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ZC Hobbing Cutter: The Efficient Choice for Precision Machining of Small and Medium Module Gears
Classification： Blog
Release time：2025-12-04
ZC Hobbing Cutter: The Efficient Choice for Precision Machining of Small and Medium Module Gears
ZC hob cutters, as critical tools in gear manufacturing, are specifically designed for machining small-to-medium module tooth profiles with a module range of 1-8mm and hardness of HRC25-45. Featuring an integral structure and ZC nano-ceramic coating technology, they serve as core tools for the efficient production of gears in automotive, home appliance, and small machinery applications. Constructed from premium high-speed steel substrate and coated with ZC nano-ceramic, they combine excellent rigidity with superior wear resistance, effectively minimising cutting wear.
During machining, the ZC hob employs a combined motion of spindle rotation and axial feed to precisely replicate the tooth profile onto the workpiece surface. This tool maintains tooth profile deviations ≤0.02mm (IT7 precision grade) and achieves a tooth surface roughness Ra ≤3.2μm. Suitable for batch processing of small-to-medium module gears, it delivers over 25% greater efficiency than conventional high-speed steel hobs, rapidly meeting the demands of multi-variety, small-batch production.
Compared to ZK hobs, ZC hobs offer significant cost advantages: overall procurement costs are reduced by 20%, and they provide greater flexibility when machining small-to-medium module gears. Cutting noise levels are reduced to below 85dB, improving the workshop environment. Maintenance is straightforward, with no need for frequent blade replacement.
ZC hobs are extensively employed in the machining of automotive transmission gears, home appliance motor gears, and small machine tool gears. For instance, in the production of helical gears for manual automotive transmissions—specifically those with a module of 5mm and a hardness of HRC35—ZC hobs enable efficient batch production while achieving precision that meets industry standards.
Daily maintenance precautions: After machining, remove swarf using a soft-bristled brush to prevent coating scratches; store in a dry, well-ventilated location and apply anti-rust oil to prevent corrosion; regularly inspect coating wear, replacing tools promptly if wear exceeds 0.15mm.
In the future, ZC hob cutters will further optimise coating technology to enhance heat resistance and chipping resistance, while developing semi-clamping structures that balance cost and flexibility. This will better accommodate the diverse requirements of small-to-medium module gear machining.
keyword： ZC Hobbing Cutter
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