Trolley, Trolley Type Push, Maximum Load Capacity 2,000 lb, Trolley Frame Material Cast Iron, For Beam Shape Flat, For Minimum Beam Flange Width 3 in, For Maximum Beam Flange Width 8 in, Headroom to Connecting Shaft 5 9/16 in, Headroom to Mounting Point 1 27/32 in, For Minimum Beam Height 5 in, For Maximum Beam Height 24 1/2 in, Includes Hanger Plate, Hanger Shaft, Washers, Minimum Radius Curve 31 1/2 in, Trolley Wheel Diameter 2 4/5 in, Trolley Wheel Material Steel