In addition to the inputs for a single row bearing, the distance between the row centers has to be defined. Generally, the same results are obtained as if using a single row bearing with a bearing configuration of two rows; however, the results will differ if the configuration shows different positions of shoulders under axial load. An additional difference is the load capacity which is shown for the double row bearing.
The different bearing types can be selected in the options dialog as well.
The Y-factor for ISO 281 life calculation is not specified in the standard, a value of Y=0.6 with e=0.2 is used like in some bearing catalogs.