Condition Based Monitoring (CBM)

Conditioned-Based-MonitoringUtilizing state-of-the-art Ultrasonic Technologies, our Condition Based Monitoring (CBM) Program is your eyes and ears for monitoring bearings, gears, pumps and valves. The CBM Program is a web-based system giving maintenance and executive personnel 24/7 access. Our CBM Program can increase machine life expectancy, reduce downtime, increase equipment reliability and justify maintenance costs, all while improving communication between maintenance and management.


  • Simplify data collection.
  • Organize data collection, planned maintenance, and schedules.
  • Flag suspect equipment.
  • Notify management of potential problems automatically.
  • Trend ultrasound test data with graphs and reports.
  • Compare ultrasound test data easily.
  • Share important test data via the Web.
  • Create reports with key data metrics for individual pieces of equipment or entire locations.
  • Export report data for customized reports.

Condition monitoring and predictive maintenance have traditionally been performed through vibration analysis, infrared and other technologies. Ultrasonic technology is an excellent option, especially for organizations with lower budgets. Ultrasonic detectors are capable of accurately interpreting the sounds created by under-lubrication, over-lubrication and early signs of wear. The right ultrasonic technology is a fast and effective means of determining such conditions in moving, mechanical components such as bearings, gearboxes, motors, compressors, etc.

Ultrasound is produced by friction, impact, turbulence and electrical discharge. Friction and impact are the by-products of mechanical equipment. For example, a roller bearing will produce friction as the shaft and balls roll around the center. If there is too much friction, however, problems begin to occur on the equipment due to imbalance, or the bearing might seize, thereby shutting down equipment altogether. Proper lubrication of critical bearings is important at all times. A properly lubricated bearing will produce a smooth rolling ultrasound, detectable by an ultrasonic receiver whose microphone can be placed in contact with the housing.

If the bearing is over-lubricated, very little ultrasound can be heard through the headset. If the bearing is under-lubricated, the intensity of the bearing will increase dramatically, and other sounds may be produced such as fluttering or scratchiness. Indications of an under-lubricated bearing will appear in ultrasound even before infrared can detect heat increases and well in advance of vibration analysis.

In addition, once a bearing begins to wear, the ultrasonic wave will produce large spikes in the signal caused by flat spots or scratches on the race. The spikes are heard as pops or crackles through the headset. Once the ultrasound produced by the bearing begins to indicate these characteristics, the replacement of the bearing can be planned during normal production shutdown. The detection of wear is instantaneous. It is not necessary to take readings of the bearing from several points of contact along different axes and send the readings away for analysis.

Gettle offers comprehensive condition based monitoring (CBM) services including:

Compressed Air Systems Energy Savings Program
Steam Systems
Rotating Equipment
Leak Detection

Contact us today to learn more about how we can help keep your power systems running at peak performance.
Gettle's Condition Based Monitoring Program can increase machine life expectancy/equipment reliability, reduce downtime and justify maintenance costs.
2745 Blackbridge Road
York, PA
Phone: 1-800-758-0780