Inner dimension 55 mmOuter dimension 90 mmWidth 18 mmWeight 0,38 kgVersion High-speed bearing Material of rolling elements Si3N4, silicon nitride (ceramics) Cage Hard tissue cage Seal None, open bearing Lubrication hole Without lubrication groove Contact angle 15 degree Arrangement Single universal bearing Lubrication Preserved Material Standard bearing steel Current insulation Insulating ceramic balls Preload Light preload Tolerance class inner ring More accurate than P2 or ABEC 9 Tolerance class outer ring More accurate than P2 or ABEC 9 Temperature range -40 to +110 °C Ball rows Single row bearing |