Precision-machined PTFE guide rings for hydraulic and pneumatic systems – by National Fluoromers
| Property | Value |
|---|---|
| Material | Virgin PTFE, Glass-filled PTFE, Bronze-filled PTFE |
| Standard sizes | Ø10 mm to Ø500 mm (custom on request) |
| Thickness / width | 1 mm to 25 mm |
| Operating temperature | –200°C to +260°C |
| Color | White, green, brown, blue, or as specified |
| Tolerance | Customer-defined |
Whether you need standard sizes or custom-made profiles, our PTFE guide rings are trusted across industries for their unmatched performance under extreme pressure, temperature, and chemical exposure.
A PTFE guide ring (also called a wear ring or bearing ring) is a non-metallic ring placed on pistons or rods within cylinders to guide motion and absorb lateral forces, while protecting seals from excessive wear. PTFE’s low coefficient of friction, self-lubricating nature, and chemical inertness make it a perfect material for smooth, controlled motion in demanding environments.
PTFE guide rings are often preferred over metallic ones due to their ability to reduce scoring, vibration, and misalignment.
- Low friction & self-lubricating: No need for external lubrication.
- High wear resistance: Extended life under dynamic load conditions.
- Chemically inert: Resists oils, fuels, hydraulic fluids, and solvents.
- No stick-slip: Delivers smooth and silent linear motion.
- Wide temperature range: Performs from –200°C to +260°C.
- Easy installation: Supplied in split or solid form.
- Prevents scoring and scratching of cylinder walls
- Reduces downtime by protecting main sealing elements
- Suitable for reciprocating, rotating, or oscillating motion
- Improves machine accuracy and repeatability
- Works in dry, wet, or chemically aggressive environments
- Custom profiles and materials available for specific applications
- Hydraulic and pneumatic cylinders
- Injection molding machines
- Mobile equipment (construction, mining, lifting)
- Presses and servo-actuators
- Chemical pumps and dosing units
- Offshore and marine systems
- Robotics and automation systems
- Hydraulic & pneumatic equipment
- Construction & earthmoving machinery
- Food & beverage processing
- Oil & gas
- Marine & shipbuilding
- Industrial automation
- Plastic injection & blow molding
- Aerospace & defense
- Precision-machined guide rings to exact dimensions
- Wide material options for heat, pressure, and chemical resistance
- Split and continuous designs available
- Rapid prototyping and low MOQ for custom projects
- Global delivery and OEM packaging support
- Split rings, solid rings, or spiral cut for easy installation
- Delivered in kits or individually packed
- Bulk packaging or custom branding available
- Ready-to-install on shafts, rods, or pistons
Send us your dimensions or application specs – we will engineer the right guide ring for your needs.
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