everything that rotates
                        needs to be balanced


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Vibration Information for rotating machinery applications.


Vibration Caused by Misalignment

Saturday, January 07, 2012

Misalignment can occur when the centerline of coupled shafts are not coincident. Misaligned shafts cause overloading and vibration in a system; this condition can be diagnosed by examining spectral data and looking for specific patterns. Two types of misalignment conditions are possible: Read More

Condition Monitoring: Setting Baseline for Vibration Alarm Limits

Monday, January 02, 2012

Condition monitoring can be described as a process of monitoring machine condition, for example: vibration levels. Condition monitoring is a major part of predictive maintenance and is used to detect early vibration problems so that parts can be ordered and maintenance can be scheduled. Why do we need to perform condition monitoring? When a machine fails, production is stopped. Downtime can be very expensive and secondary damage can occur. Instead of simply replacing a bearing, the entire rotor may need to be replaced. The repair costs can increase. In addition, it takes longer to repair, resulting in longer downtime and higher labor costs. Read More

Why Do Machines Fail?

Wednesday, December 28, 2011

The source of machine failure can begin from drawing board to poor maintenance practices and machine operating conditions. Every step of how the machine is fabricated, assembled, installed, and overhauled contributes to the life of the machine. Read More

Structural Vibration

Friday, December 23, 2011

Structures are often exposed to high-energy vibration sources that can have disastrous consequences. Many industries are emphasizing lighter structures that use less material and cost less too, however this has a downside; lightweight structures have inherently lower damping characteristics and resonances can cause extremely high amplitude vibration. Well thought out structural designs can help prevent resonance and excitation of the structure, thereby minimizing the chances of failure. Read More

Types of Gears

Monday, December 19, 2011

Gears come in different shapes, sizes and types depending on their intended use. Some of the common type of gears include: Read More