The present invention relates to a mechanism for a sliding-type glass pane, of those formed by a top guide profile, placed against the wall and provided with a rib on which a rolling element moves; a bottom guide; a suspension device and top retaining stops, in which the suspension device has a larger outer plate and two smaller inner plates, which define a space between them in which the rolling element is housed and in which the top retaining stops are provided with respective horizontal flats so as to retain the cylinders.