Journal of Failure Analysis and Prevention

, Volume 8, Issue 5, pp 419–425 | Cite as

Failure of an Oil Pump Bevel Gear

  • Aabed Saud Saber
Case History---Peer-Reviewed


Two oil pump bevel gears suffered both breakage and wear. The oil pump was a gas turbine oil pump that had been in service for 3 years. Material and case-hardening examinations showed that both of these were satisfactory. Also, lube oil analysis showed no abnormality of any kind. The probable mechanism for the breakage and wear is shock overloading followed by abrasive wear caused by the debris of the broken teeth.


SEM Pumps Gas turbine Carburized Alloy steel 


  1. 1.
    Failure of Gears, vol. 11, 9th edn. ASM Handbook, American Society of Metals, Metals Park, OH, 1986Google Scholar
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    Carburized and Carbonitrided Steels, vol. 9, 9th edn. ASM Handbook, American Society of Metals, Metal Park, OH, 1985Google Scholar
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Copyright information

© ASM International 2008

Authors and Affiliations

  1. 1.Consulting Services DepartmentSaudi Aramco DhahranSaudi Arabia

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