Established in 1996, Shanghai Keqing Machinery Device Co., Ltd. has been engaged in ball bearings for years. With fifteen years of hard work, we have become one of the largest precision bearing suppliers in Shanghai. Our main products: Deep groove ball bearing,tapered roller bearing,spherical roller bearing, angular contact ball bearing, pillow block ball bearing as well as rolling mill bearing that are mainly applied in the industries of mining, metallurgy, railway, paper making, food processing, petrochemical, electricity, machine tool, textile, aviation and space industry, automobile &...