Home / Standards / GB/T 20057 GB/T 20057 Active Rolling bearings - Single-row cylindrical roller bearings - Chamfer dimensions for loose rib and non-rib sides 滚动轴承 圆柱滚子轴承 平挡圈和套圈无挡边端倒角尺寸 Standard Type GBT ICS 21.100.20 CCS J11 Status 现行 Issue Date 2012-09-03 Implementation 2013-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会