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As a professional manufacturer from Henan San Kuang Machinery Technology Co., Ltd., we are proud to present our 40Cr Quenched Precision Heavy Load Gear Module 4 Non-standard Gear for Industrial Machinery. This gear is engineered to deliver exceptional performance under extreme conditions, combining 40Cr alloy steel with a precise quenching process to achieve outstanding hardness and wear resistance. With a module of 4 and a robust non-standard design, it is tailored for heavy-duty industrial applications where reliability and longevity are critical. Our factory, spanning over 10,000 square meters and equipped with advanced CNC machining centers, ensures each gear meets the highest standards of precision and durability.
Key Product Features and Benefits
Material Excellence: 40Cr alloy steel provides high strength and toughness, ideal for heavy load transmission.
Quenched Heat Treatment: Surface hardness reaches HRC 40-55, reducing tooth wear and extending service life.
Precision Manufacturing: Gear grinding ensures pitch accuracy and smooth operation, minimizing noise and vibration.
Module 4 Design: Balances load capacity and size, suitable for medium to heavy machinery.
Non-Standard Customization: We can modify tooth profile, bore diameter, keyway, and overall dimensions to fit your specific equipment.
Heavy Load Capability: Optimized tooth geometry for maximum torque transmission under high stress.
Versatile Application: Widely used in mining conveyors, cement mills, steel rolling mills, and other industrial machinery.
Quality Control: Raw material inspection, in-process checks, and final inspection report available.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | 40Cr Alloy Steel (AISI 5140 equivalent) |
| Heat Treatment | Quenching + Tempering (Hardness HRC 45±5) |
| Module | 4 |
| Number of Teeth | Customizable (e.g., 20–100 teeth) |
| Pressure Angle | 20° (standard) or customized |
| Precision Grade | ISO 7-8 (grinding finish) |
| Tooth Surface Finish | Ra 0.8–1.6 μm |
| Max Outer Diameter | Up to 1,200 mm (custom) |
| Bore Diameter | As per customer drawing |
| Keyway | Available upon request (standard or custom) |
This gear is manufactured using precision hobbing and gear grinding processes, ensuring consistent tooth profile and minimal runout. The 40Cr material after quenching provides a strong core toughness combined with a hard wear-resistant surface. It is ideal for applications requiring high torque transmission such as heavy load conveyors, crushers, and winches. Our non-standard design capability allows us to produce gears with special tooth modifications (e.g., tip relief, crowning) to improve load distribution and reduce noise.
Why Choose Henan San Kuang Machinery?
Experienced Manufacturer: Founded in 2022 but built on decades of industry expertise, our team of 51-100 skilled workers operates in a 10,000-30,000 m² factory.
Global Export Presence: With an annual export value of US$2.5M–5M, we ship to North America, South America, Europe, Asia, Africa, and Oceania. Main ports include Shanghai, Lianyungang, Qingdao, and Tianjin.
Customization Flexibility: We accept OEM/ODM orders, providing free design suggestions based on your application needs. Sample lead time is 15-20 days for standard customization.
After-Sales Support: Our technical team offers online guidance and troubleshooting for installation and maintenance.
We have successfully supplied heavy load gears to clients in the mining and cement industries, receiving positive feedback on durability and performance. Our strict raw material sourcing and in-house heat treatment facility guarantee that each gear withstands the toughest operating conditions. Whether you need a single gear or batch production, we can meet your requirements with competitive pricing and fast delivery.
Trusted by Industry Leaders
We serve markets across 15+ countries and maintain a strong reputation for precision gears. Our factory’s annual export value of US$2.5-5 Million reflects our capacity and reliability. Contact us today to discuss your specific gear requirements – we can provide a free drawing review and quotation within 24 hours.
Henan San Kuang Machinery Technology Co., Ltd. – Your Trusted Partner for Heavy Duty Gears.
Frequently Asked Questions (FAQ)
Q: What is the typical hardness of this 40Cr quenched gear?
A: After quenching and tempering, the surface hardness reaches HRC 40-55, with core hardness around HRC 20-30, providing a good balance between wear resistance and toughness.Q: Can you customize the gear dimensions if I don't have a drawing?
A: Yes, we can accept your existing gear sample or provide design assistance based on your application parameters (e.g., center distance, ratio, torque). We will generate a 2D/3D drawing for your approval.Q: What is the minimum order quantity (MOQ) for non-standard gears?
A: Our MOQ is 1 piece for prototype or trial orders. For batch production, we recommend 10-50 pieces to optimize cost, but we are flexible.Q: How do you ensure gear precision and quality?
A: We use coordinate measuring machines, gear testers, and hardness testers throughout production. Each gear undergoes final inspection with a report that includes tooth profile, pitch, and runout data.Q: What is the typical lead time for a custom gear?
A: For a single piece, the lead time is approximately 15-20 working days after drawing approval. For larger orders, it depends on quantity, typically 25-35 days.Q: Can you provide surface treatment options like blackening or phosphating?
A: Yes, we offer black oxide, phosphating, shot blasting, and other surface finishes for corrosion protection. Please specify your requirement.Q: Is this gear suitable for high-speed applications?
A: This gear is primarily designed for heavy load and moderate speed. For high-speed applications, we recommend upgrading to alloy steel with case-hardening and gear grinding for improved accuracy. Please consult our engineer.Q: What payment terms do you accept?
A: Typically T/T (30% deposit, 70% before shipment) or L/C at sight for large orders. We also accept trade assurance via Alibaba.
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