No, the original 500/750 was greased by a nipple at each end of the long bolt feeding greas direct to a scroll on the outer surface of the collar, later ones had only 1 nipple screwed into swing arm and you had to fill cross tube of swing arm with grease before it got to a radial groove on the collar.
Dimensionally the colkars were identical but visually very different and for some reason Honda obsoleted the later one