Special Shape Gear Structure

Special shape gear is the most important part for transmission mechanism, which belongs to large complex powder metallurgy structural part and net weight can reach 1320g. Because of large size and complicated shape, it deformed greatly after pressing and sintering, and deformation degree in each direction is not uniform. Especially for vehicle transmission mechanism in two special-shape holes,  and the symmetry for 2-10H9 and center hole is less than 0105mm. These dimensions affect assembly precision and noise from transmission mechanism directly.

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