Home / Standards / GB/Z 3480.31-2025 GB/Z 3480.31-2025 Active Calculation of load capacity of spur and helical gears—Part 31: Calculation examples of micropitting load capacity 直齿轮和斜齿轮承载能力计算 第31部分:微点蚀承载能力算例 Standard Type GBZ ICS 21.200 CCS J17 Status 现行 Issue Date 2025-12-03 Implementation N/A Responsible Dept 国家标准委 Drafting Unit N/A