Trolley, Trolley Type Push, Maximum Load Capacity 4,800 lb, Trolley Frame Material Cast Aluminum, For Beam Shape Flat, Tapered, For Minimum Beam Flange Width 2 7/8 in, For Maximum Beam Flange Width 7 7/8 in, Headroom to Connecting Shaft 2 1/2 in, Headroom to Mounting Point 1 11/32 in, For Minimum Beam Height 24 in, For Maximum Beam Height 24 in, Includes Not Applicable, Minimum Radius Curve 78 7/8 in, Trolley Wheel Diameter 4 2/5 in, Trolley Wheel Material Cast Iron