Trolley Trolley Type Push Maximum Load Capacity 10 000 lb Trolley Frame Material Cast Iron For Beam Shape Flat For Minimum Beam Flange Width 4 in For Maximum Beam Flange Width 12 in Headroom to Connecting Shaft Not Applicable Headroom to Mounting Point 7 11/16 in For Minimum Beam Height 4 in For Maximum Beam Height 12 in Includes Not Applicable Minimum Radius Curve 39 3/8 in Trolley Wheel Diameter 4 4/5 in Trolley Wheel Material Steel Compatible Series Not Applicable