[Premium Materials] The outer ring and flange are made of high-quality #55 carbon structural steel for superior hardness and strength; the inner ring is crafted from GCr15 bearing steel, which achieves uniform hardness after quenching and tempering for excellent wear resistance and fatigue strength.
[Long Life, Stable Drive] Brand-new hub assemblies and studs feature a rust-proof finish for extended service life; the triple oil seal design blocks moisture and dust while reducing noise and vibration for a smooth driving experience.
[Pro Installation for Safety] If you do not have an installation manual or professional repair experience, it is strongly recommended to have the bearing installed by a qualified mechanic to ensure optimal performance and driving safety.