Home / Standards / GB/T 39271.1-2020 GB/T 39271.1-2020 Active Rolling bearings—Load ratings for hybrid bearings with rolling elements made of ceramic—Part 1: Dynamic load ratings 滚动轴承 陶瓷滚动体混合轴承的额定载荷 第1部分:额定动载荷 Standard Type GBT ICS 21.100.20 CCS J11 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A