LIFE PREDICTING METHOD FOR ROLLING BEARING, LIFE PREDITING DEVICE, ROLLING BEARING SELECTING DEVICE USING LIFE PREDICING DEVICE, PROGRAM AND ENVIRONMENT FACTOR DETERMINING METHOD

摘要

To predict a correction rated life with high accuracy.A life predicting device executes steps S1,S2,S4 for inputting specification information including basic dynamic rated load C and basic static rated load C0,step 5 for computing an equivalent load P based on the specification information,step S3 for setting a reliability factor a1,steps S7 and S8 for determining a contact ellipse area S,step S9 for inputting debris purchasing diameter ddebris,step 10 for determining a standardized debris diameter(ddebris/√S),step S11 for setting a life correction factor axyz based on the standardized debrics diameter,and steps S6 and S12 for calculating a correction rated life Lnm based on the reliability factor,the life correction factor,the basic dynamic rated load and the equivalent load.