Gear wheels have a standardised geometry. Their measurement is carried out according to DIN 3962.
Very small modules (approx. 0.03) can occur with plastic gears in particular. Profile form deviation, flank line deviation and the pitch are measured. Depending on the application of the gears, the tolerances range from a few µm to approx. 1/10 mm. The measuring time plays a subordinate role. In contrast to metal gears, all teeth of plastic gears must be tested, as the teeth are not interdependent due to the process.
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- Shafts and axles
- Workpieces with micro-features
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- Tools with geometrically defined cutting edges
- Tools with geometrically undefined cutting edges
- Gear wheels
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