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Help CenterOEM Customized Slewing Bearing Internal Gear Turntable Bearing
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Based in Luoyang, Henan, China, Henan San Kuang Machinery Technology Co., Ltd. specializes in manufacturing high-quality slewing bearings. Since our establishment in 2022, we have grown to operate a 10,000-30,000 square meter factory with 51-100 skilled employees, and annual export value between US$2.5 million and US$5 million. Our OEM Customized Slewing Bearing with Internal Gear is designed to meet the exacting demands of heavy machinery across global markets.
This turntable bearing integrates an internal gear tooth profile directly into its inner ring, offering space-saving design and reliable torque transmission. It is ideal for applications where rotation and load support must coexist, such as cranes, excavators, wind turbines, and robotic arms. With full OEM customization, we can adjust dimensions, gear parameters, materials, and heat treatment to suit your specific working conditions.
Below are the key features and technical specifications of our internal gear slewing bearing:
- Customizable Dimensions: Outer diameter from 200 mm to 5000 mm, inner diameter and height tailored to your design.
- Internal Gear Design: Gear teeth cut on the inner ring, available in standard or custom modulus and number of teeth.
- High Load Capacity: Capable of supporting axial, radial, and moment loads simultaneously.
- Durable Materials: Made from 50Mn or 42CrMo alloy steel, with optional induction hardening and nitriding.
- Precision Manufacturing: Tolerance grades P5, P6, or custom, ensuring smooth rotation and long service life.
- Sealing Options: Choice of rubber seals, metal shields, or labyrinth seals for various environments.
- Lubrication System: Oil or grease lubrication with multiple grease nipples for convenient maintenance.
- Mounting Configuration: Bolt holes or threaded holes on both rings, supplied with mounting instructions.
| Parameter | Standard Range | Customization Available |
|---|---|---|
| Outer Diameter | 200 – 5000 mm | Yes |
| Inner Ring Bore | 100 – 4000 mm | Yes |
| Gear Modulus | 2 – 20 mm | Yes |
| Number of Teeth | 20 – 200 teeth | Yes |
| Static Load Capacity (Axial) | Up to 25,000 kN | Yes |
| Dynamic Load Capacity (Axial) | Up to 15,000 kN | Yes |
| Tolerance Grade | P5 / P6 / Custom | Yes |
| Weight | 50 – 5000 kg | Yes |
Why choose our OEM Customized Slewing Bearing? Our factory has been exporting to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, serving industries such as material handling, renewable energy, port machinery, and mining. We ship through major ports like Shanghai, Lianyungang, Qingdao, and Tianjin, ensuring timely delivery worldwide.
Each bearing undergoes strict quality control during raw material inspection, forging, heat treatment, machining, gear cutting, and final assembly. We maintain a professional engineering team ready to provide technical support and custom solutions. With a total employee count of 51-100, we can handle both small batch prototypes and large volume production runs.
Our annual export value of US$2.5–5 million demonstrates our commitment to international quality standards. We invite you to contact us for a quote or design consultation. Let us tailor a slewing bearing with internal gear that perfectly matches your application requirements.
Frequently Asked Questions
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Q: What sizes of internal gear slewing bearings can you make?
A: Our outer diameter range is 200mm to 5000mm. Custom sizes outside this range are possible upon request. -
Q: Can you customize the gear parameters?
A: Yes, we can adjust modulus, number of teeth, pressure angle, and gear face width according to your specifications. -
Q: What materials are used for these bearings?
A: Common materials are 50Mn and 42CrMo alloy steel. We also offer 42CrMo4 or customized alloys for extreme conditions. -
Q: Do you provide heat treatment?
A: Yes, we offer induction hardening, nitriding, and overall quenching to achieve required hardness and wear resistance. -
Q: What is the typical lead time?
A: Lead time varies by size and complexity, typically 30–60 days. Rush orders can be negotiated. -
Q: Do you supply mounting bolts and technical drawings?
A: Yes, we provide installation instructions, bolt recommendations, and 2D/3D drawings upon request. -
Q: How do you ensure quality?
A: We perform 100% inspection on critical dimensions, gear accuracy, and material certificates. Non-destructive testing is available as an option. -
Q: Can I get a sample order before mass production?
A: Absolutely. We welcome prototype orders to validate fit and performance before scaling up.
Contact Henan San Kuang Machinery Technology Co., Ltd. today. Our experienced team is ready to help you find the perfect slewing bearing solution for your project.
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