Bridge: That part of an overhead crane consisting of girders, trucks, end ties, walkway, and drive mechanism which carries the trolley and travels in a direction parallel to the runway.
Bridge Rail: The rail supported by the bridge girders on which the trolley travels
Capacity: The maximum rated load (in tons) which a crane is designed to handle
Clearance: Minimum distance from the extremity of a crane to the nearest obstruction.
CMAA: Crane manufacturers Association of America, Inc. (formerly EOCI – Electric Overhead Crane Institute).
Electric Overhead Traveling Crane: An electrically operated machine for lifting, lowering, and transporting loads, consisting of a movable bridge carrying a fixed or movable hoisting mechanism and traveling on an overhead runway structure.
End Truck: The unit consisting of the truck frame, wheels, bearings, axles, etc., which supports the bridge girders.
Gantry Crane: A crane similar to an overhead crane except that the bridge for carrying the trolley or trollies is rigidly supported on two or more legs running on a fixed rail or other runway.
Girders: The principal horizontal beams of the crane bridge which supports the trolley and is supported by the end trucks.
Wire Rope Hoist: Machinery that is used for lifting.
Lift: Maximum safe vertical distance through which the hook, magnet or bucket can move.
Footwalk: The walkway with handrail and toeboards, attached to the bridge or trolley for access purposes.
Runway: The rails, beam, brackets and framework on which the crane operates.
Click here to view/download More Crane Terminology
