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FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
Specifications
Model Number :
Sinter rod guide
Hardness :
HRB70-90
Supply Ability :
10,000pcs per month
Product Name :
rod guide
Material :
FC-0205 or 0208
Payment Terms :
T/T,Western Union,L/C
Application :
shock absorber
working temperature :
high
Price :
negotiation
Service :
OEM
MOQ :
500pcs
Delivery Time :
15-30 days for new samples
Color :
Black
Place of Origin :
Ningbo, China
Packaging Details :
Standard exporting package
Certification :
IATF16949:2016
Brand Name :
XIAYI
Mold time :
25 days
Description
Product Overview

The FC-0208 Sintered Guide Assembly is a high-precision shock absorber component engineered for hydraulic damper systems in automotive and motorcycle applications. Manufactured through advanced powder metallurgy (PM) sintering technology, this rod guide integrates a DU plain bearing and a PTFE ring to deliver exceptional wear resistance, low friction coefficients, and extended service intervals. The FC-0208 material composition offers an optimal balance of structural strength, dimensional stability, and cost-efficiency - making it the preferred choice for OEM and Tier-1 suspension programs worldwide.

Each guide assembly undergoes rigorous quality control including sintering density verification, hardness testing, and precision dimensional inspection. With IATF 16949:2016 certified manufacturing processes, every unit meets the stringent demands of modern vehicle suspension systems.

