2.3 Eccentrical Cams, Clamping Bolts Shaft clamping units

	GN 919 Hubs with eccentric cam		GN 917 Double cam lever		GN 917.1 St. Steel - Double cam lever
	GN 918 Eccentrical cam		GN 918.1 Clamping bolt		GN 918.2 Clamping bolt
	GN 928 Shaft clamping units "trueround"