Cross slide coupling,,45 steel material available work surface, need to improve its hardness. Request lower Q275 steel, can also be used for treatment. In order to reduce the friction and wear and use of oil from the middle hole note oil lubrication. Slipper couplings and slider coupling, the metal is circular slider, steel or wear-resisting alloy, suitable for low speed, torque bigger transmission. Slipper coupling in the end up by two fluted half couplings and a convex on both sides of the intermediate plate with teeth. For convex teeth in groove sliding, it can be installed and run two compensation between shaft of the relative displacement. Because half couplings and intermediate plate composition, not relative movement, turning ZhuDongZhou and driven shafts, the angular velocity should be equal. But in two axle relative displacement between the situation at work, intermediate plate will produce great centrifugal force, thus increasing dynamic load and wear. So choose should pay attention to the work must not be more than specified speed. The coupling is commonly used to speed 250r/min, n < shaft rigidity, and no violent shocks.