Cixi Yongnuo Bearing Co., Ltd. is committed to developing various precision stainless steel deep groove ball bearings with inner diameters ranging from 2mm to 40mm. Pursuing excellence, Cixi Yongnuo has never slackened in the field of stainless steel bearings for more than 10 years. With highly professional technology research and development capabilities, specialized research and development, and production of high-grade and fully customized stainless steel deep groove bearings, Cixi Yongnuo is the foundation of its enterprise and deeply involved in it; Yongnuo is a professional stainless steel bearing manufacturing enterprise that integrates customized development, production management, and pre - and post sales services. In the micro, small, and medium-sized series of 440C series bearings, 440 series bearings, 420 series bearings, 304 series bearings, 316 series bearings, as well as various process technologies with high hardness, wear resistance, and corrosion resistance, the production and quality control processes are particularly outstanding. All product grades produced by the company can be tested to V2, V3, and V4 levels through BVT vibration equipment. High end testing equipment is used to control the product quality in all production processes, such as Japanese Sanfeng roughness profilometer, Japanese Sanfeng roundness tester, hardness tester, crushing load tester, aging tester, and other hardware support to ensure high-quality and high-grade products.