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angular contact ball bearings{718 719 70 72} The various standard and non-standard precision machincal tool bearings are widely used for various high-speed precision machine tools and numerical control machine tools,which mainly include precision ball screw bearings and bearing units etc. Brief OutlineTenet: To lead the science and technology development of bearing industry and to improve the world’s equipment level. Spirit: To keep continuous improvement, to pursue brilliance Core values:Integrity, rigor, innovation, mutual benefit Luoyang Bearing Science & Technology Co., Ltd. is a high-tech enterprise, which focuses on the research and development of “high-tech, precise, cutting-edge, specialized and special” bearing products, which are applied to the mainframes of national economic construction in various fields and national defense construction. It was listed at Shenzhen Stock Exchange with stock code 002046 in 2005. The company has a strong strength of manufacturing high-precision and high-reliability bearings and relevant parts. The “high-tech, precise, cutting-edge, specialized and special” bearing products have been widely applied to aviation, spaceflight, navigation, machine tool, wind turbine generator, metallurgy, petroleum, chemical, medical treatment, rail transport, automobile, textile, and other fields. As a leading enterprise in aerospace bearing industry of China, the company has successfully accomplished the milestone tasks of bearing assemblies for “Dong fang hong” series man-made satellite, manned spacecraft series from “Shenzhou 1” to “Shenzhou 7” and “Chang’E” lunar exploration program, which are commended by relative administrative departments for several times. Main business: the research, development, manufacture and sales of precision bearings, special bearings, high-frequency electric spindles for machine tool, special technical equipments for bearing, testing instruments and special materials of bearing. Science and technology institutions: China National Accreditation Laboratory for BearingState Key Laboratory for Bearings of Earth Pressure Balance ShieldState Quality Supervision and Testing Center for BearingNational Technical Committee for Rolling Bearing StandardizationISO/TC4 China SecretariatNational Patent Exchange WorkstationThe Technical Committee of China Bearing Industry AssociationThe Research Center for High-speed Precision Bearing Engineering in Machinery IndustryHenan Technology Research Center for Machine Tool Spindle EngineeringProvincial Technology CenterPost-doctoral Scientific Research WorkstationThe Bearing Industry Branch of Machinery Industry Professional Skill Appraisal Center