Inner dimension 55 mmOuter dimension 90 mmWidth 18 mmWeight 0,375 kgEAN 4012801616379 Material of rolling elements Si3N4, silicon nitride (ceramics) Seal None, open bearing Version High-speed bearing Current insulation Insulating ceramic balls Lubrication Preserved Ball rows Single row bearing Cage Polyamide cage Contact angle 15 degree Preload Light preload Tolerance class Dimensional accuracy P4 or ABEC 7, running accuracy P2 or AB Temperature range -30 to +100 °C Arrangement Single universal bearing Lubrication hole Without lubrication groove Material Standard bearing steel |