PEEK-LF30 Rods & Sheets
Ultra-low friction PEEK-LF30 Rods and Sheets (bearing grade filled with 10% Carbon Fiber, 10% PTFE, and 10% Graphite) engineered for unlubricated dynamic bearings, seals, and bushings. Delivers extreme PV-limit load capacity, lowest Coefficient of Friction (CoF: 0.15), and 260°C thermal stability. Fully stress-relieved black PEEK-LF30 machining stock tested 100% ultrasonic void-free for precision CNC turning and milling. Request a quote for custom cut PEEK-LF30 stock sizes and datasheets.
Product information
Published information supports preliminary product selection. Confirm the exact grade, dimensions, tolerances, documentation and application suitability with the quotation for your order.
Description
PEEK-LF30 Rods and Sheets (often designated as PEEK-LF30 bearing grade stock, black PEEK-LF30 machining stock, PEEK 10-10-10 bearing stock, or PTFE graphite carbon filled PEEK) represent the ultimate self-lubricating thermoplastic material engineered for dry-running friction and heavy wear applications. By compounding 10% carbon fiber, 10% PTFE (Teflon), and 10% graphite into a high-purity polyetheretherketone matrix, this low friction PEEK bushing material lowers the Coefficient of Friction (CoF) to 0.15 while providing an extremely high Pressure-Velocity (PV) limit for unlubricated PEEK bearing stock operating up to 260°C.
Key Mechanical, Thermal & Friction Data:
| Tribological & Physical Property | Nominal Value | Test Standard |
| Material Designation | PEEK-LF30 (10-10-10 Filled) | Black Matte Appearance |
| Dynamic Coefficient of Friction (CoF) | 0.15 – 0.20 (Dry Unlubricated) | ASTM D3702 |
| Pressure-Velocity (PV) Limit | Extreme (Unlubricated Running) | Continuous Dynamic Load |
| Tensile Strength | 120 – 135 MPa | ISO 527 |
| Flexural Modulus | 7.5 – 8.5 GPa | ISO 178 |
| Heat Deflection Temp (HDT @ 1.8 MPa) | 280°C | ISO 75 |
| Continuous Operating Temp | 260°C (Short peak 300°C) | UL 746B |
| Internal Porosity & Quality | 100% Ultrasonic Void-Free | ASTM A388 NDT |
Engineering Advantages & Tribological Performance:
• Self-Lubricating Dry Running Capability: Embedded PTFE and graphite solid lubricants eliminate the need for external grease or oil. This makes self-lubricating PEEK rod and sheet stock ideal for maintenance-free machinery and cleanroom dry running PEEK wear ring material applications.
• Extreme PV Limit & Low Wear Rate: Carbon fiber reinforcement acts as a structural load-bearing backbone while internal lubricants prevent galling and seizing. This gives high PV limit PEEK sheet and rod stock unmatched wear resistance under heavy dynamic loads.
• Thermal & Chemical Resilience (260°C): Retains low friction and structural integrity in aggressive chemical environments, hot steam washdowns, and high-temperature processing equipment where unlubricated PEEK bearing stock is required.
• Zero-Void Stress-Relieved Machinability: Automated continuous extrusion and multi-stage thermal stress-relief annealing eliminate internal tension, ensuring warp-free CNC lathe turning and parting of thin-walled bushings.
Target Industry Component Applications:
Designed specifically for precision CNC lathe turning, milling, and parting of:
• Dynamic Bearings & Bushings: High-load unlubricated journal bearings, sleeve bushings, thrust washers, and guide bushes.
• Fluid & Valve Components: Dynamic PEEK piston rings, rod seals, ball valve seats, compressor wear rings, and pump vanes operating in harsh media.
• High-Speed Industrial Machinery: Conveyor wear strips, textile machinery guides, automotive transmission bushings, and paper processing rollers.
PEEK-LF30 Sourcing & Supply Options:
• Available Diameters (Rods): Φ6mm to 200mm in stock (standard 1000mm/3000mm lengths or custom cut PEEK-LF30 stock billets).
• Available Thicknesses (Sheets): 5mm to 100mm in full plates (610x1000mm) or custom pre-cut billets.
• Quality Assurance: Full Material Test Reports (MTR) detailing 10-10-10 filler content, Certificates of Conformance (CoC), and lot-traceable test data shipped with every order.
Looking for a factory-direct PEEK-LF30 supplier or upgrading from unfilled PEEK? Send us your STEP/DWG drawings, PV load specs, or dimensions for an immediate technical evaluation and quote within 12-24 hours.
