... of friction 3 High quality, goog service Deep Groove Ball Bearings Special properties1. High accuracy2. Low noise3. Low weight4. Can be ... needs5. Can provide small & miniature standard and non-standard ball bearings. ApplicationWidely used in home appliances, electric tools, fitness equipment, motors ... , RS, 2RS,RZ, 2RZ.N,NZ.The grades of our products are P0,P6,P5,P4.The Vibrating grades are divided ...