Bearings

Hydraulic Institute Pump FAQs March 2010

Written by Hydraulic Institute

Q. Our pumps take their suction from an open tank. When the liquid level drops, surface vortices are formed that allow air to be drawn into the pumps. What changes can be made to the tank to correct this problem?

Tags: Bearings , Hydraulic Institute Pump FAQs , March 2010 Issue

Written by Craig Cooley and Tim Sexton, US Synthetic Bearings and Ken Bertagnolli, US Synthetic
It has been 54 years since Tracy Hall invented the first manmade diamond at the General Electric (GE) laboratories in Schenectady, New York. Since then, synthetic polycrystalline diamond (PCD) has found wide use as an abrasive and as a cutting element, with an annual market of $4 billion (3 billion carats in 2005). Tags: Bearings , Machinery Health , November 2009 Issue
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Extending the Life of Pump Bearings

Written by Mike Petrashko, NSK Corporation

Pumps and Systems, July 2009

The 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 downtime and avoid costly repairs and lost production.

Tags: Bearings , July 2009 Issue , Maintenance Minders

Written by Bill Strecker, Kingsbury, Inc.

Pumps and Systems, February 2007

When evaluating bearing distress, the babbitted shoe surface is commonly the only area that is examined. Although a great deal of information can be extracted from the babbitt appearance, additional information exists elsewhere.

Tags: Bearings , February 2007 Issue

Rolling Bearings as Crime Scenes

Written by Kenneth R. Foster, SKF

Pumps and Systems, March 2009

How to determine the root cause of bearing failure by analyzing telltale signs.

Tags: Bearings , March 2009

Babbit Bearing Repair for a Power Plant

Written by Pat Trentler and Jim Jenkins, Quadna, Inc.

Babbitt Bearings

Babbitt bearings, frequently found in large steam turbines and generators in major power plants, can provide years of service if properly maintained. By using state-of-the-art technology and repair practices, aftermarket suppliers who specialize in Babbitt bearings can repair equipment and increase the life of Babbitt bearings by:

Tags: Bearings , February 2010 Issue , Power Generation

Written by Glenn H. Phelps, Metallized Carbon Corporation

Pumps and Systems, July 2009

What is the secret to continuously baking or processing cakes, pizza, chicken, beer and thousands of other foods and beverages? Mechanical carbon materials used in the food processing equipment produce these foods safely and cost effectively. Oil/grease free, self-lubricating, mechanical carbon materials are used in conveyors on processing lines, packaging lines and food handling canning machines. Their use solves problems associated with typical oil/grease lubricants, which may contaminate food or cause equipment failure.

Tags: Bearings , Food Processing , July 2009 Issue

Written by Dave Boyer, Rexnord Industires, LLC

Pumps and Systems, February 2007

General Sizing Procedures

Rolling element bearings are mechanically complex compared to plain bearings, but are indispensable in a large variety of functions.

Tags: Bearings , February 2007 Issue

Written by Daniel R. Snyder, SKF USA Inc.

Pumps and Systems, February 2007

Bearings perform vital roles in enabling optimized operation and service life of pumps used throughout industry. In centrifugal pump applications, for example, crucial functions abound.

Tags: Bearings , February 2007 Issue

What Makes Bearings Run Hot?

Written by Dr. Lev Nelik, P.E., APICS

Pumps & Systems, February 2009

In December 2008, we discussed some reasons ball bearings run hot. In December 2006 (ref. [1]), we described the common pitfalls of incorrectly dimensioning shafts during repairs. This time, we will examine the cousin of a ball bearing-a roller bearing-and some of the pitfalls that occasionally cause hot operation.

Tags: Bearings , February 2009 Issue , Pumping Prescriptions

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