Ball: Ball: AISI 52100 bearing Steel, heat treated, HRC56 min; Precision ground, polished hard chromium plated
Body: Carbon steel, Zinc plated
, heat treated, HRC56 min; Precision ground, polished hard chromium plated
Body: Chromoly steel heat treated, Zinc plated;
Race: Nylon polymer with PTFE additive
Sliding contact surfaces: Steel/Nylon