Inner dimension 50 mmOuter dimension 80 mmWidth 32 mmWeight 0,5 kgLubrication hole Without lubrication groove Cage Hard tissue cage Seal None, open bearing Arrangement Single universal bearing Contact angle 21 degree Lubrication Preserved Ball rows Double row bearing Preload Light preload Material Standard bearing steel Temperature range -40 to +110 °C Tolerance class inner ring More accurate than P4 or ABEC 7 Tolerance class outer ring More accurate than P5 or ABEC 5 Material of rolling elements Standard bearing steel |