Specifications include, but are not limited to: FRAME CONSTRUCTION Welded tubular and formed steel. FRAME PIVOT Aerator frame connected to 3-point hitch frame via pivot assembly. Pivot assembly automatically centers and locks during transport. PIVOT DAMPNER Shock absorber type dampener stabilizes connection from frame pivot to aerator frame. SMOOTHING ROLLER Rear mounted, 6" diameter steel roller minimizes soil disruption and controls aerating depth. DRIVE TRAIN Tractor PTO powers gearbox driving jackshaft which powers drive rotor via belts DRIVE LINE 1-3/8" splined PTO shaft assembly with safety shield. GEAR BOX Right angle gear box with 1:1 drive ratio. DRIVE PULLEYS & BELTS Grooved pulley driving grooved pulley via (4) "bx" section belts ROTOR SHAFT Single piece, 1-1/8" diameter, hex shaped shaft supported at each end by heavy duty bearings. ROTOR ASSEMBLIES (6)Rotorstimedandspacedonhexshaft.Rotorbearingsareoffset5˚fromcenter shaft, resulting in high frequency side to side tine vibration. Each rotor holds 32 tines. ROTOR BEARINGS Double sealed tapered roller bearings.