●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:7 pcs ●Dimension of balls:3.175mm(1/8) ●Basic dynamic load rating:2.336 k N ●Basic static load rating:0.896 k N