a link plate and a plate - link chain for a vehicle drive . a large number of link plates are articulatingly connected with each other by rocker members , wherein the rocker members run transversely to the longitudinal direction of the plate - link chain . contact surfaces are formed on the rocker members and on the link plates , along which contact surfaces the rocker members and link plates are in contact with each other to transmit force . the respective contact surfaces are each defined by different adjacent curved regions of different radii of curvature that are selected to minimize stress spikes on the link plate contact surfaces , and particular size relationships between the link plates and the rocker members are identified .