The product series DZJ have the following peculiarities:simple structure,short breaking delay's time,powerful brake torque,and its biggest advantage is that they can be fied levelly or vertically without any limit of the installation angle. They can be used for braking and locating in machanical transimission systems,such as precise machines,printing machines,packing machines,experimental equipmente etc. Warning Eriction disc and armature surface should be kept clean and free of grease. When fixing,the airgap"δ"should be kept to the specified value. The gear hub are not allowed to move along axially. Turn the hollow bolt so that it is fixed on the back cover or the flange plate.