Our CNC Hobbing Services
Nuestro CNC Hobbing services set the standard for high-precision gear production—combining advanced Tecnología CNC with decades of expertise in the Hobbing Process. Whether you need custom Gear Types, ajustado Gear Tolerances, or scalable production for critical transmission components, we transform raw materials into gears that drive reliability. Trust our proven Precision Gear Machining capabilities to meet your industry’s strictest performance standards, on time and within budget.

What Is CNC Hobbing?
Tallado CNC is a specialized subtractive manufacturing process designed exclusively for producing gears—one of the most critical components in mechanical transmission systems. Unlike manual gear cutting (which relies on operator skill and is prone to inconsistency), it uses Tecnología CNC (Control numérico de la computadora) to automate the movement of a cutting tool called a “hob.”
En su núcleo, el Hobbing Process works by rotating both the hob (a cylindrical tool with helical cutting teeth) and the workpiece (the gear blank) in a synchronized manner. As the hob feeds into the blank, its teeth progressively cut the gear’s teeth profile—whether it’s straight, helical, or worm gears. This synchronization ensures each tooth has identical spacing, forma, and depth—key for smooth gear operation.
En breve, Gear Hobbing (powered by CNC) is the gold standard for high-volume, high-precision gear production. It eliminates human error, ensures consistency across batches, and delivers gears that fit and function seamlessly in everything from small motors to heavy industrial machinery.
Nuestras capacidades: Lo que podemos hacer por ti
We’ve invested in state-of-the-art CNC hobbing machines and trained our team to handle diverse gear manufacturing needs—from prototype development to mass production. A continuación se muestra un desglose detallado de nuestras capacidades centrales:
Categoría de capacidad | Detalle | Specifications |
CNC Hobbing Services | Production of straight, helical, worm, and spline gears; supports external and internal gear cutting | Gear diameter range: 10mm – 1200mm; Número de dientes: 5 – 200 |
Precision Gear Machining | Tight control over tooth profile accuracy, paso, and backlash | Profile tolerance: ISO 5 (AGMA 10); Pitch error: ± 0.005 mm; Backlash: 0.01mm – 0.1mm |
Machining Capacity | 24/7 production with quick hob changeovers (bajo 20 minutos) for different gear types | Arriba a 500 engranajes pequeños (≤50mm diameter) o 100 large gears (≥500mm diameter) per 8-hour shift |
Gear Types Expertise | Specialized setups for standard and custom gear designs | Straight gears, engranajes helicoidales, engranajes de gusano, splines, bevel gear blanks, planetary gears |
Custom Gear Support | In-house engineering team translates CAD models into hobbable gear designs | Accepts all major CAD formats (PASO, IGES, Dwg, Solidworks); offers design optimization for manufacturability |
Si lo necesitas 50 prototype helical gears for a new electric vehicle or 10,000 worm gears for industrial conveyors, our capabilities scale to match your timeline and quality goals.
The CNC Hobbing Process: Paso a paso
Nuestro Proceso CNC sigue a un estructurado, quality-focused workflow to ensure every gear meets your exact specifications. Each step is automated but monitored by our gear engineers to catch inconsistencies early:
- Diseño & Programación: Convert your gear’s CAD model (or technical drawing) into a CNC-compatible program. Our team optimizes the hob path, velocidad, and feed rate to minimize material waste and maximize tooth precision—critical for gear performance.
- Workpiece Preparation: Clean the gear blank (materia prima) and secure it in a CNC chuck or fixture. We pre-measure the blank’s diameter, espesor, and hardness to confirm it meets production requirements.
- Hob Setup: Select the appropriate hob (material: high-speed steel for soft metals, carbide for hard alloys) based on the gear’s material and tooth profile. The hob is mounted on the machine’s spindle and calibrated for correct alignment.
- Gear Cutting Process: La máquina CNC ejecuta el programa: the hob and gear blank rotate in synchronized motion, while the hob feeds axially into the blank. This step cuts the gear’s teeth to the exact depth and profile specified.
Desacuerdo & Inspección: Remove any sharp edges (rebabas) from the gear’s teeth using automated deburring tools. We then inspect the gear using a gear measuring machine (GMM) to verify tooth profile, paso, and backlash. If it meets standards, it moves to Gear Surface Treatment (si es necesario).
Materiales: What Works for CNC Hobbing?
Not all materials are suitable for gear manufacturing—we focus on options that balance machinability, fortaleza, resistencia al desgaste, y costo. A continuación se encuentran el Common Gear Materials we process, along with their key Propiedades del material:
Tipo de material | Ejemplos | Propiedades del material (Por que funciona) | Ideal Gear Applications |
Ferrous Metals | Acero carbono (1045), Acero aleado (4140), Acero inoxidable (304) | Alta resistencia a la tracción; buena resistencia al desgaste; compatible with hobbing tools | Cajas de cambios industriales, transmisiones automotrices, heavy machinery |
Metales no ferrosos | Aluminio (6061), Latón (C36000) | Ligero; baja fricción; easy to hob (reduces cycle time) | Small motors, Electrónica de consumo, instrumentos de precisión |
Aleaciones | Aleación de titanio (TI-6Al-4V), Aleación de níquel (Incomparar 718) | Alta resistencia; resistencia a la corrosión; strength at extreme temperatures | Motores aeroespaciales, marine propulsion systems, oil/gas pumps |
Powder Metals | Sintered Steel (FC-0208) | Rentable para producción de gran volumen; consistent density | Automotive starter gears, household appliance gears |
Nuestro Selección de material experts help you choose the best option for your gear’s end-use—weighing factors like operating temperature, capacidad de carga, y condiciones ambientales (P.EJ., humedad, químicos).
