Four-point contact ball bearings are separable bearings, four point contact ball and rings can bear radial load and axial load in either direction or radial and axial joint load. The axial clearance on both sides of this kind can limit the axial displacement of the bearing shaft or housing in the bearing. When paired installed back to back or face to face, should be provided in the middle of the two outer spacer ring. By grinding mill thickness of the inner and outer rings to control radial clearance (also achieve this objective through two grinding surfaces of the bearing inner ring protruding amount). And there are preloaded during installation, thereby increasing the load capacity, rigidity and precision rotating set of paired bearings. Thrust roller bearing assembly methods: Because thrust roller bearings are precision products, such as improper assembly is easy to thrust roller bearing channel damage resulting thrust roller bearing damage. Thrust roller bearings in the assembly should have a dedicated mold and can not beat when pressed into the shaft force only a small circle, the circle of force only when the pressure of the big circle. When using pneumatic or hydraulic assembly requirements, in the press-fit upper and lower mold levels to remain outside the state, if inclined thrust roller bearings can cause damage due to power channel, leaving the thrust roller bearing guide ring Luoyang Bearing Co., Ltd. Ma located in Luoyang of nine dynasties, is a production and sales of large, extra large, import substitution and non-standard bearing the special structure of 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