Ningbo XiaYi Electromechanical Technology Co.,Ltd.
| Material | steel + bronze + PTFE |
| Delivery Time | Normally 10 days, according to the quantity |
| Type | Sleeve or flange |
| Payment Terms | T/T,L/C |
| Inner layer | PTFE |
| Application | Car shock absorber |
| Coating | copper/tin plating |
| Lubricating | graphite, carbon, oilless |
| Supply Ability | 50,000pcs per month |
| Product Name | BUSHING |
| Model No. | DU or DX |
| Packaging Details | Packed in carton firstly and then reinforced with wooden case for outer packing |
| Model Number | 2520DU |
| Brand Name | XIAYI |
| Certification | IATF16949:2016 |
| Place of Origin | Ningbo, China |
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Product Specification
| Material | steel + bronze + PTFE | Delivery Time | Normally 10 days, according to the quantity |
| Type | Sleeve or flange | Payment Terms | T/T,L/C |
| Inner layer | PTFE | Application | Car shock absorber |
| Coating | copper/tin plating | Lubricating | graphite, carbon, oilless |
| Supply Ability | 50,000pcs per month | Product Name | BUSHING |
| Model No. | DU or DX | Packaging Details | Packed in carton firstly and then reinforced with wooden case for outer packing |
| Model Number | 2520DU | Brand Name | XIAYI |
| Certification | IATF16949:2016 | Place of Origin | Ningbo, China |
DU Bush is made of three layer composite material. This type of self lubricating bearing is also called DU Bushes, DU Bearing, DU bushing bearing, DU sleeve bushing, PTFE bushing Bearing, PTFE coated bearing bushing, PAP P10 Bushing bearing and etc.
Material SpecificationsMaterial | Steel backing | Steel + Sintered Bronze powder + PTFE + Pb + Polymer |
Bronze backing | Bronze + Sintered Bronze powder + PTFE + Pb + Polymer | |
Stainless steel | S.S .+ Sintered Bronze powder + PTFE + Pb + Polymer | |
Stainless steel | Stainless Steel + PTFE +Polymer | |
Pb Free (ROHS) | All above types without Pb available |
Load capacity | Static load | 250N/mm2 |
Dynamic load | 140 N/mm2 | |
Oscillating | 60 N/mm2 | |
Speed Limit | Oil lubricating | 5m/s |
Dry friction | 2.5m/s | |
PV value limit | Oil lubricating | 50N/mm2.m/s |
Dry friction | 3.6 N/mm2.m/s | |
Friction coefficient | 0.04-0.20 | |
Working temperature | -195~+280°C |
Performance index | data | |
Max load capacity | Static load | 250N/mm2 |
Dynamic load | 140N/mm2 | |
Max sliding speed | Dry friction | 2.5m/s |
Oil lubrication | 5.0m/s | |
Max PV value limit | Dry friction | 3.6N/mm2 m/s |
Oil lubrication | 50N/mm2 m/s | |
Friction coefficient | Dry friction | 0.08-0.20 |
Oil lubrication | 0.02-0.07 | |
Working temperature | -195\u2103~280\u2103 | |
Thermal conductivity | 42W/mk | |
Coefficient of thermal expansion | 11*10-6/k | |
In automotive suspension systems, conventional bushings often face premature wear due to high-frequency oscillation, inadequate lubrication, and exposure to extreme temperatures. These issues lead to increased maintenance downtime, unexpected component replacement costs, and compromised vehicle handling performance. Our DU self-lubricating bushing is engineered to directly resolve these critical operational concerns.
Key benefits engineered for your application:
Printing presses, textile machines, hydraulic carrier, tobacco machine, medical machinery, micro-motor, automobiles and motorcycles
Packaging & DeliveryPackaging Detail: Dry bearing bushing Standard package or according to your requirements
Standard package:
Delivery Detail: 10-25 days
Frequently Asked Questions Q: What is the difference between DU bushing and traditional bronze bushings?DU bushings feature a three-layer composite structure with a PTFE-based self-lubricating inner layer, which eliminates the need for regular grease lubrication. Traditional bronze bushings require continuous external lubrication and typically have higher friction coefficients, leading to more frequent maintenance and shorter service intervals.
Q: Can DU bushings operate in dry running conditions?Yes, DU bushings are specifically designed for dry running applications. The PTFE inner layer provides excellent self-lubricating properties with a friction coefficient as low as 0.04, enabling reliable operation without external lubrication at speeds up to 2.5m/s under dry friction conditions.
Q: What is the minimum order quantity and typical lead time?The minimum order quantity is 500 pieces. Typical delivery time is 10-25 days depending on order specifications and quantity. Custom dimensions are available upon request with engineering drawing review.
Q: Are ROHS-compliant (lead-free) versions available?Yes, all material backing types (steel, bronze, stainless steel) are available in lead-free variants that comply with ROHS environmental standards. Please specify your compliance requirements when placing an order.
Q: What certifications does this product hold?This product is manufactured under IATF 16949:2016 certified quality management system, ensuring automotive-grade production standards, full material traceability, and consistent quality across all production batches.
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Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
1500000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Founded in 2006 and headquartered in the strategic port city of Ningbo, China, XIAYI is a premier high-tech manufacturer specializing in the research, development, and production of precision shock absorber components and automated assembly equipment. With nearly two decades of indust... Founded in 2006 and headquartered in the strategic port city of Ningbo, China, XIAYI is a premier high-tech manufacturer specializing in the research, development, and production of precision shock absorber components and automated assembly equipment. With nearly two decades of indust...
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