Bearing Wear Monitoring - The Bently Approach
The an ideal scenario, machines with Rolling Element Bearings would be monitored in the same way as critical journal bearing machines (vibration transducers at each bearing, bearing temperature, Keyphasor† sensor, online monitor). However, it can be economically difficult to justify that level of monitoring.
The best method for monitoring bearing temperature, wear and overall condition is through online monitoring - using either a permanently installed, continuous or scanning systems. With an online system, a proper transducer suite is needed to detect when a machine is having a problem.
In the absence of an online monitoring system, a portable data collector (PDC) is the next best approach. An important part of establishing a PDC route is defining how often the data is taken. The more often the data is collected, the more likely an early bearing failure detection will be made. But as a consequence, the cost of the condition monitoring will be higher due to more frequent data collection and analysis. The route creation and timing depend on the machine operating hours, running speed, load, process and environmental conditions, and so on.
For further information regarding roller element bearing monitoring, please contact a Bently Nevada Application & Solution Architect or Machinery Diagnostic Services engineer to assist you with recommendations.