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Disassembled jet engine parts

Jet engine oil system, part 2

Main engine shafts are supported by bearings in certain strategic places, depending on the number of shafts, the load shafts and length of the engine. The main shaft, other bearings and gears are gathered inside engine oil sumps. Each rotating shaft must have at least one thrust ball bearing. Oil sumps are a part of the oil circuit, where oil must remain. Leakage outside the oil system could pollute the air bleeds or result in an engine fire.

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1/1/2017

Technical topics

  • Inside view of an aircraft gas turbine engine

    Jet engine oil system, part 1

    International air regulations require that each engine is equipped with a self-contained oil system capable of providing continuous oil flow to the engine. Visit the page to find out more.

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    Mobil Jet oils deliver performance to more than 11,000 engines (commercial, military and aircraft-type gas turbine) and are designed to meet today and tomorrow's aviation challenges.

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    FAQs

    Find answers to general ExxonMobil aviation questions or explore our other FAQ pages about jet turbine oils, hydraulic fluids, piston engine oils, greases and gear oils.

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