●Races:Cr Mo ●Balls:Cr Mo (HRC 61-66) ●Retainer:Steel ●Sealing:Rubber 2RS (light contact) ●Grease: Multemp SRL (Kyodo Yushi) ●Tolerance:ABEC-3 ●Quantity of balls:12 pcs ●Dimension of balls:4.763mm (3/16) ●Basic dynamic load rating:6.670 k N ●Basic static load rating:4.180 k N