Split Gear Ring for Speed Reducers, 20MnCr5 Steel, 8 Module, 40 Teeth, 250mm OD
Product Spotlights
As a professional manufacturer from Henan San Kuang Machinery Technology Co., Ltd., we are proud to introduce our high-quality Split Gear Ring for Speed Reducers, crafted from premium 20MnCr5 steel. With an 8 module, 40 teeth, and 250mm outer diameter, this split gear ring is designed to deliver reliable performance in demanding speed reducer applications. Our factory, spanning over 10,000 square meters, has been dedicated to precision gear manufacturing since 2014, ensuring that every product meets rigorous quality standards. This split gear ring offers exceptional wear resistance, high load capacity, and easy installation, making it a trusted choice for industrial machinery worldwide.
The split design allows for effortless assembly and maintenance without disassembling the entire shaft system, significantly reducing downtime. The 20MnCr5 alloy steel, after carburizing and quenching (optional), achieves a surface hardness of 58-62 HRC, providing excellent durability against fatigue and pitting. Each gear ring undergoes strict quality control to ensure dimensional accuracy and smooth operation. Below are the key technical specifications:
| Parameter | Value |
|---|---|
| Material | 20MnCr5 Steel (Case-hardening steel) |
| Module | 8 |
| Number of Teeth | 40 |
| Outer Diameter | 250 mm |
| Type | Split Gear Ring (two-piece design) |
| Hardness (after heat treatment) | 58-62 HRC (optional) |
| Precision Grade | DIN 6-7 (customizable) |
| Surface Finish | Ra ≤ 1.6 μm |
Key Features and Benefits:
- Split Design for Easy Maintenance: The gear ring is divided into two halves, allowing quick installation and replacement without removing the coupled shaft or bearings. This reduces maintenance time and labor costs.
- High Strength 20MnCr5 Steel: This low-carbon alloy steel offers excellent core toughness and surface hardness after carburizing, ensuring long service life under heavy loads and shock conditions.
- Precise Module and Tooth Profile: With an 8 module and 40 teeth, the gear ring provides smooth meshing and efficient power transmission in speed reducers. The tooth profile is machined to tight tolerances to minimize noise and vibration.
- Customizable Heat Treatment: We offer optional carburizing and quenching to achieve the desired hardness profile. The case depth and hardness can be tailored to your specific application requirements.
- Rigorous Quality Control: Each split gear ring is inspected using advanced measuring equipment, including gear testers and CMM, to ensure dimensional accuracy and geometric conformity.
- Versatile Application: Suitable for various speed reducer types, including planetary reducers, helical reducers, and worm reducers, as well as other industrial gearboxes.
Why Choose Henan San Kuang Machinery?
Since our establishment in 2014, we have grown into a modern manufacturing facility with over 10,000 square meters of workshop space and a dedicated team of 51-100 skilled employees. Our annual export value exceeds US$2.5 million, serving clients across North America, South America, Europe, Southeast Asia, Africa, and the Middle East. We hold multiple certifications including ISO9001, ISO14001, OHSAS18001, and others, demonstrating our commitment to quality management, environmental responsibility, and occupational health safety.
Our split gear rings are manufactured using advanced CNC gear hobbing and shaping machines, followed by heat treatment in controlled atmosphere furnaces. Each batch is tested for hardness, microstructure, and dimensional stability. We also offer custom solutions for non-standard modules, tooth counts, and materials upon request. With convenient shipping from major ports such as Shanghai, Qingdao, and Tianjin, we ensure timely delivery worldwide.
Frequently Asked Questions (FAQ)
1. What is the advantage of a split gear ring compared to a solid ring?
A split gear ring allows installation and removal without disassembling the shaft or bearings, saving significant time and effort during maintenance. It is particularly useful in confined spaces or when the gear is mounted on a long shaft.
2. Can this gear ring be used for high-speed applications?
Yes, but it depends on the application. The split design may introduce a slight imbalance if not properly aligned. For high-speed use, we recommend balancing the assembly after installation. Our precision machining ensures minimal runout.
3. What heat treatment options are available?
We offer carburizing and quenching, induction hardening, and nitriding as optional treatments. The standard for 20MnCr5 is carburizing with a case depth of 0.8-1.2 mm, achieving surface hardness of 58-62 HRC.
4. How do you ensure the split plane aligns correctly?
Each half is machined with precision dowel pin holes and matching faces. We provide alignment pins and bolts for secure assembly. The mating surfaces are ground to ensure flatness and concentricity.
5. What is the typical lead time for this product?
For standard sizes (8 module, 40 teeth, 250mm OD), lead time is approximately 15-25 working days, depending on order quantity and heat treatment requirements. Custom specifications may take longer.
6. Do you provide certificates of material and quality?
Yes, we can provide material test certificates (MTC) for the 20MnCr5 steel, as well as dimensional inspection reports and hardness test reports upon request.
7. Is this split gear ring suitable for replacement of existing worn rings?
Absolutely. Our split gear ring is designed as a direct replacement for many common speed reducer models. Please provide your original gear dimensions or a sample for exact matching.
8. What is the minimum order quantity (MOQ)?
Our MOQ is 1 piece for standard sizes. For custom sizes, MOQ may vary. We accommodate both small trial orders and large volume production.
Contact us today for a quote or technical consultation. With our strong manufacturing capability and global shipping network, we are ready to support your gear ring needs.
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