Inner dimension 50 mmOuter dimension 80 mmWidth 16 mmWeight 0,25 kgCage Hard tissue cage Seal None, open bearing Lubrication hole Without lubrication groove Contact angle 21 degree Arrangement Single universal bearing Material Standard bearing steel Lubrication Preserved Tolerance class inner ring More accurate than P4 or ABEC 7 Tolerance class outer ring More accurate than P4 or ABEC 7 Temperature range -40 to +110 °C Ball rows Single row bearing Preload Light preload Material of rolling elements Standard bearing steel |