Geared trolley Description (1)Geared trolley should be formed a complete set with chain hoist or other lifting machines. (2)Geared trolley should be fit on the bottom flange of I-beam to compose a running lifting trolley.(3)There are ball bearings are inlayed in the wheels of the geared trolley. (4)The geared trolleyis a lifting machine that has high efficiency in operation with small hand-push force.