High Temperature Bushings: Choosing the Right Plain Bearing Bushing Material

High Temperature Bushings: Choosing the Right Plain Bearing Bushing Material

C93200 Bronze, Bearing Bronze Bushings, Flanged Bushings, Custom Bronze Parts, Air Impact Wrench Components

High Temperature Bushings: Choosing the Right Plain Bearing Bushing Material

When selecting a plain bearing bushing for high-temperature applications, material choice is critical. The wrong material can lead to premature wear, increased friction, or even catastrophic failure. To help you make an informed decision, we’ll break down the best high-temperature bushing materials, compare their properties, and provide easy-to-understand charts and tables.

Key Properties of High-Temperature Bushing Materials

A good plain bearing bushing for high-temperature environments must have:
✅ High thermal stability – Resists deformation at elevated temperatures
✅ Low friction coefficient – Reduces wear and energy loss
✅ Good wear resistance – Extends service life
✅ Corrosion resistance – Withstands harsh environments
✅ Load capacity – Handles dynamic and static forces

Comparison of High-Temperature Bushing Materials

Below is a comparison table of common bushing materials and their temperature limits:

Material Max Temp (°C) Friction Coefficient Load Capacity Key Advantages Limitations
Bronze (Oil-Impregnated) 250°C 0.10 – 0.25 High Self-lubricating, durable Limited at extreme temps
Graphite-Metal 500°C 0.10 – 0.20 Medium Excellent dry lubrication Brittle under impact
PTFE 260°C 0.04 – 0.10 Low Ultra-low friction Soft, poor wear at high loads
Metal-Polymer Composites 300°C 0.08 – 0.15 Medium-High Balanced performance Limited in extreme heat

Which High-Temperature Bushing Material Should You Choose?

1. Moderate Heat (Up to 250°C)

  • Best Choice: Bronze bushings (oil-impregnated)
  • Why? Self-lubricating, handles high loads, cost-effective.

2. High Heat (250°C – 500°C)

  • Best Choice: Graphite-metal bushings
  • Why? Solid lubricant, handles dry running, good for furnaces & ovens.

3. Extreme Heat (500°C+)

  • Best Choice: Ceramic bushings
  • Why? Withstands ultra-high temps, but requires lubrication for best performance.

Performance Comparison

Graphite-metal performs well in heat, while PTFE is better for low friction.

a graphite/metal alloy, is ideally suited to applications where temperatures are too high to permit the use of oil or other lubricants.

Key Takeaways for Selecting High-Temp Bushings

✔ Bronze bushings are ideal for moderate heat and high-load applications.
✔ Graphite-metal excels in dry, high-heat environments (e.g., industrial ovens).
✔ Ceramic bushings are best for extreme temperatures but may need lubrication.
✔ PTFE & polymers offer low friction but have lower heat resistance.

Conclusion

Choosing the right high-temperature bushing material depends on your operating conditions. Use our charts and tables to compare properties and make an informed decision.

🔗 Need a custom solution? Contact our engineers for expert guidance on the best bushing for your high-temperature application!

High Temperature Bronze Bushings: Material Grades (EN1982 vs. ASTM B505) – A Complete Guide

When selecting bronze bushings for high-temperature applications, understanding material standards is crucial. Two key specifications—EN1982 (European) and ASTM B505 (American)—define bronze alloy grades for bushings. This guide compares these standards, highlights key alloys, and provides easy-to-reference tables and charts for optimal selection.

Why Bronze Bushings for High Temperatures?

