Abstract: A chain for a trough conveyor includes individual chain links connected with each other by hinge bolts. Removable flight attachment members, which may be flat or curved, connected with each other by at least one cross piece are provided on both sides of the chain links. Two bearing blocks are provided, each with a bore for receiving the hinge bolt. The cross piece rests on the trough by way of a rest surface. At least one support surface disposed in relation to the cross piece in the direction of the chain serves for preventing the tipping of the flight attachment arms when under the action of operating forces. An alternative embodiment includes a dual U-shaped frame about a frame of bearing blocks and cross pieces.