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Help CenterExcavator Slewing Ring Bearing Replacement Spare Parts
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Henan San Kuang Machinery Technology Co., Ltd. is a professional manufacturer specializing in excavator slewing ring bearing replacement spare parts. Established in 2022, our factory covers 10,000-30,000 square meters and employs 51-100 skilled workers. We understand the critical role of the slewing ring in excavator performance — it supports the upper structure, enables smooth rotation, and withstands heavy loads. Our products are engineered to meet or exceed OEM specifications, providing a reliable and cost-effective solution for maintenance and repair. With annual export value reaching US$2.5-5 million, we serve clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and more.
Product Overview: Our excavator slewing ring bearing replacement spare parts are designed to restore your machine’s rotational stability and durability. Made from high-quality alloy steels like 50Mn and 42CrMo, they undergo precision heat treatment and machining to ensure long service life. Whether you need a single-row ball bearing for light-duty excavators or a crossed roller bearing for heavy-duty applications, we offer comprehensive options to match your equipment.
Key Features & Benefits
- High Load Capacity: Supports axial, radial, and tilting moment loads simultaneously, ensuring stable operation under tough conditions.
- Precision Manufacturing: CNC machining with tolerance control within IT7-IT8, guaranteeing smooth rotation and minimal vibration.
- Durable Materials: Forged or rolled rings from 50Mn or 42CrMo, hardened and tempered to HRC 50-55 for wear resistance.
- Sealing Options: Available with rubber seals, metal shields, or labyrinth seals to protect against dust, water, and debris.
- Customizable Dimensions: Inner diameter from 400 mm to 5000 mm, outer diameter up to 5500 mm, and height tailored to your requirements.
- Gear Types: Internal gear, external gear, or without gear — we can match any tooth profile and module.
- Easy Installation: Direct replacement for OEM parts, with mounting hole patterns pre-drilled as per standard or custom drawings.
- Cost-Effective: Save up to 30-50% compared to original manufacturer parts without compromising quality.
Technical Specifications (Typical Range)
| Parameter | Value Range | Remarks |
|---|---|---|
| Inner Diameter | 400 – 5000 mm | Custom sizes available |
| Outer Diameter | 600 – 5500 mm | Depends on design |
| Section Height | 50 – 300 mm | Based on load requirements |
| Material Hardness | HRC 50-55 | After heat treatment |
| Rotational Accuracy | ≤ 0.05 mm axial runout | Per standard inspection |
| Gear Module | 6 – 20 (optional) | Customer specified |
| Max Load Capacity | Up to 5,000 kN axial | Varies by size |
FAQ — Frequently Asked Questions
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Q: Are these slewing rings direct replacements for all excavator models?
A: Our products are designed as replacement spare parts for a wide range of excavators. We can match specific OEM part numbers. Please provide your machine model and bearing dimensions for a precise fit. -
Q: What materials are used in your slewing rings?
A: We primarily use 50Mn and 42CrMo alloy steels, which are hardened and tempered for high strength and wear resistance. Other materials are available upon request. -
Q: Do you offer custom gear teeth or mounting hole patterns?
A: Yes, we customize gear type (internal/external), module, number of teeth, and mounting hole locations based on your drawing or sample. -
Q: How long does the production take for a standard order?
A: For standard sizes without customization, lead time is typically 15-25 working days. Custom orders may require 30-45 days depending on complexity. -
Q: What is the warranty period?
A: We provide a 12-month warranty from the date of shipment against manufacturing defects. Please contact us for detailed warranty terms. -
Q: Can you provide inspection reports or certificates?
A: Yes, we offer material test certificates and dimensional inspection reports with each shipment. Third-party inspection is also available upon request. -
Q: What packaging do you use for export?
A: Each slewing ring is individually wrapped with rust-proof oil, foam padding, and wooden crates suitable for sea or air freight. We ensure safe delivery to ports like Shanghai, Lianyungang, Qingdao, or Tianjin. -
Q: Can I get a sample before bulk order?
A: Yes, sample orders are welcome. We can produce a single unit for testing, but sample cost and freight are to be borne by the buyer. Sample time is about 20-30 days.
Why Choose Henan San Kuang Machinery? As a dedicated manufacturer with a modern factory spanning 10,000-30,000 square meters, we combine advanced machining capabilities with rigorous quality control. Our team of 51-100 employees ensures every slewing ring undergoes strict inspection for dimensional accuracy, hardness, and rotational smoothness. We have successfully exported to over 15 countries and regions, including North America, Europe, Southeast Asia, and Africa, with an annual export value of US$2.5-5 million. Our experienced sales engineers provide technical support and prompt after-sales service. If you need a reliable excavator slewing ring bearing replacement, contact us today for a quote or customized solution. We are committed to delivering high-quality spare parts that keep your excavator running efficiently.
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