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Help CenterOil-Impregnated Sintered Bronze Bushing With 1-Year Warranty, Mill Test Report Available
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Anping County Boli Hardware Wiremesh Products Factory — a trusted manufacturer since 1998, with annual export value of US$5 Million – US$10 Million — proudly presents our Oil-Impregnated Sintered Bronze Bushing. This high-performance bushing is engineered for applications requiring self-lubrication, low maintenance, and long service life. Each bushing is manufactured using advanced powder metallurgy technology, ensuring consistent porosity and oil retention. Backed by a 1-year warranty and accompanied by a Mill Test Report upon request, this product delivers reliability and traceability for demanding industrial uses.
Our factory is located in Hengshui, Hebei, China, and we ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan. With decades of experience, we serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. We understand the importance of precision and durability in oil-impregnated bushings, and our product is designed to meet the needs of both OEM and replacement applications.
Key Features & Technical Specifications
- Material: High-quality sintered bronze powder, offering excellent wear resistance and dimensional stability.
- Self-Lubricating Design: Oil-impregnated pores continuously release lubricant during operation, reducing friction and eliminating the need for external lubrication.
- Porosity Range: Customizable from 18% to 25% to match specific oil retention and load requirements.
- Operating Temperature: Suitable for continuous use from -20°C to +120°C (higher temperature options available upon request).
- Load Capacity: Static load up to 250 N/mm²; dynamic load up to 50 N/mm² (depending on bushing dimensions and lubrication).
- Surface Finish: Smooth inner diameter with typical Ra ≤ 1.6 μm for reduced friction.
- Dimensional Accuracy: Tolerances as tight as ISO IT7 to IT9 on inner and outer diameters.
Product Advantages & Benefits for Customers
- Extended Service Life: The oil-impregnated structure ensures continuous lubrication, reducing wear and extending bushing life compared to non-lubricated bearings.
- Low Maintenance: No need for external grease or oil lines, saving time and labor costs in equipment maintenance.
- Quiet Operation: The porous bronze matrix dampens vibration and noise, suitable for precision machinery.
- Customizable Dimensions: We can produce bushings in a wide range of diameters (5mm-200mm), lengths (10mm-300mm), and wall thicknesses per your drawings or samples.
- Quality Assurance: Each batch is tested for porosity, oil content, and dimensional accuracy. A Mill Test Report is available to provide full traceability.
- 1-Year Warranty: We stand behind our product quality. Defective bushings will be replaced or refunded within one year of purchase.
Typical Applications
| Industry | Application Examples |
|---|---|
| Automotive | Steering columns, gearbox linkages, suspension joints |
| Industrial Machinery | Conveyor rollers, textile machines, packaging equipment |
| Agricultural Equipment | Tractor linkages, harvester pivot points |
| Home Appliances | Washing machine bearings, fan motors |
Trust & Commitment
With over 24 years of manufacturing experience and an annual export value exceeding US$5 million, Anping County Boli Hardware Wiremesh Products Factory has built a reputation for reliability and quality. Our products are exported to more than 15 countries and regions, including North America, Europe, and Southeast Asia. We strictly follow ISO 9001 quality management system practices (certification available upon request). Every bushing is inspected before shipment, and we offer free samples for qualification. We are confident that our Oil-Impregnated Sintered Bronze Bushing will meet your performance expectations. Contact us today to discuss your requirements or to request a quotation. We look forward to a long-term partnership!
Frequently Asked Questions (FAQ)
Q1: What is the typical oil retention of your sintered bronze bushing?
A: The oil retention depends on the porosity level. Standard porosity is around 20%, which can hold approximately 15-20% of the bushing volume in oil. Higher oil retention levels are customizable.
Q2: Can you provide bushings with specific dimensions not listed?
A: Yes, we offer custom sizes based on your drawings or samples. Please provide inner diameter, outer diameter, length, and tolerance requirements.
Q3: What type of oil is used for impregnation?
A: We typically use high-grade mineral oil suitable for general-purpose applications. For special environments (food-grade, high temperature, etc.), we can use alternative oils upon request.
Q4: How long does the bushing last before needing re-oiling?
A: Under normal operating conditions, the oil-impregnated bushing can last hundreds to thousands of hours without re-oiling, depending on speed, load, and temperature. The self-lubricating nature reduces the need for frequent maintenance.
Q5: Do you have a minimum order quantity (MOQ)?
A: For standard sizes, the MOQ is 100 pieces. For custom sizes, the MOQ may be higher depending on tooling and production setup. Small trial orders are welcome.
Q6: Is the Mill Test Report included automatically?
A: The Mill Test Report is available upon request. It can be provided for each batch, showing chemical composition, porosity, dimensional inspection results, and oil content.
Q7: Can the bushing be used in wet or corrosive environments?
A: Sintered bronze has good corrosion resistance but is not recommended for prolonged exposure to strong acids or alkalis. For wet environments, we can apply a protective coating or use alternative materials. Please consult our technical team.
Q8: What is the warranty coverage?
A: Our 1-year warranty covers manufacturing defects, such as cracks, improper porosity, or dimensional deviations beyond tolerance. Warranty does not cover misuse or improper installation.
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