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See Chinese contents: GB/T 14230-2021 GB/T 14230-2021: Test method of tooth bending strength for gear load capacity
This document specifies the principle, purpose, type, method, equipment, failure criteria, procedure, data processing, test report of the bending fatigue strength test of the tooth root of involute cylindrical gears. This document is applicable to the basic data required for the design of the bending fatigue bearing capacity of the tooth root of involute cylindrical gears, which are made of steel or cast iron; it is also applicable to the comparative analysis of the bending fatigue performance of gears under conditions of different materials, different processes, different shaping methods, etc. Similar tests of gears made of other materials or non-involute gears can make reference to this standard.
