“It’s like being a detective without a magnifying glass. You’re missing the essential tool that helps you uncover the smallest details and piece together the puzzle of what’s causing the issues.”


Reliability engineers and vibration analysts use bearing fault frequencies to diagnosis root cause failure. There are inherent limitations that can occur when not utilizing an extensive bearing frequency database as part of that analysis.

Difficulty in Identifying Faults: Bearing frequency data libraries provide specific vibration frequency information associated with various fault types, such as:

  • defects in raceways
  • rolling elements
  • lubrication issues

Without access to these libraries, clients may struggle to accurately identify the root cause of vibrations in their machinery. This can lead to delays in diagnosing faults and implementing appropriate corrective actions.

Limited Comparisons and Benchmarks: Clients are unable to compare their vibration measurements with established benchmarks and known fault frequencies.

  • This comparison to vetted bearing frequency data helps in confirming the presence of faults and assessing their severity.
  • Without access to these libraries, clients may lack reference points for comparison, making it challenging to gauge the significance of vibration signals and determine the urgency of maintenance actions.

Increased Reliance on General Knowledge: In the absence of bearing frequency data libraries, clients may have to rely more heavily on general knowledge and industry guidelines for vibration analysis.

  • While general knowledge provides some guidance, it may not cover the specific characteristics and fault frequencies of individual bearing models or manufacturers.
  • This can result in less accurate fault identification and potential misinterpretation of vibration data and is especially difficult for newer analysts with less experience.

Reduced Accuracy in Trend Analysis: Trend analysis is an essential aspect of vibration analysis for monitoring the progression of faults over time.

  • Bearing frequency data libraries play a crucial role in establishing accurate trends and detecting changes in vibration patterns.
  • Without access to these libraries, clients may experience reduced accuracy in trend analysis, making it difficult to predict impending failures and plan maintenance activities proactively.

Increased Reliance on Equipment Experience: Clients may rely more on their own experience with similar equipment to interpret vibration data and identify potential faults.

  • While experience can be valuable, it may not encompass the full range of fault frequencies and characteristics exhibited by different bearing models.
  • This can lead to limitations in fault identification and a higher risk of overlooking critical issues.

To address these challenges, there are strategies clients can consider. However, utilizing an independent bearing library is the quickest and most efficient way for clients to perform effective vibration analysis and make informed maintenance decisions to mitigate the risks associated with faulty bearings.

Utilize Independent Bearing Vibration Library: Complement existing reliability tools.

  • Clients can identify bearing data for most bearing manufacturers and bearing types with a single search.
  • These tools immediately and directly address the need to identify and compare vibration data for multiple manufacturers to accurately diagnose the root cause of vibrations in their machinery.

Collaborate with Experts:

  • Engage with vibration analysis experts or consultants who have extensive experience in specific machinery or bearing types.
  • Their expertise can compensate for the lack of specific frequency data libraries by leveraging their knowledge and practical insights.

Consult Bearing Manufacturers:

  • Seek assistance from bearing manufacturers to obtain frequency data specific to the bearing models used in the machinery.
  •  Manufacturers may have access to proprietary data or technical resources that can aid in accurate fault identification and analysis.

Utilize Industry Standards and Research:

  • Refer to industry standards, research publications, or textbooks that provide general vibration analysis guidelines and principles.
  • These resources can serve as a starting point for analysis, offering insights into fault frequencies and general trends, even without access to specific bearing frequency data.

Establish Collaboration Networks:

  • Engage with industry peers, associations, or forums to share knowledge and experiences related to vibration analysis.
  • Collaborating with others in similar industries or with similar equipment can provide valuable insights and alternative approaches for fault identification and analysis.

International Source Index, Inc. provides the most extensive bearing vibration library available worldwide. The Bearing Experttm enables clients to compare vibration data for all major manufacturers and for all bearing types. A simple part number search generates vibration data for all manufacturers for that size and type bearing with configuration, dimensions, and harmonics eliminating the challenges highlighted above. https://sourceindex.com/trial