Home / Standards / GB/T 6391 GB/T 6391 Active Rolling bearings - Dynamic load ratings and rating life 滚动轴承 额定动载荷和额定寿命 Standard Type GBT ICS 21.100.20 CCS J11 Status 现行 Issue Date 2011-01-14 Implementation 2011-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会