Entwicklung eines kurzzeit-pitting testes zum einfluss des schmierstoffs auf die grübchentragfähigkeit von stirnrädern

Gear flank pitting results from fatigue of the base material and may lead, with increasing running time, to tooth breakage. At the same time the lubricant, consisting of base oil and additive, affects the pitting lifetime too. The DGMK research project 623 aims to develop a short duration pitting test, as an economic screening test to supplement the existing FVA pitting test methods. To force pitting in the given running time, the appropriate pressure at the tooth flank is achieved by varying the torque. Initial tests to provide a comparison to the pitting tests of the FVA research project 371 and Radev were run with Shell Spirax MA SOW and FVA2+4%A99. The DGMK short duration pitting test, as a supplement to the existing FVA pitting test methods, represents a suitable short test procedure, which classifies several lubricants of different pitting carrying capacity with good repeatability.