Bronze is a top choice for high-temperature plain bearings due to:
✅ Excellent thermal conductivity – Dissipates heat efficiently
✅ High load capacity – Handles heavy dynamic/static loads
✅ Wear resistance – Long service life under friction
✅ Corrosion resistance – Performs well in harsh environments
✅ Self-lubricating options – Oil-impregnated bronzes reduce maintenance

Bearing and Bushings for High Temperature Applications

Plain bearing bushing material for high-temperature environments. 🚀 Oil Free Bushings : Environment Heat Resistant. Oli Free Bearings, High Temperature. Oil-Free Leader Bushings For High Temperature Use -Straight Type/Special Copper Alloy

Choose from our selection of high-temperature bushings, including bronze bushing products in a wide range of materials and sizes. Fast Delivery.

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Bronze Bushing Alloy Grades: EN1982 vs. ASTM B505

1. EN1982 Standard (European)

Common bronze bushing alloys under EN1982:

Alloy Composition Max Temp (°C) Key Properties
CC491K (CuSn12) 88% Cu, 12% Sn 250°C High wear resistance, good machinability
CC492K (CuSn10Pb10) 80% Cu, 10% Sn, 10% Pb 200°C Excellent anti-seizure properties
CC493K (CuSn8Pb15) 77% Cu, 8% Sn, 15% Pb 180°C Superior dry-running performance

2. ASTM B505 Standard (American)

Popular bronze bushing alloys under ASTM B505:

Alloy Composition Max Temp (°C) Key Properties
C93200 (SAE 660) 83% Cu, 7% Sn, 7% Pb, 3% Zn 230°C General-purpose, excellent machinability
C95400 (Aluminum Bronze) 85% Cu, 11% Al, 4% Fe 400°C Extreme heat & corrosion resistance
C86300 (Manganese Bronze) 63% Cu, 25% Zn, 6% Mn, 4% Al 300°C High strength, impact-resistant

Comparison Chart: EN1982 vs. ASTM B505 Bronze Bushings

Property EN1982 (CC491K) ASTM B505 (C93200) Best for High Temp?
Max Temp 250°C 230°C EN1982 (CC491K)
Wear Resistance Excellent Good EN1982 (CC491K)
Corrosion Resistance Good Moderate EN1982 (CC491K)
Load Capacity High High Tie
Cost Moderate Lower ASTM B505 (C93200)

Conclusion:

  • EN1982 CC491K (CuSn12) is better for higher temperatures and wear resistance.
  • ASTM B505 C93200 (SAE 660) is more cost-effective for moderate heat applications.

Best Bronze Bushing Alloy for High-Temperature Applications

1. Moderate Heat (Up to 250°C)

  • Best Choice: EN1982 CC491K (CuSn12)
  • Why? Superior wear resistance, handles higher temps than C93200.

2. Extreme Heat (Up to 400°C)

  • Best Choice: ASTM B505 C95400 (Aluminum Bronze)
  • Why? Exceptional heat & corrosion resistance, ideal for heavy-duty industrial use.

3. Cost-Effective General Use (Up to 230°C)

  • Best Choice: ASTM B505 C93200 (SAE 660)
  • Why? Affordable, widely available, good all-around performance.

Performance Graph: Temperature vs. Wear Resistance

  • C95400 (Aluminum Bronze) outperforms at 400°C+ but is more expensive.
  • CC491K (CuSn12) balances heat resistance and cost.

Key Takeaways

✔ EN1982 CC491K (CuSn12) is ideal for high-temp, high-wear applications.
✔ ASTM B505 C95400 is best for extreme heat (400°C+).
✔ C93200 (SAE 660) is a budget-friendly option for moderate temps.

Final Recommendation

For high-temperature bronze bushings, match the alloy to your operating conditions:

  • Standard heat (200-250°C)? → EN1982 CC491K or ASTM C93200
  • Extreme heat (400°C+)? → ASTM C95400 (Aluminum Bronze)

🔗 Need help selecting the right bushing material? Contact our experts for a custom solution!

  • High temperature bronze bushings
  • EN1982 vs ASTM B505 bronze
  • Bronze bushing material grades
  • CuSn12 vs SAE 660 bushings
  • Aluminum bronze bushing
  • Best bronze alloy for bushings