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Reliability of Bearing Life and Investigation of Affecting Factors

Year 2020, Volume: 61 Issue: 700, 198 - 207, 15.08.2020
https://doi.org/10.46399/muhendismakina.749835

Abstract

Bearings can be classified as a rolling bearings and journal bearings. Bearings supports the shaft or axle loads usually have been occurred from gear, pulley, flywheel etc. In the bearing catalogues, the dynamic load rating (C) values given for each bearing are 90% reliable. When higher reliability is desired, the selection can be made using the relevant standards. During operation, bearing life and reliability are significantly reduced and premature damage occurs from improper lubrication, wrong bearing type selection, oil pollution, assembly damage, etc. In this study, considering the related ISO and DIN standards, the effects of factors on bearing life have been investigated such as reliability, oil contamination level, operating temperature, viscosity etc.

References

  • 1. Wittel, H., Jannasch, D., Vobiek, J., Spura, J. 2019. Rolof/Matek Maschinenelemente, ISBN: 978-3-658-26279-2, 24. Auflage, Springer Vieweg, Berlin, Germany.
  • 2. Şekercioğlu, T. 2018. Makine Elemanları Hesap Şekillendirme, ISBN: 978-975-511-601-3, 4. Baskı, Birsen Yayınevi, İstanbul.
  • 3. Lundberg, G., Palmgren, A. 1952. “Dynamic Capacity of Roller Bearings,” Inginioersvetenskapsakad. Handl. no. 210, The Royal Swedish Academy of Engineering Science, Stockholm, Sweden.
  • 4. Zaretsky, E. V. 2013. Rolling Bearing Life Prediction, Theory, and Application, NASA/TP-2013-215305, Ohio, U.S.A.
  • 5. ISO 281. 2007. Rolling Bearings-Dynamic Load Ratings and Rating Life.
  • 6. BS ISO 4406. 2017. Hydraulic fluid power-Fluids-Method for Coding the Level of contamination by solid particles.
  • 7. DIN 31653-2. 1991. Gleitlager - Hydrodynamische Axial Gleitlager im Stationären Betrieb Funktionen Für Die Berechnung Von Axialsegmentlagern.
  • 8. SKF. 2018. Rolling Bearings, PUB BU/P1 17000/1 EN.
  • 9. Schaeffler Technologies AG & Co. KG. 2018. Rolling Bearings HR1, Schweinfurt, Germany.
  • 10. NSK. 2020. “Bearing life-Calculating the Basic Fatigue Life Expectancy of Rolling bearings” https://www.nskeurope.com/content/dam/nskcmsr/downloads/literature_bearing/P_TI-0102_EN.pdf. 25.06.2020.
  • 11. Jiang W. 2019. Analysis and Design of Machine Elements, John Wiley & Sons, Singapore.
  • 12. NACHI. 2020. “Nachi Bearing Catalogue-Technical Information” http://nachi-tool.jp/bearing/pdf/Tech.pdf, 25.06.2020.

Rulman Ömürlerinde Güvenilirlik ve Etkileyen Faktörlerin İncelenmesi

Year 2020, Volume: 61 Issue: 700, 198 - 207, 15.08.2020
https://doi.org/10.46399/muhendismakina.749835

Abstract

Yataklar genel olarak, yuvarlanmalı (rulmanlar) ve kaymalı yataklar olmak üzere ikiye ayrılabilir. Rulmanlar, dişli çark, kasnak, volan vb. makine elemanları üzerinden mil veya aksa gelen yükleri karşılayabilmek için destek elemanı olarak görev yaparlar. Rulman kataloglarında, her bir rulman için verilen dinamik yük sayısı (C) değerleri, %90 güvenilir kabul edilmektedir. Daha yüksek güvenirlik istenildiğinde, ilgili standartlardan yararlanılarak seçim yapılabilir. Çalışma anında, uygun olmayan yağlama, yanlış tip rulman seçimi, kirlilik, montaj hasarları vb. nedenlerden dolayı rulman ömürleri ve güvenilirlik ciddi oranlarda azalmakta ve erken hasarlar meydana gelmektedir. İlgili ISO ve DIN standartları göz önünde bulundurularak, güvenilirlik, yağın kirlilik seviyesi, çalışma sıcaklığı, viskozitesi vb. faktörlerin rulman ömrü üzerine olan etkileri incelenmiştir.

References

  • 1. Wittel, H., Jannasch, D., Vobiek, J., Spura, J. 2019. Rolof/Matek Maschinenelemente, ISBN: 978-3-658-26279-2, 24. Auflage, Springer Vieweg, Berlin, Germany.
  • 2. Şekercioğlu, T. 2018. Makine Elemanları Hesap Şekillendirme, ISBN: 978-975-511-601-3, 4. Baskı, Birsen Yayınevi, İstanbul.
  • 3. Lundberg, G., Palmgren, A. 1952. “Dynamic Capacity of Roller Bearings,” Inginioersvetenskapsakad. Handl. no. 210, The Royal Swedish Academy of Engineering Science, Stockholm, Sweden.
  • 4. Zaretsky, E. V. 2013. Rolling Bearing Life Prediction, Theory, and Application, NASA/TP-2013-215305, Ohio, U.S.A.
  • 5. ISO 281. 2007. Rolling Bearings-Dynamic Load Ratings and Rating Life.
  • 6. BS ISO 4406. 2017. Hydraulic fluid power-Fluids-Method for Coding the Level of contamination by solid particles.
  • 7. DIN 31653-2. 1991. Gleitlager - Hydrodynamische Axial Gleitlager im Stationären Betrieb Funktionen Für Die Berechnung Von Axialsegmentlagern.
  • 8. SKF. 2018. Rolling Bearings, PUB BU/P1 17000/1 EN.
  • 9. Schaeffler Technologies AG & Co. KG. 2018. Rolling Bearings HR1, Schweinfurt, Germany.
  • 10. NSK. 2020. “Bearing life-Calculating the Basic Fatigue Life Expectancy of Rolling bearings” https://www.nskeurope.com/content/dam/nskcmsr/downloads/literature_bearing/P_TI-0102_EN.pdf. 25.06.2020.
  • 11. Jiang W. 2019. Analysis and Design of Machine Elements, John Wiley & Sons, Singapore.
  • 12. NACHI. 2020. “Nachi Bearing Catalogue-Technical Information” http://nachi-tool.jp/bearing/pdf/Tech.pdf, 25.06.2020.
There are 12 citations in total.

Details

Primary Language Turkish
Subjects Engineering
Journal Section Energy Performance Evaluation of University Buildings: MCBU Köprübaşı Vocational School Example
Authors

Tezcan Şekercioğlu 0000-0002-9359-8843

Publication Date August 15, 2020
Submission Date June 9, 2020
Acceptance Date June 30, 2020
Published in Issue Year 2020 Volume: 61 Issue: 700

Cite

APA Şekercioğlu, T. (2020). Rulman Ömürlerinde Güvenilirlik ve Etkileyen Faktörlerin İncelenmesi. Mühendis Ve Makina, 61(700), 198-207. https://doi.org/10.46399/muhendismakina.749835

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ISSN : 1300-3402

E-ISSN : 2667-7520