●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:10 pcs ●Dimension of balls:3.969mm(5/32) ●Basic dynamic load rating:4.650 k N ●Basic static load rating:2.260 k N