Great info, thanks for sharingMolybdenum disulfide in grease forms a boundary layer on the surface of the metals and is intended for heavy loading on slow turning surfaces. It would be beneficial to keep it out of rolling bearing elements. Great for ball joints and pivot pins. Not so great for a ball bearing, save the polyurea for that.
Here is a very informative site involving lubrication and machinery maintenance.
Greases - Resources And Advice