Technical Specifications
TypeGuide
NamePowder Metal Piston for Auto and Motor Bicycle Shock Absorbers
ApplicationAutomobile and Motor Bicycles
MaterialFC-0205 / FC-0208
HardnessHRB 70-90 (HRC 30 MIN)
Technology AdoptedSintered Metal Technology and Process
Weight89 g
Key Features and Benefits DU Bushing Integration
  • Self-Lubricating Performance: The bonded PTFE layer on the DU bushing eliminates the need for external lubrication, reducing maintenance frequency and total cost of ownership for end-users.
  • Low-Friction Operation: Coefficient of friction as low as 0.05-0.10 under dry conditions, ensuring smooth rod movement and minimal stiction during damper cycling.
  • Wide Temperature Range: Effective operation from -40C to +120C, suitable for extreme climate conditions and high-temperature engine-bay environments.
Powder Metallurgy Advantages
  • Material Efficiency over 97%: Near-net-shape compaction achieves industry-leading material utilization, significantly reducing waste compared to conventional machining.
  • Consistent Batch Quality: Once compaction tooling and sintering parameters are established, PM delivers exceptional batch-to-batch uniformity - ideal for high-volume serial production programs.
  • Complex Geometry Capability: Multi-level stepped profiles, internal undercuts, and non-circular bores can be formed directly during compaction, eliminating costly secondary operations.
  • Controlled Porosity: Oil-impregnated porosity (12-18% by volume) provides embedded lubrication reserves, extending operational life under boundary lubrication conditions.
Manufacturing Process
  1. Mixing: Elemental and pre-alloyed powders blended to precise FC-0208 chemistry specifications.
  2. Compacting: High-tonnage mechanical and hydraulic presses (50T-800T) form green compacts to near-net shape.
  3. Sintering: Controlled-atmosphere furnaces bond powder particles at temperatures up to 1,120C, achieving target density and mechanical properties.
  4. Resizing / Calibration: Secondary coining operation ensures tight dimensional tolerances (typically IT7-IT8 grade).
  5. Cleaning and Vacuum Oiling: Ultrasonic cleaning removes all surface contaminants; vacuum oil impregnation fills interconnected porosity.
  6. Final Inspection and Packing: 100% dimensional verification on CTQ features before standard export packaging.
Manufacturing Capabilities
EquipmentSpecification
Auto Mechanical Press50T, 100T, 140T
Hydraulic Press100T, 315T, 600T, 800T
Sinter FurnacesIncluding one Sinter-Hardening Furnace
Heat TreatmentCarbonitriding Quenching, High-Frequency Quenching
Surface TreatmentUltrasonic Cleaning, Auto De-Burring
In-House ToolingEDM, Wire Cutting Machine
MachiningMachine Center, CNC Milling, CNC Lathe, Two-End Lapper
Quality Testing Capabilities
Test EquipmentPurpose
Carbon Sulfur DeterminatorVerification of chemical composition and carbon/sulfur content
Metallurgical MicroscopeMicrostructure evaluation, porosity distribution, and phase analysis
Hydraulic Universal Material TesterCrushing strength, tensile properties, and radial crush testing
Hardness TestersApparent hardness (HRB/HRC) and microhardness traverse
Pneumatic Measuring InstrumentHigh-precision bore and OD measurement with sub-micron resolution
Measuring ProjectorNon-contact profile and contour inspection for complex geometries
Gear Testing InstrumentGear tooth profile, lead, and pitch verification
Electrical Profile MeterSurface roughness (Ra, Rz) and waviness evaluation
Application Industries
IndustryTypical Components
AutomotiveShock absorber rod guides, piston assemblies, valve bodies, spring seats
MotorcycleFront fork guide bushings, rear damper pistons, rebound spacers
Pump SystemsWear plates, thrust washers, seal rings, cylinder liners
LocomotivePrimary/secondary suspension guide components, damping valve bodies
General MachineryStructural sintered parts, bearing retainers, spacer sleeves, timing pulleys
ToolingPowder metallurgy inserts, wear-resistant guides, precision fixtures
Competitive Advantages
AdvantageDetails
Quality GuaranteeElectronic balance for density verification; dedicated test equipment for crushing strength; QC and PQC teams ensuring tight tolerances and accurate dimensions on every production lot
Design CapabilityIn-house engineering team develops various models of gears, bearings, bushings, and structural components; capable of manufacturing from customer-provided drawings or physical samples
CertificationsIATF 16949:2016 certified for automotive quality management; full PPAP Level 3 documentation available on request
Flexible MOQMinimum order quantity starting from 500 pcs, with competitive pricing for medium-to-high-volume programs
Global SupplyEstablished export channels to Korea, America, and Japan; standard export packaging with customized options available
Frequently Asked Questions
Q: What is the difference between FC-0205 and FC-0208 material grades for this guide assembly?
FC-0205 and FC-0208 are both iron-copper-carbon powder metallurgy grades. FC-0208 contains a higher copper content (typically 7.0-9.0% vs. 4.0-6.0% for FC-0205), resulting in improved strength, better wear resistance, and higher dimensional stability after sintering. For demanding shock absorber applications with high cyclic loads, we generally recommend FC-0208. Both grades are available, and our engineering team can assist with material selection based on your specific operating parameters.
Q: How does the DU bushing improve performance compared to a standard plain bearing?
The DU bushing consists of a steel backing, a porous bronze sintered interlayer, and a PTFE-lead bearing surface. This construction provides three key advantages: (1) the PTFE surface delivers self-lubricating, low-friction operation without external grease; (2) the bronze interlayer provides high load capacity and excellent thermal conductivity; and (3) the steel backing ensures structural rigidity and press-fit retention in the guide assembly bore. Compared to standard bronze or steel bushings, DU bushings offer longer maintenance-free service life and better performance under boundary and mixed lubrication conditions.
Q: What is your typical lead time for sample orders and bulk production?
For new sample development (including tooling design and manufacturing), standard lead time is 15-30 days. For repeat production orders using existing tooling, delivery is typically 20-35 days depending on order volume and current production scheduling. Rush orders can be accommodated with prior arrangement. Mould fabrication alone requires approximately 25 days for new custom geometries.
Q: Can you produce guide assemblies according to customer-specific drawings or samples?
Yes, absolutely. Our in-house tooling department (EDM, wire cutting, CNC) and experienced application engineering team can develop custom guide assemblies based on your 2D drawings, 3D CAD models (STEP/IGES), or physical reference samples. We also provide Design-for-Powder Metallurgy (DFPM) feedback to optimize your design for PM production, potentially reducing tooling costs and improving part performance.
Q: What quality documentation do you provide with each shipment?
Every production lot is accompanied by a detailed inspection report including: dimensional verification results (CMM or pneumatic measurement), material chemistry certification (OES), hardness test data (HRB/HRC), and visual inspection records. For new program launches, we provide full PPAP Level 3 documentation including PFMEA, Control Plan, MSA studies, and initial process capability studies (Ppk/Cpk at least 1.67). Certificates of conformance and material test certificates are standard with every shipment.
Q: What payment terms and shipping methods do you support?
We accept T/T (bank transfer), Western Union, and L/C (Letter of Credit). For international shipments, we use sea freight (FOB/CIF), air freight, and express courier services (DHL, FedEx, UPS) depending on order urgency and volume. Standard export packaging is used for all shipments; custom labeling and palletization are available for large-volume orders upon request.
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FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology

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Product Detail
Model Number :
Sinter rod guide
Hardness :
HRB70-90
Supply Ability :
10,000pcs per month
Product Name :
rod guide
Material :
FC-0205 or 0208
Payment Terms :
T/T,Western Union,L/C
Contact Supplier
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology
FC-0208 Sintered Guide Assembly Shock Absorber Piston Parts with DU Bushing Technology

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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