Direct-insert separated window wheel

The utility model relates to a window wheel for a sliding al-alloy door & window, the utility model is composed of an adjusting screw, an inner shell and a wheel; the inner shell and the wheel can be orderly sheathed in the outer shell; the inner shell and the wheel can be fixed by a wheel shaft; a groove is arranged on the outer shell; the inner shell can be placed in the groove of the inner shell; the inner shell can move from top to bottom along the groove side of the outer shell; the bottom in the outer shell is provided with a plurality of springs; the springs can tightly push the bottom of the inner shell; the adjusting screw can penetrate the side surface of the outer shell and can tightly push the same side surface of the inner shell the direct-insert separated window wheel has rapid and convenient operation and can be replaced at any time.