Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of metal polymer composite plain bearing customized anti vibrations flanged du bush and bushings automotive in China. If you're going to buy metal polymer composite plain bearing customized anti vibrations flanged du bush and bushings automotive made in China, welcome to get more information from our factory. We also accept customized orders.
Product Description
Automotive Bushing: Industry Knowledge Overview
Metal Polymer Composite Plain Bearing Customized Anti Vibrations Flanged DU Bush And Bushings Automotive
1. Terminology & Nomenclature
|
Chinese Term |
English Equivalent |
Notes |
|---|---|---|
|
衬套 / 胶套 |
Bushing / Bush |
Commonly referred to as "Cup Shims" in HK/Taiwan regions. |
|
悬挂衬套 |
Suspension Bushing |
Most common application category. |
|
机脚胶 / 引擎悬置 |
Engine Mount (contains bushing structure) |
A specialized sub-category. |
|
聚氨酯衬套 |
Polyurethane Bushing (PU Bushing) |
Used in performance and aftermarket segments. |
2. Structural Types (Industry Classification)
Metal Polymer Composite Plain Bearing Customized Anti Vibrations Flanged DU Bush And Bushings Automotive
1️⃣ Rubber-to-Metal Bonded Bushings (Most Common)
Structure: Inner/outer metal sleeves + vulcanized rubber.
Characteristics: Cost-effective; excellent NVH (Noise, Vibration, Harshness) performance.
Application: OE control arms, stabilizer bars, and subframes on passenger vehicles.
2️⃣ Hydraulic Bushings
Structure: Internal fluid chambers + flow channels (orifices).
Characteristics: Soft under low-frequency/high-amplitude inputs; stiff under high-frequency inputs. Enhances ride comfort.
Application: Powertrain mounts; premium vehicle subframe connections.
3️⃣ Polyurethane (PU) Bushings
Material: Polyurethane elastomer.
Characteristics: High durability; sharper road feedback; firmer ride; slightly higher noise transmission.
Application: Performance cars, off-road vehicles, motorsport aftermarket.
4️⃣ Plain Bearings (Non-Rubber)
Examples: Bronze bushings, Steel-backed PTFE composite bushings.
Function: Reduce friction without damping vibrations.
Application: Steering knuckles, pivot points on commercial vehicles.
3. Key Design & Performance Metrics (OEM & Supplier Perspective)
Stiffness Characteristics (K-Curve): Radial, axial, and torsional stiffness curves; critical for balancing handling and comfort.
Damping Properties: Dynamic hysteresis angle and loss factor.
Fatigue Life: Endurance under combined thermal cycling and dynamic loads (typically targeting 150,000–240,000 km vehicle life).
Environmental Resistance: Oil resistance, ozone resistance, and temperature range stability (-40°C to +120°C).
Bond Strength: Adhesion strength between rubber and metal (key QC checkpoint).
4. Typical Application Areas (OE Perspective)
|
System |
Typical Location |
|---|---|
|
Front Suspension |
Front/Rear Lower Arm Bushings, Upper Control Arm Bushings |
|
Rear Suspension |
Trailing Arm Bushings, Lateral Link Bushings, Subframe Bushings |
|
Stabilizer Bar |
Stabilizer Bar D-Bushings (Orientation specific) |
|
Powertrain |
Engine & Transmission Mounts (Hydraulic or Rubber) |
|
Body/Chassis |
Exhaust Mounts, Steering Gear Mount Bushings |
⚠️ Orientation Matters: Installation direction is usually specified (e.g., arrow pointing forward). Incorrect orientation compromises load distribution and service life.
5. Aftermarket & Channel Insights
Metal Polymer Composite Plain Bearing Customized Anti Vibrations Flanged DU Bush And Bushings Automotive
✅ Bushing Service vs. Assembly Replacement
Cost-Effective Repair: Pressing out the old bushing and pressing in a new one (common on European vehicles).
Labor-Saving/Warranty Repair: Replacing the entire control arm assembly (common on Japanese/Korean vehicles).
✅ Brand Hierarchy
OE Suppliers: Continental (Vibracoustic), Hutchinson, Sumitomo Riko, Zhuzhou Times New Material Technology (TMT).
Premium Aftermarket: Lemförder, TRW, Moog, Febi Bilstein, Corteco.
Performance PU Brands: Powerflex, SuperPro.
✅ Common Failure Modes
Rubber cracking / Delamination (bond failure).
Permanent deformation / Collapse → leads to wheel alignment drift.
Hardening due to aging → squeaking noises and harsh ride quality.
6. Assembly & Process Considerations (Critical)
No Oil/Grease: Keep rubber surfaces clean during installation (contaminants degrade rubber).
Pre-load Condition: Final tightening must be performed at "Full Vehicle Load Height" (wheels loaded/suspended).
Press Fit Only: Hydraulic bushings must never be hammered; use dedicated pressing tools.
Post-Installation Check: Four-Wheel Alignment is mandatory after suspension bushing replacement.
7. Industry Trends (Brief)
Integration of Active Hydraulic Damping to counteract high-frequency motor vibrations in EVs.
Development of advanced rubber compounds with low creep and higher heat resistance.
Stricter NVH requirements for EVs (due to the absence of engine masking noise).
|
Material |
EPDM, NBR, SBR, NR, Silicone(VMQ), Neoprene(CR), HNBR, XNBR, FKM, FFKM, FVMQ, FLAS, PTFE, PU, ECO, IIR, ACR, etc... |
|
Certificate |
ISO 90001:2008, TS16949, FDA, REACH, ROHS, SGS |
|
Drawing Format |
.stp / .step / .igs /.stl /.dwg / .pdf |
|
Parameters |
Inch, centimeter, millimeter, etc. |
|
Function |
Industrial parts /daily supply / Automotive/ Medical device, etc.. |
| MOQ | 100-1000pcs |
| Loading port | Hangzhou, Shanghai, Ningbo or as required |
| Shipment | By air mail, by sea, by express like DHL, Fedex, UPS, TNT, EMS |
| Payment terms | L/C, T/T, WEST cUNION, MONEYGRAM, PAYPAL, ESCROW |
| Manufacturing | ODM & OEM Service |
| Sample lead time | 3-15 days |
| More Parts | Grommet, sleeve, feet, gasket, wheel, bellow, cap, dust cover, pad, washer, Strip, plug, stopper, grip, seal, bushing, bumper, blocks, and anti vibration mounts etc. |
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