reezvan,
may I suggest that you return these bearings and buy twin radial seal bearings, they would have the 2RS designation at the end instead of ZZ.
They have positive contact lip rubber seals on their sides. (like oil seals) - aka in Pakistan as rubber seal waalay bearing ya oil seal waalay bearings. And as most bearings in Pakistan are tricky and carry no reputation unless bought at their respective agency like SKF. pack the bearing hole with grease and with your hands squeeze the bearing from both sides - this action will cause grease to pressurize, lift the oil seal lips and enter the bearing. You can also very very carefully remove the seal and fill the cavity with a little more grease then install the seal back.
btw - It would be massively cool to see a thermador in Pakistan, I havent seen any. on the other end of the scale - heating i.e. my super had a dead eberspacher heater that used petrol fumes to heat. I got it working and it could cook the interior of the bug in no time. It was quite fun when I told my passengers that the heater actually uses petrol as fuel and is actually sitting on the petrol tank too. (they would try to jump from the moving car :D). I removed it later (you dont ever need heating in Karachi), a VW nut then bought it from me. Havent heard from him since.
