SUPPORT STRUCTURE OF A FLAP AT THE REAR OF AN AIRCRAFT WING WITH DOUBLE-ROW CONCAVE ROLLER BEARING

An edge flap arrangement (2) for an aircraft wing (1) includes a main flap element (2) and an actuator (7). A linkage arrangement supports the main flap (2). The linkage arrangement includes a drop hinge link arrangement (5). The drop hinge link arrangement (5) includes a fixed strut (5a) and a drop link (5c). The fixed strut (5a) and the drop link (5c) are pivotally connected by a hinge point (5b). The hinge point (5b) includes a double-row concave roller bearing. The double-row concave roller bearing includes an inner member, an outer member, and a plurality of concave rollers (115). Any combination of the inner member, the outer member, and the concave rollers are fabricated from CREN, Cronidur 30, XD15NW, 422 Stainless Steel, CRES, and/or 440C Stainless Steel. A prong cage is disposed between the inner member and the outer member. The prong cage includes a plurality of first rails and a plurality of second rails. Opposing pairs of first rails and second rails define a plurality of pockets.