Power steering of composition

Power steering gear box of  Major parts 

( Sector shaft  , nut with Recirculating valve And worm )

 as composition  Nearby   mechanical steering gearbox of kind power steering gearbox Of Housing in ( body ) cross shaft  

above  On the sector shaft teeth 

 Piston teeth stay tuch 

  Sector and piston, in  anywhere  Does not stay  clearence ply 

 And not comes clearence ply     

        This featur  stays  

inside the piston have one nut 

 Nut of compositino ,due to doing