The State Intellectual Property Office issued an announcement and decided to grant Wafangdian Guangyang Bearing Group Co., Ltd. four new product patent rights and issue the "utility model patent certificate". The four patented products are: a four-row cylindrical roller bearing for rolling mills (patent number), a four-point contact ball bearing (patent number), a double row cylindrical roller bearing for rolling mills (patent number), A cylindrical roller bearing (patent number).
Since last year, Gwangyang Bearing Group has closely focused on the needs of bearing users, aimed at the high-end of international bearing technology, strengthened the construction of technical teams, and strived to improve product innovation. In 2007, more than 600 new products were developed and produced, an increase of 29% over the previous year. In the first quarter, it designed and developed nearly 60 kinds of products. The new products developed and produced are all products with independent intellectual property rights. Recently, the four patents granted by the State Intellectual Property Office to the Gwangyang Group are only part of the patent application.
The patented four-row cylindrical roller bearing is mainly used in rolling mills, metallurgical and other industries. Through independent invention, the current domestic large-scale rolling mill bearings generally adopt comb-type cages or rivet cages, resulting in high manufacturing and procurement costs; the ferrules and rolling elements are made of GCr15SiMn material, which has short rated life and is easily damaged in actual operating conditions. The use of foreign sales cages, ferrules, rolling elements are carburized steel, the material cost is higher, not suitable for China's national conditions and other drawbacks. The beneficial effects of the bearing are: reduced cost, improved bearing life and high practicability.
A four-point contact bearing, the stamping cage is assembled once successfully, no need to punch the ball, saving manpower and reducing labor intensity.
A double row cylindrical roller bearing for a rolling mill is characterized in that a cage seat is placed between the outer ring and the inner ring, the roller is inserted into the cage seat, and the cage cover and the cage seat are connected by rivets, and the inner ring The end face is provided with a side retaining ring. The beneficial effect is that the bearing is axially and axially loaded separately, the radial load is received by the raceway, the axial load is received by the rib, and there is no eccentric load problem, so the service life is increased by more than 10 times. The bearing is mainly used in rolling mill, electromechanical and metallurgical industries.
A cylindrical roller bearing differs in that the bearing removes the cage cover, a ring groove is formed in the inner diameter of the cage cover, and a spring retaining ring is inserted, and the retainer cover is replaced by a spring retaining ring to block the roller. The utility model has the beneficial effects that the bearing eliminates the cage cover and saves the brass; the processing of the rivet hole, the manufacture of the rivet, the riveting and the demagnetization are eliminated, and the power consumption is reduced; the spring retaining ring is used instead. The cage cover retains the roller and works well. This new type of bearing is mainly used in the electromechanical, metallurgical, paper, petroleum and other industries.
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