Needle roller bearing outer ring is thin steel precision stamping, structure small space, and has a large load capacity. For mounting space is limited and should not be used as housing bore raceway occasions. And pressed into the bearing hole without further axial positioning. Deep groove ball bearings are bearing the most common type. The basic model consists of a deep groove ball bearing outer ring, an inner ring, a ball and a group holding structure into. Deep groove ball bearing type has two kinds of single and double row deep groove ball structure also points sealed and open two structures, open means without bearing seal structure, Sealed deep groove ball into the dust seal and oil seal. Dust closures material is steel stamping, just play simple to prevent dust from entering the bearing raceways. Anti-oil type of contact seals, which can effectively prevent the grease within the bearing spill. Ma Bearing Co., Ltd. is located in Luoyang Luoyang of nine dynasties, is a production and sales of large, extra large, import substitution and non-standard special structure bearing joint-stock enterprises. My company has strong technical force, engineers and technicians accounted for 18% of the number of enterprises, skilled workers have been several rigorous training and technical level assessment, strict work style, technical excellence. Production equipment and testing instruments Ryoma Bearing Co., fully able to meet all types, size, precision grade bearings and special processing requirements, production process according to the enterprise internal control standards stricter than national standards and seized the whole of the product integrated multi-project test manufactured products, the factory can guarantee the quality of each bearing products meet or exceed national standards. Our company regards quality as life, customer is God, in order to meet customer expectations, the striving for national oversize bearing industry leading companies as their goals and rewards caring for customers. Our range of product specifications for the internal diameter of Φ200 ~ Φ4500mm, widely used in machine tools, petrochemical, mining, metallurgical equipment, power generation equipment, heavy machinery, building materials, construction machinery, oil rigs, steel ball processing equipment, defense industry and technology and other cutting-edge equipment product sales covered more than 20 provinces and cities, with domestic customers to establish a good economic and trade relations. Our company has obtained GB/T19001-2000idtISO9001: 2000 "quality certification system *" and bearing export ISO9001: 2000 "Quality System Registration *", bearing products are exported to America, Europe, Australia and Southeast Asian countries. Ma Luoyang Bearing Co., Ltd. Contact: Zhuxing Li