Tratamiento superficial: Enhancing Gear Performance
After hobbing, Tratamiento superficial is critical for improving a gear’s durability, resistencia al desgaste, and lifespan—especially for gears that operate under high load or in harsh environments. We offer five core Treatment Methods, tailored to your gear’s application:
Tratamiento superficial | Propósito | Process Details | Caso de uso de la industria |
Carburador & Temple | Hardens the gear’s surface (mientras mantiene el núcleo duro) to resist wear | Heat gear to 900–950°C in carbon-rich atmosphere; apagarse; temper to reduce brittleness | Engranajes de transmisión automotriz, industrial gearboxes |
Cromo duro | Agrega un duro, capa resistente a la corrosión (5–50 μm thick) | Electroplate chromium onto the gear’s surface; polish for smoothness | Gears in wet environments (P.EJ., marina, procesamiento de alimentos) |
Disparó a Peening | Increases fatigue resistance by creating compressive stress on the surface | Blast gear with small steel/ceramic shots (0.2–1.0mm) at high pressure | Aerospace gears, high-performance racing transmission gears |
Fosfante | Creates a porous, oil-retaining layer to reduce friction | Immerse gear in phosphoric acid solution; rinse and dry | Small electric motor gears, household appliance gears |
Molienda | Improves surface finish and tooth precision (for high-precision gears) | Use a cylindrical grinding wheel to refine tooth profile; achieves Ra 0.4–0.8 μm | Medical equipment gears, precision instrumentation gears |
Each treatment is tested to ensure it meets Calidad de la superficie standards—we verify hardness, espesor de revestimiento, and finish before delivering the final product.
Tolerancias: How We Control Gear Precision
Gear Tolerances are the allowable deviations from a gear’s designed dimensions (P.EJ., tooth profile, paso, backlash). Para engranajes, tight tolerances are non-negotiable—even small deviations can cause noise, vibración, or premature failure in transmission systems.
Nuestro Control de tolerancia system uses three layers of precision to meet even the strictest industry standards (ISO/AGMA):
- Pre-Machining Calibration: We calibrate our CNC hobbing machines daily using certified master gears (exactitud: ISO 3) to ensure hob alignment and synchronization are precise.
- In-Process Monitoring: Sensors on the machine measure tooth pitch and depth in real time, adjusting hob speed or feed rate if deviations occur.
- Post-Machining Inspection: Our quality team uses a gear measuring machine (GMM) to scan every gear’s tooth profile, pitch circle diameter, and backlash. We reject any gear that falls outside your specified Niveles de tolerancia.
Below are our standard Gear Tolerances for common applications:
Application | Profile Tolerance (ISO) | Pitch Error | Backlash | Aspereza de la superficie (Real academia de bellas artes) |
General Industrial | ISO 7 (AGMA 8) | ± 0.01 mm | 0.05–0.1 mm | 1.6–3.2 μm |
Automotriz | ISO 6 (AGMA 9) | ±0.007mm | 0.03–0.08mm | 0.8–1.6 μm |
Aerospace/Medical | ISO 5 (AGMA 10) | ± 0.005 mm | 0.01–0.05mm | 0.4–0.8 μm |
Advantages of CNC Hobbing: Why It’s Better Than Other Gear Cutting Methods
Compared to alternative gear cutting processes (P.EJ., gear shaping, molienda), Tallado CNC offers unique benefits that save time, Reducir los costos, and improve gear quality. Aquí están la parte superior Advantages of CNC Hobbing:
- Ventajas de precisión: CNC synchronization ensures every tooth on a gear (and every gear in a batch) has identical profile and spacing. This eliminates “tooth-to-tooth variation”—a common issue with manual methods that causes gear noise and wear. For high-precision applications (P.EJ., aeroespacial), this is non-negotiable.
- Ventajas de costos: CNC hobbing is faster than most other gear cutting processes—one machine can produce up to 500 small gears per shift. It also uses fewer tools (a single hob can cut multiple gears) and generates less waste, cutting production costs by 20–30% for high-volume runs.
- Quality Advantages: The hobbing process creates a smooth, consistent tooth surface finish (RA 0.8-3.2 μm) that requires minimal secondary finishing. This reduces lead times and ensures gears operate quietly and efficiently.
Flexibilidad: CNC programs are easy to modify—we can switch between Gear Types (P.EJ., straight to helical) in under 30 minutos (no need for new fixtures). This is perfect for small-batch projects or rapid prototyping.
