Ball BearingsWhy Choose This:★(I.D.=8mm, O.D.=30mm, Thickness=8.5mm)★ABEC Tolerance 1 (P0), Z2 Noise Level for most general use★Chromium Steel long-life bearings, smooth and low noise★bearings are shielded on both sides to keep lubricant in★Suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on.
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