Inner dimension 30 mmOuter dimension 55 mmWidth 26 mmWeight 0,22 kgCage Hard tissue cage Seal None, open bearing Lubrication hole Without lubrication groove Contact angle 21 degree Arrangement Single universal bearing Lubrication Preserved Material Standard bearing steel Ball rows Double row bearing 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 Preload Light preload Material of rolling elements Standard bearing steel |