... 2.Retainer:brass,steel cage 3.Reliable quality Large spherical roller bearing,please contact IXIN for details ... steel, quench-hardness HRC61---65.Available material for cages is stamping steel,brass,reinforced Nylon.CA It ... steel, quench-hardness HRC61---65. Available material for cages is stamping steel,brass,reinforced Nylon. CAIt's ... holes in the outer ring. Large type spherical roller bearings