Rolling carbide ball new standard to be implemented
According to the PRC Ministry of Industry and Information Technology Bulletin (Engineering  No. 82), the new standard carbide ball bearing (JB/T9145-2010) coming on July 1, 2010 formally implemented.
The standard is based on the original standard JB/T9145-1999 be revised, the new standard specifies the size of carbide ball, technical requirements, measuring and test methods, inspection rules, marks, rust-proof packaging and storage. Carbide ball for goods manufacture, inspection and acceptance.