Industria de aplicaciones: Where CNC Hobbing Makes a Difference
CNC Hobbing Uses span nearly every industry that relies on mechanical transmission systems—gears are the “workhorses” that transfer power from motors to moving parts. A continuación se encuentran la parte superior Sectores de la industria Servimos, con ejemplos del mundo real:
Industria | Application Fields | Specific Gears We Produce |
Automotor | Transmissions, motores, steering systems, brakes | Helical transmission gears, planetary gears, differential gears |
Aeroespacial | Jet engines, tren de aterrizaje, flight control systems | High-temperature alloy gears, worm gears for actuation systems |
Industrial | Transportadores, zapatillas, compresores, cajas de cambios | Large helical gears (≥500mm diameter), spline shafts, reduction gear sets |
Médico | Surgical robots, equipo de diagnóstico, patient lifts | Small precision gears (≤20mm diameter), low-noise gears |
Renewable Energy | Wind turbine gearboxes, solar tracking systems | Heavy-duty planetary gears, large worm gears for wind turbines |
In each sector, our hobbing services ensure gears perform under extreme conditions—from high speeds (aerospace engines) to heavy loads (turbinas eólicas).
Técnicas de fabricación: Optimizing Gear Production
To get the most from CNC hobbing, Usamos especializados Técnicas de fabricación that balance speed, precisión, y costo. Here are three key methods we employ:
- High-Speed Hobbing: Para materiales blandos (P.EJ., aluminio, acero bajo en carbono), we use carbide hobs and increase spindle speed (arriba a 4,000 Rpm). This reduces cycle time by 40% while maintaining tooth precision—ideal for high-volume consumer electronics gears.
- Dry Hobbing: For materials that don’t generate excessive heat (P.EJ., latón, powder metals), we skip cutting fluids. This reduces environmental impact, lowers disposal costs, and eliminates the need for post-machining cleaning—cutting production time by 15%.
- Profile Optimization: For high-load gears (P.EJ., cajas de cambios industriales), Usamos “coronación de dientes”—a technique that slightly modifies the tooth profile to distribute load evenly across the tooth face. This increases gear lifespan by 50% or more and reduces the risk of premature failure.
Estos Hobbing Techniques are backed by decades of gear manufacturing experience—we don’t just follow industry best practices; we help define them.
Estudios de caso: Real Success Stories
Nuestro CNC Hobbing Services have solved complex gear manufacturing challenges for clients across industries. Below are two short Estudios de caso that highlight our impact:
Estudio de caso 1: Automotive Transmission Manufacturer
A leading car maker struggled with noisy transmission gears produced via manual shaping. The gears (acero aleado 4140) had inconsistent tooth pitch (error: ± 0.02 mm), causing vibration and customer complaints. We switched them to our CNC hobbing process, delivering gears with ±0.007mm pitch error (ISO 6 tolerancia). Resultados:
- 80% reduction in transmission noise
- 90% decrease in warranty claims related to gear failure
- 25% producción más rápida (24/7 automatización)
Estudio de caso 2: Wind Turbine Gearbox Supplier
A client needed large helical gears (diámetro: 1000milímetros; material: acero aleado 4340) for wind turbine gearboxes. Their previous supplier used milling, que tomó 10 hours per gear and had high waste (15%). Our CNC hobbing process cut production time to 3 hours per gear and reduced waste to 5%. Resultados:
- 67% faster lead times
- 66% lower material costs
Gears met ISO 5 tolerancia (AGMA 10) for wind energy standards
Por qué elegirnos: Our Competitive Advantages
With so many CNC hobbing providers, ¿Por qué asociarse con nosotros?? Aquí están la parte superior Reasons to Choose our services:
- Proven Precision: Sostenemos ISO 9001 y certificaciones AS9100 (para aeroespacial) and maintain a 99.8% quality pass rate. Every gear is inspected twice—once during machining, once after surface treatment—using calibrated GMMs.
- Capacidad escalable: Nuestro 8 CNC hobbing machines (incluido 2 large-format machines for gears up to 1200mm diameter) operate 24/7. We handle batches from 1 a 100,000 gears and offer rush orders (2–3 day turnaround) for emergency needs.
- Gear Expertise: Nuestro promedio de ingenieros 15+ years of gear manufacturing experience. They don’t just run machines—they help optimize your gear design (P.EJ., tooth profile, selección de material) to improve performance and reduce costs.
- Transparent Pricing: We provide detailed, itemized quotes with no hidden fees. For long-term partnerships, Ofrecemos descuentos de volumen (arriba a 25% for annual orders over 50,000 engranaje) and price locks to protect against material cost fluctuations.
- Servicio centrado en el cliente: Every client gets a dedicated gear engineer as their point of contact—available to answer questions, Proporcionar actualizaciones de progreso, or adjust designs. We also offer free gear design reviews to catch potential manufacturability issues early.
Nuestro Fortalezas aren’t just about equipment—they’re about delivering the Customer Benefits that matter most: reliable gears, entrega a tiempo, and peace of mind.