Details
| Original language | English |
|---|---|
| Article number | 230 |
| Journal | Lubricants |
| Volume | 12 |
| Issue number | 7 |
| Publication status | Published - 21 Jun 2024 |
Abstract
This study investigates the effects of harmful bearing currents on the service life of rolling bearings and introduces a model to predict service life as a function of surface roughness. Harmful bearing currents, resulting from electrical discharges, can cause significant surface damage, reducing the operational lifespan of bearings. This study involves comprehensive experiments to quantify the extent of electrical stress caused by these currents. For this purpose, four series of tests with different electrical stress levels were carried out and the results of their service lives were compared with each other. Additionally, a novel model to correlate the service life of rolling bearings with varying degrees of surface roughness caused by electrical discharges was developed. The basis is the internationally recognized method of DIN ISO 281, which was extended in the context of this study. The findings show that the surface roughness continues to increase as the electrical load increases. In theory, this in turn leads to a deterioration in lubrication conditions and a reduction in service life.
Keywords
- electrical discharge, service life calculation, electrical bearing current, bearing surface wear, electrical bearing damage
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Surfaces, Coatings and Films
Sustainable Development Goals
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In: Lubricants, Vol. 12, No. 7, 230, 21.06.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effect of Harmful Bearing Currents on the Service Life of Rolling Bearings
T2 - From Experimental Investigations to a Predictive Model
AU - Schneider, Volker
AU - Krewer, Marius
AU - Poll, Gerhard
AU - Marian, Max
N1 - Publisher Copyright: © 2024 by the authors.
PY - 2024/6/21
Y1 - 2024/6/21
N2 - This study investigates the effects of harmful bearing currents on the service life of rolling bearings and introduces a model to predict service life as a function of surface roughness. Harmful bearing currents, resulting from electrical discharges, can cause significant surface damage, reducing the operational lifespan of bearings. This study involves comprehensive experiments to quantify the extent of electrical stress caused by these currents. For this purpose, four series of tests with different electrical stress levels were carried out and the results of their service lives were compared with each other. Additionally, a novel model to correlate the service life of rolling bearings with varying degrees of surface roughness caused by electrical discharges was developed. The basis is the internationally recognized method of DIN ISO 281, which was extended in the context of this study. The findings show that the surface roughness continues to increase as the electrical load increases. In theory, this in turn leads to a deterioration in lubrication conditions and a reduction in service life.
AB - This study investigates the effects of harmful bearing currents on the service life of rolling bearings and introduces a model to predict service life as a function of surface roughness. Harmful bearing currents, resulting from electrical discharges, can cause significant surface damage, reducing the operational lifespan of bearings. This study involves comprehensive experiments to quantify the extent of electrical stress caused by these currents. For this purpose, four series of tests with different electrical stress levels were carried out and the results of their service lives were compared with each other. Additionally, a novel model to correlate the service life of rolling bearings with varying degrees of surface roughness caused by electrical discharges was developed. The basis is the internationally recognized method of DIN ISO 281, which was extended in the context of this study. The findings show that the surface roughness continues to increase as the electrical load increases. In theory, this in turn leads to a deterioration in lubrication conditions and a reduction in service life.
KW - electrical discharge
KW - service life calculation
KW - electrical bearing current
KW - bearing surface wear
KW - electrical bearing damage
UR - http://www.scopus.com/inward/record.url?scp=85199489352&partnerID=8YFLogxK
U2 - 10.3390/lubricants12070230
DO - 10.3390/lubricants12070230
M3 - Article
VL - 12
JO - Lubricants
JF - Lubricants
SN - 2075-4442
IS - 7
M1 - 230
ER -