Review on Marathon 9X3 50 4 Wheel Centered Bushings by Chris Sanders

Description says 3/4" bearings. there's no support in these things. Is that misleading or am I missing something? Oilers are there, but what do you use to lubricate that huge empty tube? The tires, the I'm replacing have a roller bearing that runs the full length of the hub shaft.Inside the bearing is a removable sleeve that the bolt goes through.If this wheel doesn't have bearings it won't cause the outer seal to move (which holds the bolt) eventually wears out due to rotation around the bolt? Anyone who has used it without a bottom bracket please let me know what your experience is as I don't understand how this is supposed to work at the moment.