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Program: The Installation of Bevel Gears


Matched Teeth

During manufacturing, once the optimum tooth contact is obtained running the parts together, the mating teeth in engagement are marked for identification. Often, this is the tightest point of mesh where the normal backlash should be measured. These are considered to be the Matched Teeth.

These marks usually consist of x’s or dots on two adjacent teeth on one gear and the mating tooth of the other gear. When assembling the gearset, it is essential to position the single marked tooth in the space between the two adjacent marked teeth.

Backlash

Another critical parameter for a bevel gearset to perform properly is Backlash.  Backlash in bevel gears is defined as outer normal backlash, or transverse backlash at the tightest point of mesh. Backlash can be larger at other points of the mesh but not lighter.

During manufacturing, once the optimum tooth contact is obtained running the parts together, the mating teeth in engagement are marked for identification. Often, this is the tightest point of mesh where the normal backlash should be measured. These are considered to be the Matched Teeth.

These marks usually consist of x’s or dots on two adjacent teeth on one gear and the mating tooth of the other gear. When assembling the gearset, it is essential to position the single marked tooth in the space between the two adjacent marked teeth.