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Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications
Specifications
Model Number :
2520DU
Material :
steel + bronze + PTFE
MOQ :
500pcs
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
Price :
negotiation
Coating :
copper/tin plating
Lubricating :
graphite, carbon, oilless
Supply Ability :
50,000pcs per month
Product Name :
BUSHING
Brand Name :
XIAYI
Model No. :
DU or DX
Certification :
IATF16949:2016
Packaging Details :
Packed in carton firstly and then reinforced with wooden case for outer packing
Place of Origin :
Ningbo, China
Description
Self Lubricating DU Bushing for Automotive Suspension Applications Product Overview

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 Specifications

Material

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

Performance Parameters

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

Technical Data

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

Common Industry Challenges We Address

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:

Self-lubricating PTFE layer eliminates the need for external grease maintenance, reducing long-term service costs
Exceptional load capacity (up to 250N/mm² static) ensures reliable performance under continuous heavy-duty operation
Wide operating temperature range (-195°C to +280°C) maintains structural integrity in extreme environments
Low friction coefficient (0.04-0.20) minimizes energy loss and heat generation during oscillation
Multiple material backing options available to match your specific corrosion resistance requirements
Competitive Advantage
Rich experience for producing different kinds of bushes
Plenty machine can offer production capacity
Strict quality control plan for the whole production line
Testing for every step to assure the quality
Clean and tidy workshop
Applications

Printing presses, textile machines, hydraulic carrier, tobacco machine, medical machinery, micro-motor, automobiles and motorcycles

Packaging & Delivery

Packaging Detail: Dry bearing bushing Standard package or according to your requirements

Standard package:

Double layers plastic bag package
Thin cartons
Then in big wooden case.

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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Self Lubricating DU Bushing for Automotive Suspension Applications

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Product Detail
Model Number :
2520DU
Material :
steel + bronze + PTFE
MOQ :
500pcs
Delivery Time :
Normally 10 days, according to the quantity
Type :
Sleeve or flange
Payment Terms :
T/T,L/C
Contact Supplier
Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications
Self Lubricating DU Bushing for Automotive Suspension Applications

Ningbo XiaYi Electromechanical Technology Co.,Ltd.

Verified Supplier
12 Years
zhejiang, ningbo
Since 2006
Business Type :
Manufacturer
Main Products :
Shock Absorber Parts, Shock Absorber Piston, Banded Piston
Total Annual :
1500000-5000000
Employee Number :
100~200
Certification Level :
Verified Supplier
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