The EZ Spot UR Chain Rotating Base is primarily used with the EZ Spot UR Barrel Handler. The Chain Base has a 2.94" 4140 shaft to fit the 3" square receiver on the barrel handler. The shaft rotates 350° non-continuous (175° right, 175° left) with a double 40 chain and a hydraulic motor. The base comes standard with the universal quick 'tach. Special bolt-on mounts can be purchased for use on an excavator, wheel loader, telehandler, backhoe, or any machine you want to adapt it to fit. Specifications Attaches to a skid steer or any other machine that is equipped with the Universal Quick 'Tach mounting system. Base weighs 420 lbs. 2.94" 4140 square shaft. 3/4" pin for securing the attachment to the base. Hydraulic motor rotates the shaft. Displacement: 9.7 cubic inches per revolution Torque: 2059 in-lb at 1650 ΔPSI Shaft rotates 350° non-continuous (175° right, 175° left). Sprocket on shaft is 5.75" for a double 40 chain. Two tapered roller bearings provide smooth rotation Composed of Grade 50 steel and core welded to withstand years of wear and tear. Comes complete with hoses, flush faced couplers, spring hose mount, and wiring harness. Can be adapted to fit excavators, wheel loaders, telehandlers and backhoes with a special bolt-on mount.