Leakless / Greaseless? Water Pump Cartridge

[AlphaBob]

Quick question: I've got the Leakless Water Pump Cartridge shown in the attached picture and there isn't a hole in the side of the cartridge for grease to reach the unit via the external grease fitting. I'm assuming that I simply grease the roller bearing prior to installing the shaft and that that the only way to add more grease at a later time is to disassemble the pump. Am I correct?