Positive Displacement / Steering Roll assemblies consist of a stationery base & movable frame with idler rollers. Two pair of TWE Nylaguide bearings support the moving frame. Positive displacement guides are suitable where long entry span is not available like on printing m/cs. Steering roll guides are available in single or double roller assembly and are idle for machines where, long free entry span is available. All these guides are designed for minimum web stress & can be installed horizontally, vertically or up-side down.