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Ceramic Balls are the highest standard of balls that can make your bearings live at least 5 times more than any other bearings
SMK30W Square Double wide Linear Slide Bush
Dynamic load rating: 491 LBS
VXB004075BTPR
30-Pack Full Ceramic 639 ZrO2 Miniature Ball Bearings 9x30x10mm Ball Diameter - 1.5mm Ceramic Balls are the highest639 Full Ceramic Bearing 9x30x10 Miniature Bearings Pack of 30 Wholesale 639 Full Ceramic Ball Bearing, measures an inner diameter of 9mm, outer diameter is 30mm and the width is 10mm. 639 Ball Bearing Type: Full Ceramic Ball Bearing Brand: VXB Cage Material: PTFE (Polytetrafluoroethylene) Balls: Made from Zirconia Ceramic (ZrO) Races Material: Zirconia (ZrO) Ceramic Dimensions: 9mmx30mmx10mm Inner Diameter: 9mm Outer Diameter: 30mm Width: 10mm