Premium ABEC-5 Bearing 4x10x4 Ceramic Stainless Steel Shielded Bearing

4 x 10 x 4 Stainless Steel Premium ABEC-5 Ball Bearing with Si3N4 Ceramic Balls (Silicon Nitride) 4 x 10 x 4 Stainless Steel Premium ABEC-5 Ball Bearing with Si3N4 Ceramic Balls (Silicon Nitride), Made of stainless steel, each Comes with double metal shields (ZZ) to keep out dust and dirt, Ceramic Balls are the highest standard of balls that can make your bearings live at least 5 times more than any other bearings with Premium ABEC-5 quality. 4 x 10 x 4 Ball Bearing Deep Groove Ball Bearing Lubrication:(Dry) Quality: Premium ABEC-5 Shield Double Metal Shields for dust protection (ZZ) Material: Stainless Steel Balls: Si3N4 Ceramic Balls (Silicon Nitride) Dimensions: 4mm x 10mm x 4mm/Metric ID (inner diameter)/Bore: 4mm OD (outer diameter): 10mm Width: 4mm Size: 4 x 10 x 4 mm Quantity: 1 Bearing VXB Category: Hybrid ceramic bearings💡 What Does ABEC-5 Mean? ABEC-5 is a precision rating from the Annular Bearing Engineers’ Committee (ABEC), indicating that the bearing is manufactured