GEARED BEAM TROLLEY - The Geared Beam Trolley is designed for the user who has a precision lift and needs the ability to move slowly across the beam with the least amount of sway, the precision ball bearing trolley wheels make it easy to maneuver heavy loads into position at any given point along the I, S, or W beam. The GBT has anti drop plates, double baked enamel paint, with individual test certifications, and serial numbers for complete traceability.