Wrapped Bronze Bearings , CuSn8 With Graphite, high-load and low-speed
CuSn8 Graphite-Reinforced Bronze Bearings – High-Load, Low-Maintenance Solutions
Meta Title: CuSn8 Graphite Bronze Bearings | VIIPLUS – High-Performance, Self-Lubricating Bearings for Heavy Machinery
Meta Description: Discover VIIPLUS’s CuSn8 Wrapped Bronze Bearings with graphite reinforcement – engineered for high-load, low-speed applications. Corrosion-resistant, RoHS-compliant, and ideal for harsh environments. Request a quote today!
Introduction: Powering Durability in Demanding Industrial Environments
At VIIPLUS, we redefine reliability with CuSn8 Graphite-Reinforced Bronze Bearings – precision-engineered components built to excel in high-load, low-speed applications. Combining the superior strength of CuSn8 tin-bronze alloy with graphite’s self-lubricating properties, these bearings deliver unmatched wear resistance, reduced friction, and extended service life. Ideal for construction, marine, and automotive industries, VIIPLUS bearings ensure your machinery thrives even in the harshest conditions.
Why VIIPLUS CuSn8 Graphite Bronze Bearings? Key Features
1. CuSn8 Bronze Alloy + Graphite Reinforcement
- High Load Capacity: Supports static loads up to 120 N/mm² and dynamic loads of 40 N/mm².
- Self-Lubricating Graphite: Reduces friction by 30%, minimizing wear and eliminating frequent lubrication needs.
- Corrosion Resistance: Thrives in moisture-rich, abrasive, or chemically aggressive environments.
2. Wrapped Design for Enhanced Protection
- Contaminant Resistance: Shielded construction prevents debris ingress, extending component lifespan.
- Secure Installation: Flanged and cylindrical variants (e.g., FB092, WB700) ensure stable fitment in H7 tolerance housings.
3. Versatile Applications
- Heavy Machinery: Excavators, cranes, and winches.
- Automotive & Transport: Trucks, tractors, and trailer axles.
- Marine & Underwater: Pelletizer machines and submersible equipment.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | CuSn8 (91.3% Cu, 8.5% Sn, 0.2% P) + Graphite |
| Tolerances | Housing: H7 |
| Standards | RoHS Compliant, ISO 3547 |
| Temperature Range | -100°C to +200°C |
| Lubrication | Oil/grease-compatible diamond pockets |
Applications: Where VIIPLUS Bearings Excel
- Construction: Hydraulic systems, bulldozers, and drilling rigs.
- Material Handling: Conveyors, lifts, and winches.
- Marine: Underwater machinery requiring corrosion resistance.
- Automotive: Transmission shafts and chassis components.
Benefits Over Traditional Bearings
- Low Maintenance: Graphite eliminates frequent relubrication, reducing downtime.
- Cost Efficiency: Replace cast copper sleeves with lightweight, high-density alternatives.
- Debris Resistance: Diamond oil pockets trap contaminants, protecting shafts.
- Custom Solutions: Thin-walled designs (1–2.5 mm) for compact machinery.
Why Choose VIIPLUS?
- Global Expertise: Trusted by OEMs in 50+ countries for rugged industrial solutions.
- Tailored Designs: Custom graphite-infused variants, seals, or grooves on request.
- Rapid Delivery: Standard sizes (e.g., FB090, WB802) ship within 24 hours.
- Quality Assurance: Rigorous testing for load capacity, wear, and compliance.
Installation & Care
- Press-Fit Assembly: Secure into H7 tolerance housings for optimal alignment.
- Shaft Compatibility: Use hardened steel shafts (>210 HB) with surface roughness < Ra 1.6.
- Lubrication: Initial greasing enhances startup performance.
Conclusion: Elevate Performance with VIIPLUS Precision
VIIPLUS CuSn8 Graphite Bronze Bearings are engineered to tackle extreme industrial challenges, offering durability, self-lubrication, and corrosion resistance. Whether in construction, marine, or automotive sectors, these bearings deliver reduced operational costs, longer lifespan, and peak efficiency.
Transform Your Machinery Today!
[Contact VIIPLUS] for a custom quote or explore our catalog of ISO-certified bronze bearings. Let our experts craft solutions tailored to your needs.
Keywords: CuSn8 graphite bearings, self-lubricating bronze bushings, high-load bearings, RoHS-compliant bushings, VIIPLUS industrial solutions
Technical data
Performance |
Data |
|
Max.Load |
Staic load |
120N/mm² |
Dynamic load |
40N/mm² |
|
Max. speed |
2.5m/s |
|
Max. PV |
2.8N/mm² ・m/s |
|
Friction coefficient (μ) |
0.05~0.25 |
|
Operating temperature |
-100℃~+200℃ |
|
Heat conductivity |
60Wim・K |
|
Coefficient of thermal expansion |
15×-6/K |
|
Data Parameter
Standard Dia. |
O.D.Size |
Housing Bore |
I.D.Size |
Matching Shaft Diameter |
|---|---|---|---|---|
10~18 |
+0.065
|
+0.018
|
+0.046
|
- 0.016
|
18~30 |
+0.075
|
+0.021
|
+0.052
|
- 0.020
|
30~50 |
+0.085
|
+0.025
|
+0.062
|
- 0.025
|
50~80 |
+0.100
|
+0.030
|
+0.074
|
- 0.030
|
80~120 |
+0.120
|
+0.035
|
+0.087
|
- 0.036
|
120~180 |
+0.170
|
+0.400
|
+0.100
|
- 0.043
|
180~250 |
+0.210
|
+0.046
|
+0.115
|
- 0.050
|
250~315 |
+0.260
|
+0.052
|
+0.130
|
- 0.056
|
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