GB/T 40729-2021 specifies the test methods for determining the fatigue life of precision gear transmission devices. This standard details the complete procedure for measuring the number of stress cycles a gear device can withstand before failure (such as pitting or tooth breakage) occurs under laboratory conditions by applying specified cyclic loads or torques. It provides a unified testing basis for evaluating the durability of gear products. The tests are typically conducted on specialized gear fatigue testing machines, which are capable of precisely controlling and applying dynamic loads and are equipped with integrated sensors to monitor key parameters such as torque, rotational speed, and vibration during the testing process.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | J17 | ICS | 21.200 |
| Release Date | 2021-10-11 00:00:00 | Implementation Date | 2022-05-01 00:00:00 |