Gear Tools

Tool precision directly determines gear quality. JIAYI SEIKO's gear hobs are engineered and precision-ground to fully comply with DIN 3968 Class AA or Class A tolerances. For shaper cutters, we manufacture to DIN 1829 Class AA specifications. This micro-level tooth profile accuracy ensures that your finished gears easily hit strict AGMA or DIN quality standards, reducing post-heat treatment grinding times and minimizing gear running noise.

Gear cutting generates intense friction and heat, especially in modern dry-hobbing setups. To prevent rapid flank wear and cratering, JIAYI SEIKO utilizes premium powder metallurgy high-speed steel substrates (PM-HSS, such as S390 or ASP2060) which offer superior red hardness and toughness. We pair these with state-of-the-art Alcrona Pro or AlCrN nanocomposite coatings. These coatings exhibit an oxidation resistance temperature of up to 1, 100°C, significantly extending tool life and enabling higher cutting speeds ( VC ) in both wet and dry machining.

The choice is a balance between cycle time and surface quality:

1. Multi-Thread Hobs (2 to 4 starts): Drastically reduce roughing cycle times (e.g., a 2-start hob cuts machining time nearly in half), making them ideal for high-volume automotive gear roughing.
2. Single-Thread Hobs: Provide a higher number of generating cuts per tooth space, resulting in superior surface finish and a lower profile error. For high-precision finishing or heavy-module gears, single-thread tools remain the gold standard.

Absolutely. Gear tooling profiles are highly specialized. Whether you need custom hobs for involute splines (DIN 5480, ANSI B92.1), parallel splines, sprocket teeth, worm gears, or complex non-standard asymmetrical tooth geometries for EV (Electric Vehicle) gearboxes, our engineering team can custom-design the precise tool profile. We use advanced gear simulation software to verify the generation process before manufacturing, guaranteeing a perfect tooth profile match. Request a Custom Gear Tooling Blueprint & Quote.