Looking for Schaeffler group/FAG bearings supplier
I called our bearing supplier here in MN and this is what they told me. They are just standard bearings.
6008-2SRS crosses to 6008-2RS they have it in a SKS
They are having trouble with the 61915-2SRS it seems to be discontinued so he is doing some checking and will call me back.
If you want the bearing company send me a PM and I'll shoot you there info.