Outside lubrication experts help improve protocols and minimize downtime.
A Russian oil & gas company produces a compressor station to maximize pipeline capacity.
Pumps & Systems, November 2007The benefits of predictive maintenance are becoming readily accepted throughout industry in Europe as well as North America. Guy Mertens, who is responsible for...
Advanced Bearing Materials for Processed Lubricated Systems
Pump manufacturers in a variety of industries are increasingly asked to deliver more with less; they need to handle increased loads with improved system efficiency but reduce envelope, environmental...
Pumps & Systems, February 2009In this age of environmental consciousness, OEMs around the world are competing to build better, safer and greener machines. In striving toward such lofty goals, many...
Back to Basics: Pump Bearing Housing Lubrication-Part 2
The conclusion of a two-part primer on optimal ways of lubricating the bearings in process pumps. The first part of this two-part article focused on lubrication fundamentals, pump housing...
Bearing Failure and Analysis
Rolling bearings are precision machine elements found in a wide variety of applications. They are typically reliable even under the toughest conditions. Under normal operating conditions, bearings...
Q. What information is available regarding bearing minimum loads for pumps? A. All rolling element bearings require a minimum applied load. This ensures that normal elasto-hydrodynamic operation...
Appropriate equipment selection and best-practice maintenance procedures can make a difference in reliability, service life and production.
Bearings: Theory, Reality, and Russian Sputniks
Our repair shop manager, Jerry, recently got a call from a plant to help solve a continual vibration problem with their end-suction process pump. Jim, the plant maintenance manager, was unhappy when...
Benefits from Proper Lubricant Monitoring and Analysis
Lubricants for rotating machinery primarily serve to separate rolling and sliding contact surfaces, protect highly finished bearing surfaces from corrosion, protect against contaminants (in the case...
Safely immerse motor compressors in process gas without risking costly damage.
This material stands up to pump upsets such as cavitation and dry running.
The material stands up to pump upsets such as cavitation and dry running.
Regular care and inspections help prevent costly downtime.Clarifiers are expensive, to buy or repair, and their downtime can be costly in fines imposed by regulatory agencies and in community ill...
Careful analysis identified the issue with this multistage, oil transfer pump.
A thermoplastic composition in abrasive applications helped bearings meet end user specifications.
This equipment eliminated a SAG copper mill gearbox’s maintenance issues resulting from contact lip seals that had a short and unreliable service life.
An argument in favor of IEEE-841's provision for motor bearing protection.In June, 2007, a reader asked Electrical Apparatus magazine, "How long should motor bearings last?" The answer will astound...
Pumps and Systems, July 2009The initial cost of a pump is a small component of the pump's total life cycle cost. Progressive, proactive maintenance practices are vital to maximize pump life, minimize...
Pumps & Systems, August 2008Progressive maintenance practices are vital to maximize pump life, minimize downtime and avoid costly repairs and lost production. It is good practice to plan the...
Use a mathematical model that estimates vibration at the top bearing of a motor used on a vertical, wet-pit, column type pump.
Graphite and Nanocrystalline Diamond Surfaced Bearings
Low friction surface technology aids magnetic and hydrodynamic bearing reliability and failure resistance.Magnetic bearings have the advantage of non-contacting, super-low friction performance. With...
Greene, Tweed Provides Longer Life Bearings to a Major Nuclear Power Plant
Pumps and Systems Success Story of the Year 2010 WinnerWhen a component of a large circulating water pump fails in a power plant, the power plant must often spend hundreds of thousands of dollars...
Discharges flowing through the bearings put motors at risk.
Guide Bearings Misdiagnosis
Guide bearings are often blamed for unrelated pump problems.Frequently, guide bearings are incorrectly blamed for a problem that has nothing to do with the bearings. Unless the bearings have a...
How Hot Should Anti-Friction Bearings Be Allowed to Run?
Pumps & Systems, December 2008Given time, every component of the rotating machinery will eventually fail, even when operating in a perfect environment. For instance, rotation of the shaft subjects...
To optimize the lubrication of a bearing, proper oil viscosity selection is essential.
The best option for preventing bearing currents depends on the source of the problem.
Pumps and Systems, February 2007Bearings perform vital roles in enabling optimized operation and service life of pumps used throughout industry. In centrifugal pump applications, for example, crucial...