Abstract: A workpiece carrier means for a surface grinding machine providing in a rockable carrier arm a revolving workpiece holder which holds plural workpieces, feeding the plural workpieces in between grinding wheels while simultaneously revolving them, providing an automatic limited revolution mechanism, the plural workpieces being simultaneously loaded on and unloaded from the revolving workpiece holder by means of a loading arm and an unloading arm having workpiece adsorption members; thereby accomplishing as fine finishing accuracy and an improved work efficiency at the same time.

Abstract: A grinding wheel position detecting means for a surface grinding machine, in which a super-grain grinding wheel is composed of a base metal fastened to a longitudinal end portion of a rotating shaft and a super-grain layer provided on a longitudinal end face of said base metal, and a longitudinal end face of the super-grain layer is utilized as a grinding surface.