Front air suspension for 10-11m travling bus, adopting overseas advanced technology, some key parts or conponentsare imported ones, like air bag, leveling valve, shock absorber, etc. Used together with rear air suspension DW110R. Specifications are as follows:Type: Front air suspension for 10-11m bus Model: DW55F Structure:5 link-rods guiding Distance between the centers of the leaf-springs: 890mm Rated Load: 5000--5500kg Air bellow installation height: 290mm Axle dynamic stroke: 200mm (up 100, lower 100) Distance between the air bellows:1057mm System frequency: 1.1--1.3 Hz Matched with Meritor axle