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1965-ZWZ builds NXZ
1966- General factory addressing in Da Shuigou, Pingluo County, Ningxia province
1969- Formally put into production.
1977-Ranked as special big size bearing manufactoryUndertake annual oil rig supporting bearing production tasks
1980-Obtain railway truck bearing production qualification.
1982-Combined with Yinchuan Bearing Factory to Xibei Bearing General FactoryWas Listed the key technology improvement enterprise as the last three years of “Six-Five” and “Seven-Five”.
1989-Joint development F-series mud pump bearing with BOMCODevelop key new product of E5729/761.4215SU for Ansteel tandem mill.     Developed axle bearing for “The North-Benze” heavy truck
1990-Sucessess in the bench test with Lanzhou petroleum machinery factory and lanzhou petroleum machinery research institute to Swivels 19954.
1992- Adjust relocation of Xibei Bearing Factory over ten years in Yinchuan.
1994-Railway truck bearing 197726 technological upgrading projects completed, an area of 11000 square meters, 200000 sets of production capacity.Joint develop heavy truck bearing with Catic for Belarus BLAZ.
1995- Xibei Bearing Group Co., Ltd. was formally established, completed by the transformation of the factory system to a company-based system.
1996-“Xibei Bearing” listed in shenzhen stock exchange as the first listed company in China bearing industry
1998-Obtain to repair railway truck bearing qualification.
1999-Thrust tapered roller bearing 91754Q (19954EQ) was named as national key new product
2000-Tapered Roller Bearing 317/710X2 (10079/710) was named as national key new product
2001-577796S rolling mill bearing mass production and exported to overseasThe developed cylindrical roller bearing NUP464777Q4 / C9YA4 was named as national key new product.
2003-Develop P-series mud pump bearing for LanShi national oil company.
2004-Developed four row taper roller bearing 477752S has been appraised as the national key new products.Develop elevator and radial gate bearings for the Yangtze Three Gorge project.
2005- Developed BNT41104152 / HC twelve mill roll bearing was named national key new products.
2006- Developed TSW-series fracturing pump bearing mass production and exported to the United States.
2007- Developed series of rolling mill bearing for India's state-owned steel mills and straight export to.
2008- Joint research and development of wind power supporting bearings with Ning Xia Yin XingEnergy Co.,Ltd.
2010-Pumping unit bearing detection of recognition by American customer.
2011-Baota Petrochemical becomes the first shareholder of Xibei Bearing Co., Ltd.
2014-Develop 500 tons of ships lift bearing.
2015- The Xibei Bearing Co., Ltd. renamed Baota industrial Co., Ltd.

Address: No.630, Beijing West Road, Xixia District, Yinchuan City, Ningxia
Hotline:0086-951-2024710 0086-951-2039233
Email:nxzjck@gmail.com nxzjck@163.com