Products

For bearing-grade applications that demand long service life under dry or boundary lubrication, our 10% polyimide PTFE rod for dry bearing provides a measurable upgrade over standard PTFE. The addition of 10% polyimide filler sharply improves wear resistance, reduces cold flow under sustained load, and helps maintain close-tolerance clearance in rotating equipment such as sleeve bearings, pivots, and cam followers. We operate as a full-service 10% PI PTFE rod supplier with precision-ground round bar stock available in diameters from 6 mm to 150 mm, all produced in small to medium batch sizes with consistent batch-to-batch mechanical properties. The low friction polyimide PTFE rod grade exhibits a dry coefficient of friction between 0.05 and 0.10, which remains stable across a service temperature range of -200°C to +260°C. Because it is non-abrasive, this material is also frequently specified as a PTFE rod for soft mating surface contact where aluminum, bronze, plastic, or ceramic counterfaces must be protected from scoring and adhesive wear.

The PI filled PTFE round bar is supplied in extruded or compression-molded form and can be machined into bushings, wear rings, seal lips, valve seats, thrust washers, and custom profiles. The polyimide filler—typically 10% by weight—significantly lowers deformation under load compared with unfilled PTFE while retaining a very low coefficient of friction and broad chemical resistance. This material resists attack from most industrial solvents, acids, bases, and fuels, making it suitable for pumps, compressors, food processing equipment, semiconductor tooling, and aerospace actuators. Bars are stress-relieved to minimize warpage during machining, and they are held to tight roundness, straightness, and diameter tolerances. A dense, uniform filler dispersion ensures consistent wear behavior across the full cross-section, which reduces scrap rates in high-volume production and extends maintenance intervals in the field. Both standard and custom diameters can be supplied with abrasive-cut or saw-cut ends, and packaging is available in moisture-resistant wrapping for cleanroom or export requirements.

• 10% polyimide filled PTFE composition for improved creep resistance and wear life
• Available diameters: 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm, 75 mm, 100 mm, 125 mm, 150 mm
• Standard lengths: 300 mm, 500 mm, 1000 mm; custom lengths available on request
• Color: dark brown to black
• Continuous service temperature: -200°C to +260°C (-328°F to +500°F)
• Dry coefficient of friction: 0.05 – 0.10
• Compressive strength at 10% deformation: 12 – 15 MPa
• Hardness: 58 – 62 Shore D
• Compliance options: FDA, RoHS, REACH, and aerospace-specific lot traceability
• Machining allowances available for OD grinding, centerless grinding, and CNC turning