[Size] - FR8-2rs ABEC1 Bearings ( I.D.=1/2", O.D.=1-1/8", Thickness=5/16"; Flange Dia: 31.1mm, Flange Thickness: 1.5mm ).[Durable] - Chrome Steel (GCr15) races offer high hardness and great wear resistance, thus extend bearings' service life.[Easy to Maintain] - Both sides are rubber-sealed, oil- and liquid-resistant. Z1 noise level for most general use. [Application] - Commonly used for glider/rocker arms, wheels of the cart, lawnmowers, printers, motors, gearboxes, reducer, textile machinery, electronic equipment, and more.[Note] - Please refer to the picture and select the right type of bearings before ordering (Sealed or Shield on BOTH or SINGLE side of the bearing).
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