It is also very important we have the dimensions taken that are all incorrect, as this seems very unlikely otherwise failure would have occurred much sooner.
Is a grease sample still available if the unit failed some weeks ago?
I think it would be a good idea for you to send the failed bearings to your local SKF distributor for analysis, but again I should make it clear that this will almost certainly be a greasing issue (you will see on one of the photographs that the grease is the wrong colour, therefore factory specified grease was not being used).