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PT 500.12 Roller bearing faults kit



  • Assessment of bearing condition by vibration analysis
  • Comparison of bearings with different faults


Technical Description

Vibration analysis is a key tool in estimating the condition of a roller bearing. The slow change in the vibration spectrum provides indications of the remaining life of a bearing and can be used as a criterion for its replacement. The spectral distribution can deliver accurate information on the type and location of the damage.

This accessory setup contains six roller bearings on which different faults can be detected and explained. The radial load on the bearing can be set within broad limits using the belt drive accessory set PT 500.14 (setting of belt tension; fixed load).
The accessory setup is mounted on the base plate of the machinery diagnosis base system PT 500.

To measure and evaluate the experiment, the computerised vibration analyser PT 500.04 is required. It includes all the necessary sensors, a measuring amplifier and analysis software to record the vibration phenomena.

Learning Objectives / Experiments

- vibrational spectrum of the running noise of roller bearings
- influence of damage to outer race, inner race or roller body, on the spectrum
- estimating service lives of roller bearings
- influence of the lubricant on the vibration spectrum
- detection of faulty roller bearings
- understanding and interpreting frequency spectra
- use of a computerised vibration analyser


[1] investigation of the vibrations of roller bearings
[2] roller bearings with damaged outer race
[3] roller bearings with faulty inner race
[4] roller bearings with damaged rolling element
[5] roller bearings with combined damage
[6] long-running roller bearings
[7] new and undamaged roller bearings
[8] radial loading of bearings with PT 500.14 (belt drive)
[9] accessory set for PT 500 machinery diagnostic training system
[10] stackable storage system to house the components

Technical Data

Pendulum ball bearing of type NU204-E-TVP2
- inside diameter: d=20mm
- outside diameter: D=47mm
- width: 14mm
- number of rollers: 12

Dimensions and Weight
LxWxH: 600x400x120mm (storage system)
Weight: approx. 4kg

Scope of Delivery
6 roller bearings
1 bearing block
2 circlips
1 circlip pliers
1 storage system with foam inlay
1 manual

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