PTFE balls are versatile components used in various industries due to their chemical resistance, low friction, and thermal stability. They come in different grades, primarily Virgin and Ultra-Modified, each tailored for specific applications. Virgin PTFE balls are made from pure PTFE, offering excellent chemical resistance and electrical insulation, while Ultra-Modified PTFE balls incorporate fillers to enhance mechanical properties like wear resistance and load-bearing capacity. These balls are available in sizes from 1/8 inch to 8 inches, with tolerances varying based on size and precision requirements. Understanding these grades and specifications helps purchasers select the right PTFE balls for their needs.
Key Points Explained:
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Grades of PTFE Balls
- Virgin PTFE: Pure PTFE without additives, ideal for applications requiring high chemical resistance and electrical insulation.
- Ultra-Modified PTFE: Contains fillers (e.g., glass fibers, carbon) to improve wear resistance, thermal conductivity, and mechanical strength, suitable for high-stress environments.
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Size Range and Availability
- PTFE balls are available in diameters from 1/8 inch to 8 inches.
- Stock sizes may vary, but large quantities can be custom-produced to meet specific requirements.
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Tolerances
- Standard diameter tolerance is ±5%, with precision tolerances specified per item.
- Larger balls (e.g., >1 inch) typically have a tolerance of ±0.005 inch and a TIR (Total Indicator Reading) of 0.005 inch max.
- Smaller balls can achieve tighter tolerances, with a TIR of 0.003 inch max.
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Applications
- Virgin PTFE is used in chemical processing, electrical components, and food-grade applications.
- Ultra-Modified PTFE is preferred for mechanical seals, bearings, and high-wear environments.
For more details on ptfe balls, explore their properties and applications to make an informed purchase decision.
Summary Table:
| Grade | Key Properties | Common Applications |
|---|---|---|
| Virgin PTFE | High chemical resistance, electrical insulation | Chemical processing, electrical components, food-grade |
| Ultra-Modified PTFE | Enhanced wear resistance, mechanical strength | Mechanical seals, bearings, high-wear environments |
| Size Range | Tolerances | Precision Notes |
|---|---|---|
| 1/8 inch to 8 inches | ±5% standard, tighter for smaller sizes | Larger balls: ±0.005" TIR; smaller: 0.003" TIR max |
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