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Help Center40Cr Quenched and Tempered Agricultural Gear, 60HRC Surface Hardness, Wear-Resistant for Tillers
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As a specialized manufacturer with over a decade of experience in precision machinery components, Henan San Kuang Machinery Technology Co., Ltd. is proud to present our high-performance 40Cr Quenched and Tempered Agricultural Gear. Engineered specifically for the demanding environments of agricultural tillage, this gear is built to deliver exceptional durability and reliable power transmission, directly addressing the core need for reduced downtime and lower long-term operating costs in farming equipment.
Our gears are manufactured through a meticulous process that ensures consistent quality and performance. The combination of premium material selection and advanced heat treatment techniques results in a component that stands up to abrasive soils, shock loads, and continuous operation.
- Superior Material Foundation: We utilize 40Cr alloy steel, renowned for its excellent hardenability, good toughness, and fatigue strength. This material forms the ideal base for creating a gear that is both hard on the surface to resist wear and tough at its core to withstand impact.
- Precision Heat Treatment: The gear undergoes a controlled quenching and tempering process. Quenching achieves the high surface hardness (60 HRC), while subsequent tempering relieves internal stresses and optimizes the core's mechanical properties, preventing brittleness.
- Engineered for Agricultural Stress: Designed specifically for tillers and cultivators, the gear's tooth profile and strength are calculated to handle the variable torque and sudden jolts encountered when engaging with tough soil, roots, and rocks.
- Enhanced Wear Life: The 60 HRC surface hardness directly translates to a significant increase in service life compared to standard gears. This means fewer replacements, less maintenance, and more acres covered per gear.
- Customization Options: While we offer a standard range, our production flexibility allows for customization of dimensions, number of teeth, bore size, and keyway specifications to match your specific equipment models.
Below is a summary of key technical specifications for our standard gear offerings:
| Parameter | Specification / Value |
|---|---|
| Primary Material | 40Cr Alloy Steel |
| Surface Hardness | 60 HRC (Rockwell C Scale) |
| Core Hardness (Typical) | 28-35 HRC |
| Heat Treatment Process | Induction Quenching & Tempering |
| Key Manufacturing Steps | Forging, Precision Machining, Heat Treat, Grinding (optional) |
| Main Application | Gearboxes for Rotary Tillers, Cultivators, Power Harrows |
| Advantage | High Abrasion Resistance, Good Impact Strength |
Benefits for Your Business: By integrating our 40Cr hardened gears into your tiller assemblies or offering them as replacement parts, you provide your end-users with equipment that suffers less from gear tooth wear and pitting. This leads to:
- Increased Machine Uptime: Longer intervals between gear failures mean more productive time in the field.
- Reduced Total Cost of Ownership: Lower frequency of part replacements decreases long-term operating expenses for farmers.
- Improved Customer Satisfaction: Reliable performance builds trust in your equipment brand.
- Competitive Edge: Offering components known for durability can be a key differentiator in the agricultural machinery market.
Operating from our expansive 10,000-30,000 sqm facility in Luoyang and backed by a robust quality management system certified under ISO9001, we ensure every gear meets stringent production standards. Our commitment to responsible manufacturing is further reflected in our ISO14000 environmental management and OHSAS18001 occupational health and safety certifications. With an annual export value reaching up to US$5 million and a presence in major markets across North America, South America, Europe, Asia, Africa, and Oceania, we have proven our capability to deliver reliable components globally. We ship efficiently via key ports including Shanghai, Qingdao, and Tianjin. Choose our 40Cr Quenched and Tempered Agricultural Gear for a blend of proven metallurgy, precision engineering, and manufacturing reliability that enhances the performance of agricultural tillage equipment.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of using 40Cr steel for agricultural gears?
A: 40Cr alloy steel offers an optimal balance of hardenability and toughness. It can be heat-treated to achieve a very hard, wear-resistant surface (like 60 HRC) while maintaining a tougher, more ductile core that is crucial for absorbing the shock loads common in tilling operations.
Q2: How does the quenching and tempering process benefit the gear's performance?
A: Quenching rapidly cools the steel to create a very hard martensitic structure on the surface. Tempering then reheats it to a lower temperature, which reduces brittleness, relieves stresses, and improves the core's toughness and impact resistance, preventing catastrophic failure under load.
Q3: Is a surface hardness of 60 HRC suitable for all soil conditions?
A: 60 HRC provides excellent resistance to abrasive wear from sandy or rocky soils. For extremely abrasive conditions or if the gear also faces high-intensity impact, we can discuss specific case-hardening depths or alternative material grades to tailor the performance.
Q4: Can you produce gears to match the exact dimensions of my existing tiller model?
A: Yes, customization is a core service. We require your technical drawings or a sample part. Our capabilities include forging and machining to produce gears with specific module, number of teeth, bore diameter, keyway, and face width dimensions.
Q5: What quality control measures are in place during manufacturing?
A: Our ISO9001-certified system governs the entire process. We conduct checks on raw material certificates, monitor heat treatment parameters (temperature, time), perform hardness tests (surface and core), and conduct final dimensional inspections to ensure conformity.
Q6: What is the typical lead time for an order?
A: Lead time depends on order quantity and customization level. For standard gear profiles in moderate volumes, production typically takes 4-6 weeks. We provide a precise timeline upon receipt of your detailed inquiry and specifications.
Q7: Do you offer any surface finishing or coating beyond heat treatment?
A: Standard finish is from machining and heat treatment. Additional processes like shot peening for fatigue strength or specific anti-corrosion coatings (e.g., phosphating) are available upon request to meet particular environmental or performance requirements.
Q8: How do you ensure consistency in hardness across all gears in a batch?
A: We use controlled atmosphere or induction heating furnaces with precise temperature profiling. Hardness is verified using calibrated Rockwell hardness testers on sampled parts from each production batch, ensuring the specified 60 HRC surface hardness is consistently achieved.
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