SYMPOSIA PAPER Published: 01 January 1982
STP36132S

Materials Evaluation by Flat Washer Testing

Source

A flat washer test for assessing the rolling contact fatigue performance of bearing materials is described in detail. Measurements of the life of commercial bearing quality SAE 52100 steel has established the baseline against which the relative performance of different steels or developments in heat treatment and bearing manufacturing can be judged. The life of carburized SAE 8720 steel has been shown to be inferior to that of SAE 52100 because of the lower level of cleanness of carburizing steels. Electroslag remelting of SAE 52100 produces an improvement in life. Heat treatment to produce lower bainite in SAE 52100 is advantageous, particularly under conditions of water-contaminated lubrication or where the use of fire-resistant fluids is required. Sinter forging is a viable production route for SAE 52100 bearings when the powder oxygen content is controlled.

Author Information

Hampshire, JM
Bearing Research Centre, RHP Bearings Limited, Newark, Notts, England
Nash, JV
Bearing Research Centre, RHP Bearings Limited, Newark, Notts, England
Hollox, GE
Bearing Research Centre, RHP Bearings Limited, Newark, Notts, England
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Details
Developed by Committee: A01
Pages: 46–66
DOI: 10.1520/STP36132S
ISBN-EB: 978-0-8031-4836-9
ISBN-13: 978-0-8031-0712-0