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Gear Rack Failure Analysis
Apr 18, 2018

First, the breakage of the teeth, which is due to the fact that the gear and the rack mesh with each other, because it is subjected to excessive force, the tooth surface naturally breaks, and generally this type of feature occurs at the root of the tooth. Some racks made of brittle materials such as hardened steel or cast iron are prone to broken teeth.

Second; tooth surface wear. The wear of the tooth flanks is caused by external influences. Generally, this kind of thing is not done well in the use of racks and gears in practical applications, such as hard particles, dust, etc. It constitutes destruction, wear and tear.

The third tooth surface pitting it; the fine fatigue cracks produced on the surface of the tooth surface, and the pits formed by the metal particles after the cracks are dispersed.