Rack Milling cutter material HSS M2 TIALCRN black coating
The Rack Milling Cutter material HSS M2 TiAlCrN black coating is a precision tool made for cutting accurate gear racks in linear motion and transmission systems. Crafted from high-speed steel (HSS M2), it offers strong cutting ability and stable performance. The TiAlCrN black coating improves wear resistance and surface quality, ensuring smooth and accurate tooth profiles. Ideal for gear hobbing and rack milling machines, this cutter is widely used in CNC machines, automation systems, and robotic drives.
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Industrial Rack Milling Cutter: Materials and Applications
Rack milling cutter is precision cutting tools specially designed for machining gear racks used in linear motion and transmission systems. These cutters are typically made from high-speed steel (HSS M2, M35, M42) or carbide, ensuring excellent hardness, wear resistance, and long tool life.
They are used on gear hobbing or rack milling machines to generate accurate involute or straight-tooth profiles on racks that mesh with spur or helical gears.
Technical Specifications:
| Parameter | Specification | Description / Notes |
| Product Name | m3 a14.5°135×32 TIALCRN black coating | Non standard |
| Module (m) | 3 | Defines gear tooth size; for large module gears |
| Tooth pitch | 8mm | |
| Material | HSS M35 HSS-E (W6Mo5Cr4V2Co5)/SKH55/DIN1.3243/HS2-9-1-8 | High-Speed Steel for excellent hardness & wear resistance |
| Pressure Angle (PA) | 14.5 | Standard often 20° |
| Finish / Coating | Black Oxide | Protects against corrosion, reduces friction & glare |
| Outer Diameter (OD) | 135 | Depends on module and cutting design |
| Bore Diameter | 32 | Fits standard hob arbors |
| Profile Standard | DIN 3972 / ISO 53 | Standard involute profile with 20° pressure angle |
| Application | Gear Rack milling | |
| Hardness (after heat treatment) | 62~66 HRC after coating 68~70 HRC | Ensures long tool life and cutting edge stability |
| Surface Treatment | Steam Oxidized / Blackened | Improves chip evacuation and oxidation resistance |
| Coating Options (optional) | TiN, TiAlN, AlCrN | For extended tool life and high-speed applications |
| Country of Manufacture | China | Common production origins |
| Typical Industries | Rack and pinion drives, CNC machine tools, automation equipment, robot linear drives, industrial transmission systems | Suitable for processing carbon steel, alloy steel, and cast iron materials. |
Key Features:
- Made from HSS M2 for toughness and wear resistance.
- 14.5° pressure angle — the non-standard for gear rack.
- Black oxide coating for corrosion protection and improved tool life.
- Used on equipment such as rack milling machines and gear hobbing machines to process involute or straight gear racks.
Ordering Information:
Please specify when ordering:
- Module/DP/CP (e.g., M12)
- Pressure Angle (e.g., 20°, )
- Coating (TIN/TIAIN/ALCRONA/ALTENSA)
- Out diameter, Bore diameter
- Number of Teeth
- gear rack Material: M2/M35/M42/ASP2052/S390/MC90/P6M5/Р6М5К5/Р10К5Ф5
- Carbide
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