Trolley Trolley Type Push Maximum Load Capacity 1 000 lb Trolley Frame Material Cast Iron For Beam Shape Flat For Minimum Beam Flange Width 2 3/8 in For Maximum Beam Flange Width 5 5/8 in Headroom to Connecting Shaft 5 11/32 in Headroom to Mounting Point 1 5/8 in For Minimum Beam Height 3 in For Maximum Beam Height 15 in Includes Hanger Plate Hanger Shaft Washers Minimum Radius Curve 23 5/8 in Trolley Wheel Diameter 2 1/5 in Trolley Wheel Material Steel