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

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

Ball: AISI 52100 bearing Steel, Heat treated, HRC56 min; Precision ground polished hard chromium plated Body: Steel alloy, Heat treated, Zinc plated, Chromate treated Race: Steel alloy, Heat treated, Zinc plated, Chromate treated Sliding contact surfaces: Steel/PTFE composite

Ball: AISI 52100 bearing Steel, Heat treated, HRC56 min; Precision ground polished hard chromium plated Body: Steel alloy, Heat treated, Zinc plated, Chromate treated Race: Steel alloy, Heat treated, Zinc plated, Chromate treated Sliding contact surfaces: Steel/PTFE composite

Ball: AISI 52100 bearing Steel, Heat treated, HRC56 min; Precision ground polished hard chromium plated Body: Steel alloy, Heat treated, Zinc plated, Chromate treated Race: Steel alloy, Heat treated, Zinc plated, Chromate treated Sliding contact surfaces: Steel/Steel

Ball: AISI 52100 bearing Steel, Heat treated, HRC56 min; Precision ground polished hard chromium plated Body: Steel alloy, Heat treated, Zinc plated, Chromate treated Race: Steel alloy, Heat treated, Zinc plated, Chromate treated Sliding contact surfaces: Steel/Steel