Machinery Lubrication June 2012

Featured Article

Jim Fitch, Noria Corporation

Too often the viscosity index (VI) is disregarded as a lubricant selection parameter. One reason is simply because it is poorly understood. Some people think the viscosity index is incorporated in...

Name: Juan José Gamboa Alvarez Age: 33 Title: Condition Monitoring Specialist Years of Service: 9 years Company: Yanacocha Newmont Mining Corporation Location:...

Wes Cash, Noria Corporation

Oil additives offer a wide range of benefits, but in some circumstances they can actually be harmful to the machines in which they are added. For example, let’s look at worm gearboxes. These...

Suzy Jamieson, ICML

In 1948, Visy Paper was started by the Pratt family in Melbourne, Australia, as a manufacturer of corrugated cardboard boxes. Today, Visy has become one of the world’s leading packaging, paper and...

Jeremy Wright, Noria Corporation

Approximately 95 percent of the current lubricant market share is comprised of conventional (mineral-based) oils. Most people know these mineral oils are derived from a crude stock, but how much do...

Mariaan Avis, Eskom Enterprises

In the field of tribology, the word “particles” means different things to different people. The following case studies illustrate how differently the mechanical engineer, tribologist, sampler,...

Use caution with grease lines that run out of the machine frame and are intended to offer easy lubrication access points. Since these line extensions often carry more than a few shots of grease,...

Brendan Casey

These days, best-practice contamination control is more like an accepted pre-condition for reliability. Given contemporary advances in technology for excluding and removing contaminants, it could...

Robert Errichello Jane Muller, Geartech

With all the different gearbox failure modes, it’s important to be aware of the various tests that can be used to develop and confirm a hypothesis for the probable cause of failure. Lubricant...

Noria Corporation

The International Organization for Standardization (ISO) has developed a cleanliness code that is the primary piece of data reviewed on most industrial oil analysis reports. The value of this code...

Noria Corporation

Lubrication professionals often become very familiar with the base oil viscosity of their lubricants. After all, viscosity is the most important property of a base oil. Baselines for incoming oils...

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