Four-row cylindrical roller bearings are mainly used on the roll necks of hot or cold rolling mills used for forming blooms

 Four-Row Cylindrical Roller Bearings

Four-row cylindrical roller bearings are mainly used on the roll necks of hot or cold rolling mills used for forming blooms, plates, and other stock. There are many variations of the bearings: the inner and outer rings may or may not have ribs, the inner ring may be in one or two pieces, the bore may be cylindrical or tapered, and other variations. All four-row cylindrical roller bearings can support only radial loads; therefore, they must be used in combination with thrust bearings such as angular contact ball bearings or tapered roller bearings.

Brief Outline

Tenet: 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 Bearing

State Key Laboratory for Bearings of Earth Pressure Balance Shield

State Quality Supervision and Testing Center for Bearing

National Technical Committee for Rolling Bearing Standardization

ISO/TC4 China Secretariat

National Patent Exchange Workstation

The Technical Committee of China Bearing Industry Association

The Research Center for High-speed Precision Bearing Engineering in Machinery Industry

Henan Technology Research Center for Machine Tool Spindle Engineering

Provincial Technology Center

Post-doctoral Scientific Research Workstation

The Bearing Industry Branch of Machinery Industry Professional Skill Appraisal Center 

Four-Row Cylindrical Roller Bearings