Ningbo Yinzhou Qiuqiu Balls Co., Ltd. [China]

various materials of bearing balls

American trademark AISI440, Chinese trademark 9cr18, Hardness to reach 55~58 HRC, Specifications of diameter 2.0mm~40mm, which is widely used in high-precision bearings, bearing-holders, sealing of precision products and refrigeration system, valves, instruments & meters, military fuse products, aero-space and aeronautical lines and other high precision mechanical parts.

Nonstandard dimensions customized are acceptable.

bearing ball