Suspension system for a pendular axle

A thrust arm (24) extends in longitudinal direction between axle body (22) and tractor frame (18). A scissors linkage (32) extends vertically between axle body and frame while coupled to axle body through a pivot bearing allowing oscillation of axle body about a longitudinal axis. A spring couples the axle body to the frame. Oscillation stops (80) on the axle body engage with oscillation stops on the linkage.