we, Yuyao Bote Bearing is a professional bearing manufacturer. As a qulified bearing supplier we provide high quality standard and special bearings with our over 10 years bearings manufacturer experiences. We provide all series of EMQ level bearings, the best grade is Z4V3. Provide the best quality products with the best services have always been our pursuit. Pls contact with Mr.Wang Jianhua We can provide 608 type ball bearings for skate shoes and motors. The skate bearings with ceramic balls.The quality based on ABEC-3, ABEC-5, Z4V3 can meet the air control demands. Any of your enquiry or question, please contact us directly. Sincerel