●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:8 pcs ●Dimension of balls:4.763mm(3/16) ●Basic dynamic load rating:5.100 k N ●Basic static load rating:2.390 k N