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Help CenterAnnular Gear Ring 8mm Pitch, 120 Teeth, Induction Hardened, for Heavy Duty Machinery
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Welcome to Henan San Kuang Machinery Technology Co., Ltd., a professional manufacturer with a factory spanning 10,000-30,000 square meters and a dedicated team of 51-100 employees. Our Annular Gear Ring 8mm Pitch, 120 Teeth, Induction Hardened is specifically engineered for heavy-duty machinery applications where reliability, durability, and precision are paramount. With an annual export value ranging from US$2.5 million to US$5 million, we have successfully supplied our products to markets across North America, South America, Europe, Asia, and Africa, demonstrating our global reach and commitment to quality.
This gear ring is manufactured using premium alloy steel and undergoes a rigorous induction hardening process to achieve exceptional surface hardness and wear resistance. The 8mm pitch and 120 teeth configuration provide optimal torque transmission and smooth operation in demanding environments such as mining equipment, construction machinery, industrial presses, and heavy-duty conveyors. Our manufacturing facilities are equipped with advanced CNC gear cutting and heat treatment lines, ensuring each gear ring meets strict tolerances and performance standards.
Key Features & Technical Specifications
- High Precision Pitch: 8mm module ensures accurate meshing with mating gears, reducing noise and vibration.
- 120 Teeth Design: Provides a high reduction ratio and smooth power transmission for heavy loads.
- Induction Hardened Surface: Achieves a hardened case depth of 1.5–3.0 mm (adjustable), with core toughness maintained for impact resistance.
- Material Grade: Made from 42CrMo or 40Cr alloy steel (or equivalent), offering excellent strength and fatigue life.
- Customizable Dimensions: Outer diameter, inner diameter, and tooth profile can be tailored to your specific application.
- Heat Treatment Options: Induction hardening, carburizing, or nitriding available upon request.
- Quality Control: 100% dimensional inspection and hardness testing before shipment.
| Parameter | Specification |
|---|---|
| Module (Pitch) | 8 mm |
| Number of Teeth | 120 |
| Hardening Method | Induction Hardening (Surface) |
| Surface Hardness | HRC 50-55 (typical, customizable) |
| Material | 42CrMo / 40Cr / Alloy Steel (customizable) |
| Application | Heavy Duty Machinery (Mining, Construction, Industrial) |
| Outer Diameter | Customizable (approx. 960 mm based on pitch and teeth) |
| Inner Diameter | Customizable to fit shaft or hub |
Advantages & Customer Benefits
- Extended Service Life: Induction hardening significantly increases wear resistance, reducing downtime and replacement costs by up to 30% compared to untreated gears.
- High Load Capacity: The 120-tooth design distributes load evenly, allowing the gear to withstand heavy impact and static loads in harsh environments.
- Precision Matching: Our CNC gear hobbing and grinding ensure precise tooth geometry, minimizing backlash and improving efficiency.
- Flexible Customization: We can adjust the gear's outer diameter, mounting holes, keyways, and hardness profile to meet your exact specifications.
- Rigorous Testing: Each gear ring is inspected for dimensional accuracy, surface hardness, and magnetic particle testing (optional) to guarantee reliability.
- Competitive Lead Time: With our large factory and experienced workforce, typical production lead time is 30-45 days for standard orders, and faster for urgent requests.
Trusted Quality & Global Service
At Henan San Kuang Machinery Technology Co., Ltd., we are committed to delivering products that meet international quality standards. Our company holds multiple certifications such as ISO9001, ISO14000, and OHSAS18001, reflecting our dedication to quality management, environmental responsibility, and occupational health. We have established a robust supply chain from our base in Luoyang, Henan, and ship through major ports including Shanghai, Qingdao, Tianjin, and Lianyungang.
Our annual export value of US$2.5-5 million demonstrates our strong presence in global markets, and our team of experts is ready to assist you with technical drawings, engineering support, and after-sales service. Whether you need a single prototype or bulk production, we ensure consistent quality and on-time delivery.
Contact us today to discuss your heavy-duty annular gear requirements. We are confident that our 8mm pitch, 120 teeth induction hardened gear ring will exceed your expectations in performance and durability.
Frequently Asked Questions (FAQ)
Q1: What is the typical material used for this annular gear ring?
A: The standard material is high-quality alloy steel such as 42CrMo or 40Cr. We can also use other materials like 20CrMnTi or 35CrMo based on your specific requirements. All materials are available with certification.
Q2: Can the pitch and number of teeth be customized?
A: Yes, we offer full customization. The 8mm pitch and 120 teeth are standard options, but we can manufacture any module (pitch) and tooth count according to your engineering drawings. Please provide your design for a quotation.
Q3: What is the maximum outer diameter you can produce for this gear ring?
A: Our factory can produce annular gear rings with outer diameters up to 3000 mm. For the 8mm pitch, 120 teeth configuration, the approximate outer diameter is 960 mm, but we can adjust dimensions as needed.
Q4: How does induction hardening improve the gear's performance?
A: Induction hardening creates a hard, wear-resistant surface layer while maintaining a tough core. This reduces tooth wear, pitting, and fatigue failures, extending the gear's service life even under heavy loads and abrasive conditions.
Q5: What quality inspections do you perform on each gear ring?
A: Each gear ring undergoes dimensional verification using CMM, hardness testing (Rockwell or Brinell), magnetic particle inspection (optional), and runout checks. We also provide a material test certificate and inspection report upon request.
Q6: What is the typical lead time for production?
A: For standard designs without major customization, lead time is approximately 30-45 days. Custom orders may require 45-60 days depending on complexity. We can expedite urgent orders with additional charges.
Q7: Do you provide samples before mass production?
A: Yes, we can produce a sample gear ring for your evaluation. The sample cost is usually negotiable, and we can deduct it from the mass production order.
Q8: What are your shipping terms and ports?
A: We ship via FOB, CIF, or EXW terms. Our main ports are Shanghai, Lianyungang, Qingdao, and Tianjin. We can also arrange door-to-door delivery for some destinations.
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