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Custom ODM/OEM SF-1 Oilless Bearing

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Focus on the research and development and production of various new self-lubricating bearings such as SF-1 Oilless Bearing.
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SF-1 Oilless Bearing Manufacturers

The SF-1 series metal composite self-lubricating bearings use low-carbon steel as the base material, the middle layer is a sintered spherical porous copper powder structure, and the working surface is composed of PTFE-based wear-resistant lubricating material. The composite material exhibits excellent mechanical load-bearing performance. The copper powder layer has a dual function: it can effectively dissipate the friction heat during the operation of the bearing, and it can also enhance the bonding strength between the plastic material layer and the steel matrix.

This PTFE material is specially developed for all-dry friction conditions, and has formed a series of products for different lubrication requirements, friction coefficients and service life standards. The PTFE metal composite material developed by SNNOV can maintain optimal performance in various load, speed and temperature conditions with or without external lubrication.

Zhejiang Shuangnuo Bearing Technology Co., Ltd. Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd. is China SF-1 Oilless Bearing Manufacturers and Custom ODM/OEM SF-1 Oilless Bearing Factory, we are a manufacturer specializing in producing various self-lubricating copper alloy products using centrifugal casting, continuous casting, metal mold casting, and other processes. Its main products include brass, aluminum bronze, tin bronze, and others produced according to national standard grades. It processes and produces various solid inlaid self-lubricating bearing products on this basis . At the same time, it uses sintering technology to produce bimetallic products and many other types of products. Since its establishment nearly 10 years ago, the company has focused on the research development, and production of various new self-lubricating bearings.

In the process of product production, our company has always insisted on independent casting production of raw materials to ensure the quality of products from the source; during the casting process, the whole process is monitored, and the finished product is tested by spectrometer three times before, in and after the furnace to confirm the material composition of the product. The national testing agency is regularly commissioned to test the material composition and mechanical properties of the product, and authoritative test reports can be provided to customers in need; the company implements integrated production from material to finished product processing and has more than 80 sets of advanced CNC machine tools, CNC lathes, machining centers, and other major equipment. The strong production capacity ensures that the material production is organized for customers for the first time, shortening the production cycle.
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    Establishment

    Founded in 2014, Shuangnuo has 10 years of experience in the industry.

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    Advanced Equipment

    Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.

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    Happy Clients

    There are more than 5,000 cooperative customers around the world.

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SF-1 Oilless Bearing Industry knowledge

Improving Machinery Lifespan: Maintenance and Care Methods for SF-1 Oilless Bearings

Overview

SF-1 Oilless Bearing is a self-lubricating, oil-free bearing widely used in industrial machinery, automotive, wind power equipment, and automated production lines. Its advantages include no need for additional lubrication, reduced maintenance costs, and excellent wear and corrosion resistance. To maximize machinery lifespan, proper maintenance and care are essential.

Company Background

Zhejiang Shuangnuo Bearing Technology Co., Ltd. specializes in manufacturing various self-lubricating copper alloy products, including brass, aluminum bronze, tin bronze, and more. The company also produces solid inlaid self-lubricating bearings and bimetallic products. Since its establishment nearly 10 years ago, Zhejiang Shuangnuo Bearing Technology has focused on independent raw material casting, full-process monitoring, and product testing to ensure quality. The company has over 80 advanced CNC machines, lathes, and machining centers, enabling full-process production from raw materials to finished products and providing personalized bearing design and customization based on customer requirements.

1. Features and Advantages of SF-1 Oilless Bearings

Feature SF-1 Oilless Bearing Traditional Lubricated Bearing
Lubrication Self-lubricating, no additional oil required Requires regular oil or grease
Friction Coefficient 0.08-0.12 (typical) 0.15-0.25
Temperature Range -40℃ to +250℃ -20℃ to +120℃
Wear Resistance High, long service life Medium, faster wear
Maintenance Frequency Low High, requires regular maintenance
Application Automation machinery, pumps, valves, wind power equipment General mechanical equipment

Note: Using SF-1 Oilless Bearings significantly reduces maintenance frequency and prevents lubrication-related failures.

2. Maintenance and Care Methods

2.1 Pre-Installation Inspection

  • Dimension and Tolerance Check: Ensure the bearing bore, shaft diameter, and length match design parameters. Tolerances should comply with ISO or GB standards.
  • Cleaning: The shaft, bore, and bearing must be free from dust, oil, and metal debris.
  • Alignment Check: Avoid misalignment between shaft and bearing bore to prevent eccentric wear.

2.2 Care During Operation

  • Avoid Overload: Maximum allowable load for SF-1 bearings is 25-35 MPa (typical for copper alloy). Long-term overload accelerates wear.
  • Temperature Monitoring: Maintain operating temperature between -40℃ and 250℃. Exceeding this may damage the bearing.
  • Dust and Contamination Protection: Avoid particles, dust, or chemicals entering the bearing surface.

2.3 Inspection and Replacement Cycle

  • Operational Checks: Inspect bearing surface wear, axial clearance, and noise every 500-1000 operating hours.
  • Wear Assessment: Replace the bearing if the inner diameter exceeds design tolerance, axial play increases, or abnormal noise occurs.
  • Replacement Cycle: Under standard load, SF-1 bearings last 3-5 times longer than traditional lubricated copper bearings.

2.4 Cleaning and Recycling

  • Surface Cleaning: Use a clean brush or compressed air to remove dust; avoid strong solvents.
  • Recycling: Copper alloy SF-1 bearings can be melted and reused, meeting environmental standards.

3. Advantages Provided by Zhejiang Shuangnuo Bearing Technology Co., Ltd.

  • Traceable Materials: Independent raw material casting with triple spectrometer checks before, during, and after furnace processing.
  • Precision Machining: Over 80 advanced CNC machines ensure dimensional accuracy and tolerance compliance.
  • Customized Solutions: Bearings designed according to machinery load, speed, and operating environment.
  • Testing and Certification: Regular testing by national agencies for mechanical and chemical properties with official reports available.

Conclusion

By following proper installation, reasonable usage, and regular inspection practices, combined with high-quality SF-1 Oilless Bearings from Zhejiang Shuangnuo Bearing Technology Co., Ltd., machinery lifespan can be significantly extended, maintenance costs reduced, and operational reliability improved.