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Help CenterNon-standard Custom Spur Gears Module 1.5-10 Hardened 40Cr Material
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As a professional manufacturer established in 2014, Henan San Kuang Machinery Technology Co., Ltd. specializes in producing high-quality Non-standard Custom Spur Gears with module range 1.5-10. Our gears are made from hardened 40Cr material, offering excellent wear resistance and fatigue strength for demanding industrial applications. With a factory covering 10,000-30,000 square meters and an experienced team of 51-100 employees, we ensure precise customization to meet your exact specifications.
These spur gears are designed for reliable power transmission in machinery where standard gear sizes do not fit. Whether you need modified tooth profiles, special bore diameters, keyways, or unique hardness levels, our engineering team can deliver gears tailored to your equipment. We serve clients across North America, South America, Europe, Asia, Africa, and Oceania, maintaining consistent quality through our ISO9001, ISO14001, and OHSAS18001 certified production processes.
Product Features & Technical Specifications
- Material Advantage: 40Cr alloy steel provides high tensile strength (≥980 MPa) and toughness after heat treatment, suitable for heavy-load transmission.
- Wide Module Range: Module 1.5 to 10 covers a broad spectrum of gear sizes, enabling compatibility with various shaft centers and torque requirements.
- Heat Treatment: Through-hardening or induction hardening options available; typical hardness reaches 50-55 HRC, prolonging service life against pitting and wear.
- Custom Dimensions: Outside diameter, root diameter, tooth count, face width, bore diameter, and keyway can be fully customized per drawing or sample.
- Precision Control: Achievable accuracy up to ISO Grade 6 (AGMA Q8-Q9) using advanced gear hobbing and grinding machines.
- Surface Protection: Standard black oxide coating prevents rust; phosphating, nickel plating, or other finishes available on request.
- Rigorous Testing: Each gear undergoes dimensional inspection, hardness testing, and runout check to ensure conformity.
| Parameter | Specification |
|---|---|
| Material | 40Cr (equivalent to AISI 5140) |
| Module Range | 1.5 – 10 |
| Hardness | 50-55 HRC (optional, up to 58 HRC available) |
| Precision Grade | ISO 6-8 (AGMA Q8-Q10) |
| Max Outside Diameter | Up to 800 mm (larger on request) |
| Face Width | 10 – 200 mm (customizable) |
| Surface Finish | Ra 1.6 μm (grinding), Ra 3.2 μm (hobbing) |
| Applications | Mining conveyors, steel mills, cement kilns, packaging machinery, agricultural equipment |
Key Benefits to Your Business
- Eliminate Fitment Issues: Non-standard dimensions ensure perfect replacement for worn or obsolete gears, reducing downtime.
- Cost-Effective Customization: No need to redesign entire systems – simply provide your specifications and we manufacture precisely.
- Longer Operational Life: Hardened 40Cr with proper heat treatment resists tooth breakage and surface fatigue, lowering maintenance frequency.
- Fast Prototyping: We can produce small batches for testing before mass production, with typical lead time of 15-25 working days.
With an annual export value of US$2.5-5 million, our gears are trusted by clients in more than 30 countries. We ship from major ports including Shanghai, Qingdao, Lianyungang, and Tianjin, ensuring convenient logistics. Our factory implements rigorous quality management under ISO9001, ISO14001, and OHSAS18001 certified systems, guaranteeing consistent product performance.
Contact us today with your gear drawing or detailed requirements. Our technical team will offer a free quotation and engineering support to optimize your transmission solution. We pride ourselves on delivering durable, precision gears that keep your machinery running smoothly.
Frequently Asked Questions (FAQ)
Q1: What is the minimum order quantity for custom spur gears?
A: We accept orders as low as 1 piece for prototyping. For mass production, MOQ is typically 10-50 pieces depending on module and complexity.
Q2: How do I provide specifications for a non-standard gear?
A: You can send a 2D/3D drawing, sample gear, or simply list the required parameters: module, number of teeth, outside diameter, bore size, face width, and any special treatments. We will verify and confirm.
Q3: What hardness level is available for 40Cr gears?
A: Standard hardened range is 50-55 HRC. If higher hardness is needed, we can optionally achieve up to 58 HRC through carburization or induction hardening (subject to geometry).
Q4: Can you replicate an old gear that is no longer in production?
A: Absolutely. We reverse-engineer worn or broken gears using measurement tools and CAD software to produce an exact match, even without original drawings.
Q5: What tolerance can you achieve for the bore diameter?
A: Bore tolerance is typically H7 (ISO fit). For precision requirements, H6 or custom fits are available upon request.
Q6: How long does it take to produce a custom order?
A: Lead time depends on complexity and quantity. A single gear prototype can be ready in 10-15 working days; batch orders (50-200 pieces) take 20-30 working days. Urgent orders can be expedited.
Q7: Do you provide heat treatment reports?
A: Yes, we include a material certificate and hardness test report with each shipment. Additional non-destructive testing (magnetic particle, ultrasonic) is available on request.
Q8: What payment terms do you accept?
A: We accept T/T (30% deposit, 70% before shipment), L/C at sight, and for long-term partners, net 30 days after credit approval.
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