When size and strength are in demand, CAMCO heavy-duty index drives deliver. The E-Series drive's compact, low-profile design keeps floor space requirements to a minimum while handling dial plate applications up to 50 feet in diameter and static loads in excess of 500,000 lbs. A large center thru hole accommodates a stationary center post, electrical wiring and air or hydraulic lines. Precise, stable and durable, this drive can handle the extremes.