Power Steering Rack Seal usually has a nylon supporting ring, to meet the lips requirement of bearing pressure, which is usually made of HNBR. We offer the NBR and HNBR material products, customers can choose according to actual demand freedom.
Product design
a. Power Steering Rack Seal has the characteristics of the engine oil resistance and low friction during operation
b. The design of back-up ring can increase the pressure tolerance and prevent the lip from overturning