Material overview
Understanding PEEK (Polyether Ether Ketone)
Why engineers use it
- Strong balance of heat, chemical and mechanical performance.
- Can be molded, extruded, machined or printed in suitable grades and equipment.
- Good fatigue and wear potential for demanding moving or loaded parts.
- Available in unfilled, glass-fiber, carbon-fiber and wear-modified grades.
- Suitable for precision components where long-term reliability justifies a specialty polymer.
Limits to consider
- High processing temperature requires capable equipment and controlled drying.
- Crystallinity, cooling and annealing can affect dimensions and performance.
- Reinforcement improves some properties but may reduce ductility or change machining behavior.
- Not every chemical, wear or medical application is covered by a standard industrial grade.
- PEEK can be unnecessary over-specification where PPS, PEI or another polymer meets the duty.
Grades and product forms
Unfilled PEEK provides the broad base-property balance. Glass-fiber grades generally target stiffness and dimensional control; carbon-fiber grades may add stiffness, strength and conductivity; bearing grades use fillers such as carbon, graphite or PTFE to tune friction and wear. Film, filament, powder, pellets and stock shapes each require different processing and purchasing information.
Performance points to review
| Evaluation area | Why it matters | Information to provide |
|---|---|---|
| Temperature behavior | Useful performance under elevated or changing temperature | Continuous and peak temperature, cycle length and time at load |
| Mechanical response | Strength and stiffness must match the real part geometry | Load direction, stress level, impact and fatigue expectations |
| Environmental resistance | Fluids, cleaning agents and atmosphere can change service life | Chemical name, concentration, temperature and exposure time |
| Dimensional control | Tight-tolerance parts depend on both material and processing | Finished dimensions, tolerances and assembly conditions |
| Electrical or insulation needs | Electrical requirements may influence grade and thickness | Voltage, dielectric, conductivity or insulation target |
These are engineering discussion points, not guaranteed property values. Final acceptance criteria should be agreed for the selected grade, process and order.
Typical application directions
These examples show where the material may be evaluated. They do not replace a suitability review for the finished component.
Fabrication and processing preparation
Share the finished part drawing as well as the requested rod diameter and length. This makes it possible to discuss machining allowance, tolerance, cut length, quantity and whether a closer starting size could reduce waste.
Where the application is critical, define what a successful trial looks like before material is ordered: dimensions after processing, visual condition, mechanical response, assembly fit or another measurable result.
When another material may be better
PPS, PEI, PSU/PPSU or a conventional engineering plastic may be more economical when temperature, chemical and mechanical requirements are moderate. PEEK is justified when several demanding requirements occur together or when service life and reliability outweigh raw-material cost.
We recommend sharing the current material and the reason it is being reconsidered. Cost, processability, supply form and inspection burden belong in the decision alongside technical performance.
Information needed for an accurate quotation
A useful RFQ reduces follow-up questions and helps us distinguish between a material request and a finished-part requirement.
| Product form | Raw material, stock shape, semi-finished blank or completed part |
|---|---|
| Dimensions | Nominal size, finished size and tolerances |
| Quantity | Trial quantity, first order and estimated annual demand |
| Application | Part function and current material, if any |
| Operating temperature | Continuous range, peak temperature and cycle duration |
| Environment | Chemicals, gases, moisture, pressure, vacuum or outdoor exposure |
| Mechanical duty | Load, speed, impact, wear and mating components |
| Documentation | Drawing revision, inspection, traceability or compliance needs |
Frequently asked questions
Can I request a sample or trial quantity?
Trial quantities can be discussed according to product form and availability. Tell us what you need to prove during the trial, the intended process and the expected production quantity if the test succeeds.
Do you provide a data sheet or material documentation?
Available documentation depends on the selected material and supply route. List the documents required by engineering, purchasing or quality when you inquire so they can be checked before quotation.
Can the grade be selected from a product name alone?
No. Similar product names can cover different grades, colors, fillers and processes. Selection should be based on the finished application, environment and required property balance.
Can you supply custom dimensions or finished parts?
Custom sizes, blanks or finished parts can be reviewed where appropriate. A drawing with tolerances, quantity and material requirement is the best basis for quotation.
How should we evaluate an alternative to our current material?
Share the current grade, the part’s service conditions and the reason for changing it. A useful comparison looks at failure mode, processing, life, inspection and total project cost—not only a single property value.
What determines lead time?
Lead time depends on product form, grade, size, quantity, documentation, machining and current availability. Confirm the required delivery date and destination with the RFQ rather than assuming a standard schedule.
Send the drawing, application and quantity. We will use the project details to prepare a practical material and supply discussion.
