets
You can further increase bearing life by observing the following:
- Regularly monitor lubricant condition.
- Install dehumidifiers if needed.
- Hermetic sealing of the bearing housings with magnetic shaft seals and closed system oilers to keep out moisture and dirt
- Observe effective storage and proper handling to prevent abrasive dirt from entering the lubricant.
- Use only approved grades of oil or grease.
- Use synthetic lubricants. In applications with either extremely high or low temperatures or very heavy loads, synthetic oils/greases may cause improved thermal stability, improved oxidation resistance, and lower evaporation losses as compared with non-synthetic lubricants.
Studies have demonstrated that almost half of all equipment or component failures in plants are a result of lubrication issues. Installing an ISO-approved lubricant is the best way to start a company’s lubricant management process. Leave the installation to the experts in the field. Their vast experience and knowledge alone will be instrumental in improving the life cycles of your pumps.