everything that rotates
                        needs to be balanced


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Vibration Information for rotating machinery applications.


Oil Analysis

Thursday, September 01, 2011

Oil and other lubricants are essential components in rotating machinery. They can serve many purposes including: Read More

Machine Orientation

Sunday, August 21, 2011

Vibration in machines is affected by their orientation and the way they are suspended. A vertical pump will vibrate differently than a horizontal pump. The horizontal pump’s movement may be restricted in the vertical direction as compared to horizontal. Vibration levels in horizontal and vertical directions are not expected to be equal. If we measure and plot the displacements taken in horizontal and vertical directions, we find that the orbit plot is not round, egg shape. We call it an anisotropic system. Read More

Journal Bearings: Oil Whirl and Oil Whip

Monday, August 15, 2011

Journal bearings are a very simple form of bearings because they contain no rolling elements. The journal is the portion of the shaft that slides over the bearing surface. The advantage with journal bearings is that they are inexpensive, simple and have a high load bearing capacity. If maintained properly, these types of bearings can have a very long service life. Read More

Vibration in Electric Motors

Saturday, August 06, 2011

Electric motors are one of the most commonly used pieces of equipment in industry; they drive everything, ranging from pumps, and fans, to conveyor belts and compressors. The motors come in various shapes and sizes, but their underlying design is similar. A basic electric motor has a magnetized stator that surrounds a rotor; the magnetic interaction between the two causes the rotor to spin. Read More

Rigid Body Modes

Saturday, July 16, 2011

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