Ball Bearing Dataset

As part of this work, a dataset is developed to investigate the vibration behavior of type 6314 rolling element bearings under controlled operating conditions. The objective is to analyze the differences between healthy and artificially damaged bearings and to evaluate the transferability of the identified fault characteristics to real-world industrial applications. The experiments are conducted on a dedicated bearing test rig, where baseline measurements of healthy bearings are first acquired. Subsequently, representative fault conditions are deliberately introduced to generate reproducible damage scenarios, enabling a systematic analysis of vibration signatures under different bearing health states. 

As shown in Figure, the APS 58 bearing test rig consists of an electric drive unit, a bearing test housing, and two pneumatic actuators for applying controlled radial and axial loads to the test bearing. The experimental investigations are performed using SKF 6314 deep-groove ball bearings. In addition to healthy reference bearings, artificially damaged specimens are investigated. The faulted bearings include laser-induced defects on the inner raceway and outer raceway, as well as corrosion-induced damage to represent different fault mechanisms. For the outer raceway fault condition, the bearing is installed such that the defect is located within the primary load zone to ensure consistent fault excitation during operation. The rotational speed of the test bearing is measured using an Autosen A0014 optical sensor, with the speed signals acquired at a sampling frequency of 1 kHz. Vibration measurements are performed using a PCB-603C01 piezoelectric accelerometer mounted on the bearing housing. The vibration signals are acquired through a National Instruments (NI) data acquisition system at a sampling frequency of 51.2 kHz.