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Balancing Unbalance is a very common source of high vibration that is identified by excessive levels of vibration amplitudes at a frequency that is synchronous with machine speed. Possib
Field Application Note: Reverse Dial Alignment
Courtesy of STI Vibration Monitoring Inc. Misalignment can be the most usual cause for unacceptable operation and high vibration levels. New facilities or new equipm
SKF Bearing Greases and their Applications
Courtesy of SKF Maintenance Products      LGMT 2 SKF general purpose industrial and automotive bearing grease
Acceleration Enveloping
Application Enveloping Acceleration envelope measurements are a new introduction to the inventory available to vibration analysts. Although initially it would seem to be most useful for detecting
Bearing Failure Modes
Bearing Failure Modes This application note presents specific failure modes associated with machinery having journal bearings. Signal measurements presented here are time waveforms that
Classification of Machines
Classification of Machines This application note will provide a basis for selection of the machinery list of a Predictive Maintenance (PM) data collector program. Creating a PM mach
Eccentricity Shaft Eccentricity plays a very important role as part of a Turbine Supervisory Instrumentation (TSI) System on large steam turbines and should be included in retro-fit p
Eddy Current (Proximity Probe) Transducer Installation: Part 1 Radial Vibration
Eddy Current (Proximity Probe) Transducer Installation: Part 1 Radial Vibration Eddy Current Transducers (Proximity Probes) are the vibration transducer of choice when installing vibrat
Fault Detection / OK Circuits
Fault Detection / OK Circuits Over the years, two methods of vibration transducer fault detection have become prominent: OK Circuits and Fault Detection Circuits. The objective of b
Field Service
Field Service Proper installation is critical to the performance, integrity and credibility of your Vibration Monitoring or Information System. A proper installation is dependent on, qua
Field Wiring
Field Wiring There are a number of items to consider when installing a permanently mounted vibration monitoring system. One of the most critical considerations is the selection and insta
Journal Bearings
Journal Bearings Industrial machinery with high horsepower and high loads, such as steam turbines, centrifugal compressors, pumps and motors, utilize journal bearings as rotor supports.
Machine Classifications
Machine Classifications The type of vibration monitoring system to install on a machine train will depend upon how the machine train is used in the plant process. A very important machin
Reciprocating Compressors
Reciprocating Compressors Reciprocating Compressors are utilized in all manufacturing industries. Because these machines are capable of providing high pressure along with variable loading,
Reverse Dial Alignment
Reverse Dial Alignment Mis-alignment can be the most usual cause for unacceptable operation and high vibration levels. New facilities or new equipment installations are often plagued
System Response
System Response An understanding of how a spring mass system responds to vibratory influences is helpful in understanding, recognizing and solving many problems encountered in vibrati
Thrust Position
Thrust Position Thrust Position Monitoring was one of the earliest applications for Eddy Current Transducers. When utilized for this application, it is one of the most important componen
Transient Analysis
Transient Analysis Transient analysis is the study of how various signals change during a machine's process or load change. This analysis is particularly important during a machine's
Turbine Supervisory Instrumentation
Turbine Supervisory Instrumentation Improve Reliability and Performance with a TSI from STI Vibration Monitoring STI’s Turbine Supervisory Instrumentation (TSI) Systems provide cont
SKF Bearing Life Cycle
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