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Help CenterHigh-Precision Spur Gear Ring DIN 3967 Class 8, Inner Diameter 80mm, Outer Diameter 200mm, 45# Steel
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Henan San Kuang Machinery Technology Co., Ltd., established in 2022 with a modern factory spanning 10,000–30,000 square meters and a dedicated team of 51–100 skilled employees, is proud to offer the High-Precision Spur Gear Ring DIN 3967 Class 8. This component is manufactured from premium 45# steel and features an inner diameter of 80 mm and outer diameter of 200 mm, delivering exceptional dimensional accuracy and load-bearing capacity for demanding transmission applications. Our advanced production capabilities and strict quality control ensure that each gear ring meets the stringent requirements of the DIN 3967 Class 8 tolerance standard, providing reliable performance and extended service life.
As a direct manufacturer based in Luoyang, Henan, China, we leverage years of expertise in gear manufacturing to supply customized solutions to global clients. Our products have been successfully exported to markets including North America, South America, Europe, Southeast Asia, Africa, and Oceania, reflecting our commitment to international quality standards. The spur gear ring described here is ideal for use in gearboxes, industrial reducers, machine tools, agricultural equipment, and other mechanical power transmission systems where precise motion control is critical.
Product Features & Technical Specifications
- High-Precision Machining: Gear teeth are cut and finished using advanced CNC hobbing and shaping machines, achieving DIN 3967 Class 8 accuracy. This ensures smooth engagement, low noise, and minimal vibration during operation.
- Robust Material: Made from 45# steel, a medium-carbon structural steel known for excellent strength and toughness after heat treatment. It provides good wear resistance and can handle high torque loads.
- Optimized Dimensions: Inner diameter 80 mm, outer diameter 200 mm. The gear ring design allows for easy integration into existing assemblies, with customizable bore keyways and mounting holes upon request.
- Heat Treatment Options: We offer customizable heat treatment processes such as quenching and tempering (Q&T), normalizing, or surface hardening to meet specific hardness and ductility requirements.
- Surface Finishing: Available surface treatments include black oxide, phosphating, or rust-proof coating to enhance corrosion resistance and appearance.
- Strict Quality Control: Each batch undergoes comprehensive dimensional inspection (using CMM and gear testers) and material certification to ensure consistency and compliance with DIN 3967.
| Parameter | Value |
|---|---|
| Material | 45# Steel |
| Inner Diameter | 80 mm |
| Outer Diameter | 200 mm |
| Precision Grade | DIN 3967 Class 8 |
| Standard | DIN 3967 |
| Pressure Angle | 20° (standard, customizable) |
| Hardness (Q&T) | HRC 28–32 (adjustable) |
| Typical Application | Industrial gearboxes, reducers, machinery |
The combination of high-precision tooth geometry and quality material directly translates into several customer benefits:
- Reduced Noise and Vibration: Class 8 precision ensures that the gear ring meshes smoothly with mating gears, lowering operating noise and extending equipment life.
- Higher Load Capacity: 45# steel with proper heat treatment offers excellent tensile strength, enabling the gear ring to transmit higher torque without failure.
- Longer Service Life: Precise tooth profiles reduce stress concentration and wear, resulting in fewer replacements and lower maintenance costs.
- Easy Integration: Standard inner/outer diameters match common shaft and housing dimensions, simplifying design and assembly.
- Customizable Options: We can modify tooth count, face width, keyway dimensions, and surface finish to suit your unique requirements.
Manufacturing Excellence at Henan San Kuang
Our factory in Luoyang is equipped with modern gear processing equipment including CNC hobbing machines, gear grinders, and coordinate measuring machines (CMM). With 10,000–30,000 square meters of production space and a workforce of 51–100 experienced technicians, we maintain rigorous quality control from raw material to finished product. Each gear ring is inspected for tooth profile, pitch, runout, and surface finish.
Our annual export value of US$2.5 Million to US$5 Million across more than 10 major markets worldwide demonstrates our ability to deliver consistent quality and on-time shipments. We ship from major Chinese ports including Shanghai, Lianyungang, Qingdao, and Tianjin, ensuring efficient logistics to any destination.
Why choose our High-Precision Spur Gear Ring?
- Direct Manufacturer Pricing – Save money by buying from the source.
- One-Stop Customization – We assist with design optimization, heat treatment, and finishing.
- Fast Sample Turnaround – Rapid prototyping for qualification.
- Reliable After-Sales Support – Our engineering team provides technical guidance.
Contact us today for a quote or to discuss your specific requirements. We look forward to becoming your trusted partner in precision transmission components.
Frequently Asked Questions (FAQ)
Q1: What does DIN 3967 Class 8 precision mean for actual performance?
A1: DIN 3967 Class 8 defines tight tolerances on tooth profile, pitch, and runout. It ensures the gear ring operates smoothly at moderate speeds and loads, with typical applications in industrial gearboxes where quiet operation and consistent transmission are expected.
Q2: Can you provide this gear ring in other materials, like alloy steel or stainless steel?
A2: Yes, we offer customization in materials such as 40Cr, 20CrMnTi, 42CrMo, and stainless steel. Please specify your requirements, and we will advise on the best material for your application.
Q3: What is the typical lead time for this spur gear ring?
A3: For standard specifications (no custom heat treatment or special features), lead time is approximately 15–25 working days after order confirmation. Customized orders may take 30–45 days depending on complexity. We offer expedited options for urgent needs.
Q4: Do you offer heat treatment services? What hardness can be achieved?
A4: Yes, we provide quenching and tempering, normalizing, and induction hardening. For 45# steel, typical hardness after Q&T is HRC 28–32, but it can be adjusted based on your specifications.
Q5: How do you ensure the gear ring meets the required precision during mass production?
A5: We use in-house CMM and gear testers to inspect critical parameters on a per-sample and batch basis. Our quality system follows ISO 9001 principles (certification available upon request) and we provide inspection reports with each shipment.
Q6: What is the minimum order quantity (MOQ)?
A6: Our MOQ for standard spur gear rings is 50 pieces. For customized dimensions or special heat treatment, MOQ may vary. We welcome small trial orders for new customers.
Q7: Can you provide samples before mass production?
A7: Yes, samples are available. The sample cost and shipping will be arranged, and the cost can be deducted from the first bulk order.
Q8: How is the gear ring packaged for export?
A8: Each gear ring is individually wrapped in anti-rust paper, then packed in wooden crates or pallets suitable for sea freight. We also apply rust prevention oil before packaging to protect against moisture during transit.
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