N-Series Low Speed Oil-Cooling Soft Cutting Hobs
Redefine economy in soft gear manufacturing. The Nobeve N-Series combines high-toughness die-cast alloy with Oerlikon Balzers PVD coatings to deliver the perfect balance of durability and budget. Engineered to replace HSS and costly imports, it ensures DIN AA precision in oil-cooled environments, keeping your cost per part at an industry minimum.
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INTRODUCTION
Why Smart Manufacturers Are Choosing N-Series for Standard Gears?
In the competitive landscape of gear manufacturing, utilizing the “right tool for the job” is critical to protecting your margins. While high-speed dry cutting is the trend, a vast number of gears are still produced on traditional mechanical hobbing machines or run at moderate speeds where oil cooling is essential. Using top-tier, high-hardness carbide hobs on these slower, vibration-prone machines or on soft materials (≤HRC 30) is often a waste of resources. The brittle nature of premium carbide can lead to micro-chipping under unstable conditions. Nobeve understands this specific need. That’s why we developed the N-Series, specifically designed to offer a robust, forgiving solution.
Toughness-Optimized Substrate
Sourced from quality domestic suppliers, this ordinary die-cast tungsten cobalt alloy is engineered to withstand the mechanical vibrations common in older hobbing machines. It resists the chipping that often plagues harder carbide grades at lower speeds.
Premium Friction Control
Despite being our economical line, we do not compromise on surface treatment. We feature Oerlikon Balzers BALINIT® ALCRONA PRO to ensure low friction coefficients in oil, preventing the "built-up edge" (BUE) issues common when cutting sticky, soft materials.
N-SERIES SPOTLIGHT
Smart Cost-Efficiency
Delivers Nobeve’s consistent precision standards without the premium cost of high-speed technology, offering an optimal ROI for low-to-medium volume standard gear production.
Universal Speed Range
Calibrated for a versatile operating window of 60m/min - 150m/min. This allows the N-Series to run effectively on both slow traditional hobbing machines and modern high-speed CNC machines, providing flexibility for your shop
PRODUCT SPECIFICATION
Our N-Series is designed for widespread application in the automotive, agricultural, and general machinery sectors. Whether you are producing spline shafts or spur gears, these parameters ensure reliable, economical performance.
| Specifications-Overall Dimensions | Surface Treatment | ||
|---|---|---|---|
| External Diameter | Internal Diamete | Length | |
| Unit(mm) | Unit(mm) | Unit(mm) | |
| ≤φ25 | φ8、φ10 | ≤L30 | Cleaning-Sandblasting Edge Passivation PVD Coating |
| 25 | φ8、φ10、φ13 | ≤L30 | |
| φ28-φ32 | φ10、φ13 | ≤L30 | |
- Recommended Cutting Speed: 60–150 m/min
- Recommended Feed Rate: 0.3–0.8 mm/rev
- Machining Environment: Suitable for wet (oil-cooled) cutting.
- Workpiece Hardness:HRC≤30
- Accuracy Class: DIN A, DIN AA
- Customization: Custom sizes available for batch orders.
- φ32Xφ13XL25 and φ32Xφ13XL30 are the most common external dimensions.
Not the right fit for your current application? Explore other gear cutting tools from Nobeve.
WHY CHOOES OUR N-SERIES HOBS
The Smart Economic Choice
The N-Series focuses on essential performance metrics. By refining our production efficiency, we pass the savings directly to you, offering a significantly more accessible price.
Forgiving on Older Equipment
The N-Series is designed to be usable on slow traditional hobbing machines. Its tough substrate absorbs the lower-frequency vibrations of hydraulic or mechanical drives better than ultra-hard carbide, preventing catastrophic tool failure.
Quality testing equivalent to high-end products
Every N-Series hob undergoes the same Cleaning-Sandblasting and Edge Passivation process as our premium lines. We guarantee DIN A/AA precision, ensuring your gear profiles meet international standards every time.
Testimonials
Our Customers
Feedback
"We produce thousands of gears for agricultural tractors every month. The N-Series fits our older machines perfectly and costs half of what we used to pay for European brands."
"Transitioning from HSS to the Nobeve N-Series was a game changer. We run them at 120m/min on our YK3150 machines with oil."
"I was skeptical about 'ordinary alloy' at first, but for our HRC 25 spline shafts, these tools are unbeatable. The finish is smooth, and we get predictable wear patterns that allow us to regrind multiple times."
FREQUENTLY ASKED QUESTIONS
A
No. To provide the most cost-effective solution, the N-Series uses ordinary die-cast tungsten cobalt alloy, whereas the K-Series uses imported German Konrad Friedrichs solid rods. This difference allows the N-Series to be much more affordable while still offering excellent performance for soft materials (≤HRC 30).
A
No, the N-Series is strictly for Oil-Cooling machining environments. The substrate and the standard BALINIT® ALCRONA PRO coating rely on the lubricity and cooling effect of oil to maintain edge integrity. Running dry may cause thermal damage to this specific alloy grade.
A
Yes, absolutely. In fact, the N-Series is explicitly stated to be usable on slow traditional hobbing machines. Its superior toughness makes it more resistant to the vibration and rigidity issues often found in older equipment compared to harder, more brittle carbide grades.
A
I
We recommend the N-Series for materials with a hardness of ≤ HRC 30°. For harder materials (HRC 45-62), you must use our G-Series, which is specifically designed for hard cutting. Using the N-Series on hard steel will result in rapid wear.
Even though it is our economical line, the N-Series is still a carbide tool. You can expect significantly higher cutting speeds (60-150m/min) and longer tool life compared to traditional HSS hobs, which typically run at 30-50m/min.
A
Yes. While Standard sizes like φ32×φ13×L50 are standard, we support batch customization for various shapes and sizes. We can design profiles for splines, timing pulleys, and non-standard gears to DIN AA accuracy.
A
Because coating peeling is a major issue with cheap tools. Nobeve uses BALINIT® ALCRONA PRO even on the N-Series. Combined with our Cleaning-Sandblasting and Edge Passivation process, we ensure the coating adheres perfectly, protecting the substrate and extending tool life significantly.
AYes, 70% of our orders are customized. We perform Simulated Cutting Analysis before manufacturing. Based on your gear data and grinding stock (e.g., 0.15mm), we calculate the exact protuberance and chamfer angles to prevent grinding notches (undercutting) during finishing.
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