The utility model relates to a steering bearing for a car chassis, which belongs to the technical field of automobile manufacturing. The bearing comprises an outer cage (1), a retainer assembly (2), a block washer (3), a block (4), steel balls (5) and a shaft washer (6), wherein the steel balls (5) and the retainer assembly (2) are arranged at the shaft washer (6), the block washer (3) is arranged at the steel balls (5) and the retainer assembly (2), after the parts are assembled, the assembled part is arranged in a hollow groove of the block (4), and the outer cage (1) is connected with the block (4) in interference fit. The utility model has the beneficial effect that the bearing has a dustproof function, the carrying capacity of the bearing is high, the height of the retainer beam is reduced, the elasticity of the lock ball is increased, and the efficiency of bearing assembly is improved.