Steering asm aslo is known as power steering asm or steering machine, which acts as a crucial parts in automobile steering system. The function of it is to immensely enhance the power from steering plate to steering structure and change the direction of this force.
The cost of mechanical steering system is the lowest. Since without supporting power to improve the comfortability in driving, mechanical steering system is seldom used in modern automobile; while hydraulic steering requires engine to provide the force, therefore, hydraulic steering is the main spare parts for common cars and business auto equipment;electric power steering system can modulate the speed with weight, so basically it doesen't guzzle any oil; as for electric-hydraulic steering asm, which is consisted with the strength and advantage both from the electric and hydraulic asm, achieved saving oil and maintaining the smoothness in driving at the same time, is most favorite by top class vehicle.