JB/T 5664-2007 in English

本标准规定了圆周速度v≤20m/s的重载(用于传递动力)齿轮的磨损、点蚀、剥落、胶合、塑变、折断与裂纹的失效判据。本标准主要用于判断经运转并已出现损伤的重载齿轮是否达到失效的程度。本标准不适用于可靠度、振动或噪声有特殊要求的重载齿轮的失效判据，也不适用于重载齿轮制造和台架试验合格与否的判据。

Scope

This standard specifies the failure criteria for wear, pitting, spalling, gluing, plastic deformation, fracture and cracking of heavy-duty gears (used to transmit power) with a circumferential speed υ≤20m/s. This standard is mainly used to determine whether heavy-duty gears that have been operated and damaged have reached the level of failure. This standard does not apply to the failure criteria of heavy-duty gears that have special requirements for reliability, vibration or noise, nor does it apply to the criteria for passing the manufacturing and bench testing of heavy-duty gears.