a rear axle beam for pivotally supporting a body frame of an industrial vehicle , including a boss - engaging areas formed on each end of the axle beam , and at least a pair of bosses , is provided . each boss includes an axle - engaging area and is fixed to a respective end of the axle beam such that each axle - engaging area engages with a corresponding one of the boss - engaging areas . the novel axle beam reduces the force applied to weld beads between the bosses and the rear axle body of industrial vehicles .