Full Ceramic Bearing 4x7x2 ZrO2 Zirconium oxideFull Ceramic Ball Bearing Zirconium oxide 4 x 7 x 2 mm Full Ceramic Ball Bearing, measures an inner diameter of 4mm, outer diameter is 7mm and the width is 2mm, This commonly used in industrial, commercial, and mechanical systems. 4 x 7 x 2 Ball Bearing Full Ceramic Ball Bearing Races Material: Zirconia (ZrO) Ceramic Balls: Made from Zirconia Ceramic (ZrO) Cage Material: PTFE (Polytetrafluoroethylene) Dimensions: 4mm x 7mm x 2mm Metric ID (inner
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