Helical Gear Rack Manufacturer

Specifications:
Precision Grade: DIN6h25
Material: C45 / 40Cr / 42CrMo
Type: Helical Rack
Treatment of Teeth: Ground
Hardening Process: Overall Quenching + Tooth Surface Induction Hardening (HRC50–55)
Sides Ground:Included
Right hand angle: 19°31'42”
Pressure Angle: 20°
Total Pitch Error: 0.036mm/1000mm

Yuchen’s high-precision ground helical gear rack is a standout innovation, engineered to meet the evolving demands of high-end motion systems. With decades of expertise in mechanical transmission, Yuchen integrates advanced machining techniques, good materials, and rigorous quality control to deliver a gear rack that redefines performance in precision applications.

Precision Machining Beyond the Ordinary
Manufactured using state-of-the-art five-axis gear grinding centers, this rack undergoes ultra-fine micro-level grinding. The gear surface roughness is reduced to Ra ≤ 0.8, with a tooth profile error strictly controlled within ±5μm. Achieving ISO Grade 6 or higher, the rack offers mirror-like surface quality, ensuring ultra-smooth, backlash-free engagement. This enables less vibration, stable operation, and consistent accuracy—an essential foundation for advanced automation systems and CNC equipment.

Advanced Materials and Heat Treatment
Only high-strength materials like SCM440 alloy steel are selected to meet demanding industrial conditions. Through a vacuum carburizing and quenching process, the gear surface forms a hardened layer of up to 2.5mm, reaching HRC50–55 in hardness. This significantly enhances wear resistance, fatigue strength, and dynamic load capacity (up to 2000N/mm²), tripling the product’s lifespan compared to conventional gear racks. Users benefit from reduced maintenance frequency and lower replacement costs over time.

Uncompromising Quality Control
Each gear rack undergoes 18 strict quality control procedures from raw material entry to final delivery. Equipped with CMMs and precision gear measurement centers, Yuchen ensures that every rack is fully inspected for dimensional accuracy and gear conformity. Products are delivered in full compliance with ISO 9001:2015 standards, guaranteeing stable, high-level performance.

Proven Reliability in Demanding Applications
In robotics, the rack’s ±20μm positioning accuracy enables robotic arms to perform precision assembly with ease. On high-performance CNC machine tools, the accumulated pitch error of just 0.036mm per 1000mm allows consistent micron-level machining. Even in harsh environments such as aerospace testing platforms, optional anti-corrosion coatings allow stable performance under extreme conditions. With its high accuracy, rigidity, and long service life, this gear rack is increasingly favored by major manufacturers and has emerged as a strong domestic alternative to imported components.

Driving the Future of Precision Motion
The success of Yuchen’s ground helical gear rack marks a pivotal moment in China’s progress toward independent innovation in precision transmission. It not only reflects Yuchen’s engineering capabilities but also contributes robust support to the upgrade of smart manufacturing across various sectors. From the lab to the workshop, it exemplifies the strength and potential of Chinese precision engineering on the global stage.

Specifications:
Precision Grade: DIN8e27
Material: C45 / 40Cr / 42CrMo
Type: Helical Rack
Treatment of Teeth: Milled
Hardening Treatment: Overall tempering to HRC18–20; no high-frequency surface hardening
Sides Ground: Included
Right hand angle: 19°31'42”
Pressure Angle: 20°
Total Pitch Error: 0.08mm/1000mm

The DIN8-grade helical gear rack by Yuchen is a medium-precision linear transmission component designed in compliance with DIN standards. It is well-suited for general automation and positioning applications where ultra-high precision is not mandatory.

Precision Performance:
Manufactured to DIN 8 tolerance, the gear rack offers controlled tooth profile and cumulative pitch errors. It ensures reliable linear motion and repeatable positioning in systems such as standard CNC engraving machines and automated assembly lines.

Materials & Processing:
The gear racks are commonly produced from C45 steel or medium-carbon alloy steels such as 40Cr and 42CrMo. After undergoing a tempering process, the overall tooth body reaches a hardness of HRC18–22, achieving a balance between wear resistance, strength, and toughness. This makes the gear rack capable of withstanding moderate impact loads in dynamic environments.

Key Features:
Yuchen utilizes advanced production equipment and a rigorous quality control system to deliver helical gear racks with smooth operation and low noise. Customization is available for parameters such as module, length, and special profiles to accommodate various non-standard applications.

Applications:
These gear racks are widely used in industrial automation, including gantry robots, conveyor systems, woodworking machinery such as engraving and edge-banding machines, and packaging equipment like filling and sorting systems. They provide a stable and reliable solution for linear transmission in demanding industrial settings.

Specifications:
Precision Grade: DIN10e27
Material: C45 / 40Cr / 42CrMo
Type: Helical Rack
Treatment of Teeth: Milled
Hardness Treatment: Full-body tempered HRC18–20; Tooth surface induction hardened to HRC50–55
Sides Ground: Included
Right hand angle: 19°31'42”
Pressure Angle: 20°
Total Pitch Error: 0.13mm/1000mm
Surface Treatment: Black Oxide / Phosphating

In the field of industrial power transmission, the YUCHEN precision-milled and induction-hardened helical gear rack stands out with its high performance, making it a preferred choice across various industries.

Precision Milling for Accurate Tooth Profiles
YUCHEN applies advanced CNC gear milling techniques to achieve highly accurate tooth geometry. Utilizing state-of-the-art milling machinery, every parameter is meticulously controlled to produce gear teeth with exceptional dimensional and profile accuracy. The less pitch deviation ensures smooth meshing between gear and rack, resulting in low noise and vibration. This stability is essential for high-performance systems, supporting efficient and reliable operation.

Hardened for Strength and Wear Resistance
Heat treatment is a vital process in enhancing the gear rack’s performance. YUCHEN adopts an optimized hardening technique that tempers the entire rack body (HRC18–20) and applies induction hardening to the tooth surface, achieving a hardness of HRC50–55. This treatment significantly increases surface wear resistance and fatigue strength, enabling long-lasting performance even under heavy loads, frequent start-stop cycles, and harsh working conditions. The result is extended product life and reduced maintenance costs.

Black Oxide Coating for Corrosion Protection
Beyond its technical attributes, the black oxide finish gives the gear rack a professional appearance while offering essential surface protection. The formed oxide layer resists oxidation and moisture, enhancing corrosion resistance in humid or chemically aggressive environments. Additionally, the blackened surface reduces friction during operation, contributing to improved transmission efficiency and smoother motion.

Rigid Quality Control Ensures Consistent Performance
From material selection to final inspection, YUCHEN operates under a stringent quality management system. Premium-grade steel is sourced to ensure consistent material properties. During production, sophisticated measuring tools such as coordinate measuring machines (CMMs) are used to inspect dimensional and geometrical tolerances. The product undergoes up to 18 quality control procedures, and only gear racks fully compliant with ISO9001 standards are approved for shipment—guaranteeing reliable quality in every unit.

YUCHEN DIN10 precision-milled, hardened, and blackened helical gear racks are widely used in automation systems, CNC machinery, laser cutting machines, woodworking equipment, and more. If you are seeking a robust and precise gear rack solution, contact YUCHEN today. We are ready to provide tailored solutions and professional service for your industrial needs.