As one of the most professional bearing suppliers in China, WD Bearings are specialized in a widest range of bearing & customized manufacturing, like Automotive,Forklift, Electrical motor bearing, Conveyor bearings, High speed linear motion bearing & bearing components, RS seals, Rings, Balls & Rollers, and all kind of industrial components Etc. WD Bearings only sell quality bearing & components, because we believe:"Quality Create Value!" ISO9001 & ISO14001 certified. High Speed Linear Motion Double Row Ball Bearings with shaft or without shaft.with Ugroove or V groove