Coated Shaving Module Gear Cutters Tool M0.8 - M14 66mm Thickness

Coated Gear Shaving Cutter

Common normal length
The external gear is the common normal distance measured between the two outer tooth surfaces of adjacent teeth; the internal gear is the common normal distance measured between the two outer tooth surfaces of several adjacent tooth slots, which is called the common normal length. For involute spur gears, the common normal length is calculated in the end plane, and the calculation formula is: Wt=mtcosat[(k-0.5)x+zinvat]+2mtxtsinat (x should have its own symbol, k is the number of cross teeth). The involute helical tooth (or herringbone tooth) cylindrical gear is measured in the normal plane, and its value is: Wn=Wtcosβb. The length of the common normal line is an important indicator for checking the depth of cutting teeth and determining the level of accuracy.
The length of the common normal can be directly checked from the relevant table.

Our Product Series include cemented carbide turning & milling cutting tools with standard and non-standard; various kinds of wear-resisting, anti-crosion precision mould and structural parts; semifinishing and precision machining of cermet and non-cermet cutting tools.

In recent years, with decades of accumulated experience and knowledge and through unremitting efforts, we’ve developed high quality Gear Cutter Series, which including: Gear Hobs series, Shaper Cutters series, Shaving Cutter series etc.

We locate in Zhuzhou city, the land of cemented carbide in China. The company has precision production equipment from key raw materials and mixtures preparation, precision forming, atmosphere and pressure control sintering, grinding and coating, and has precision measuring instruments for international quality management standard. That is why the quality of AoHua gear cutter has even exceeded that of the original world-class brand.

AoHua Tools team will serve gear cutting tools with best quality, competitive price with best delivery for our valuable customers. We look forward to your continued interest in our gear cutting tools and wish all the best to you and your family.

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