Precision-machined PTFE rings – manufactured & supplied by National Fluoromers
| Property | Value |
|---|---|
| Material | Virgin PTFE / filled PTFE (glass, bronze, carbon) |
| Outer diameter (OD) | 10 mm to 500 mm (custom sizes on request) |
| Inner diameter (ID) | As per shaft/piston requirement |
| Thickness / cross section | 0.1 mm to 25 mm |
| Operating temperature | –200°C to +260°C |
| Surface finish | Machined smooth or mirror (optional) |
Whether used as a guide ring, piston ring, or backup ring, our PTFE rings provide exceptional wear resistance and smooth operation under extreme working conditions.
PTFE rings are circular components made from virgin or filled PTFE, used in rotary and reciprocating motion systems where sealing or insulation is required. These rings are highly adaptable and can be designed in solid, split, or scarf-cut configurations to suit various assemblies.
PTFE’s unique non-stick, self-lubricating, and chemically inert properties make these rings an ideal choice for applications where traditional rubber or metal seals fail.
- Low coefficient of friction: Enables smooth movement and minimizes wear.
- Chemical resistance: Inert to nearly all acids, alkalis, solvents, and fuels.
- High temperature tolerance: Performs from –200°C to +260°C.
- Excellent electrical insulation: Suitable for high-voltage and electronic components.
- Moisture, UV, and weather resistant: Performs in harsh outdoor conditions.
- Self-lubricating: No grease or oil required for operation.
- Reduces energy loss and heat generation
- Enhances life of shafts, pistons, and other moving parts
- Custom-fit to shaft and bore dimensions
- Maintenance-free, long-lasting performance
- Available in filled grades for enhanced wear resistance and strength
- Shaft seals and piston rings
- Guide rings in hydraulic and pneumatic cylinders
- Insulation rings in electrical devices
- Bearing rings and spacers in high-speed machinery
- Back-up rings in O-ring sealing systems
- Valve and flange assemblies in chemical processing
- Chemical & petrochemical
- Hydraulic & pneumatic equipment
- Electrical & electronics
- Food & beverage processing
- Pharmaceuticals & biotech
- Marine, oil & gas
- Aerospace & defense
- Precision CNC machining for tight tolerances and perfect fit
- Virgin and custom-filled PTFE grades available
- In-house tooling for custom profiles and dimensions
- Export-ready packaging and fast delivery timelines
- Technical assistance for sizing, material selection, and installation
- Solid, split, scarf-cut, or step-cut rings
- Available individually or as part of custom PTFE seal kits
- Supplied in virgin and filled PTFE grades
- Short runs, bulk orders, and prototyping supported
Send your dimensions or drawing today – we will deliver the exact fit for your application.
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