Key Benefits for bearing grade PEEK
Ultra-Low Coefficient of Friction
Engineered to minimize drag, ensuring smooth and efficient movement in high-precision assemblies.
Superior Wear & Abrasion Resistance
Designed for exceptional durability under continuous sliding contact and heavy mechanical loads.
Optimized for High PV Limits
Maintains structural integrity and performance in extreme Pressure-Velocity conditions where standard materials fail.
Enhanced Thermal Management
Offers superior heat dissipation compared to unfilled PEEK, effectively preventing thermal degradation during operation.
Exceptional Dry-Running Performance
Self-lubricating properties make it the ideal choice for oil-free, non-lubricated, or maintenance-critical environments.
Flexible Supply & Machining
Available in various forms (rod, sheet, tube) or as high-tolerance, custom-machined components ready for assembly.
Performance Table of Bearing Grade PEEK
Mechanical Behavior
| Item | Tensile strength(23℃) | Bending strength(23℃) | Compressive strength(23℃) | Izod impact strength(no gap) | ||
|---|---|---|---|---|---|---|
| ISO527 | ISO 178 | ISO 604 | ISO 180/IU | |||
| Test Standard or Instrument | Unit | MPa | MPa | MPa | kJ/m² | |
| PEEK+10%Carbon Fiber+10%Graphite+10%PTFE | 134 | 186 | 150 | 32 |
Thermal Performance
| Item | Melting point | Distortion temperature | Continuous service temperature | Coefficient of thermal expansion | Flammable level | ||
|---|---|---|---|---|---|---|---|
| DSC 11357 | ISO 75-1/2 | UL 74685 | ASTM D696 | UL 94 | |||
| Test Standard or Instrument | Unit | ℃ | ℃ | ℃ | 10 -5℃ | V-0@mm | |
| PEEK+10%Carbon Fiber+10%Graphite+10%PTFE | 343 | 293 | 260 | 2.2 | 0.75 |
Electrical Performance
| Item | Dielectric strength | Dielectric constant | Surface resistivity | ||
|---|---|---|---|---|---|
| IEC 60243-1 | IEC60250 | ||||
| Test Standard or Instrument | Unit | kV/mm | – | Ω | |
| PEEK+10%Carbon Fiber+10%Graphite+10%PTFE | 5*10⁶ |
Other Performance
| Item | Density | Rockwell hardness | Friction coefficient | Water Abs. (25°C.24Hrs) | Mould shrinking percentage | |||
|---|---|---|---|---|---|---|---|---|
| ISO 1183 | ISO 2039 | ISO 62 | 3mm,170 ℃, Flow direction | Perpendicular to flow direction | ||||
| Test Standard or Instrument | Unit | g/cm³ | HRR | μ | % | % | % | |
| PEEK+10%Carbon Fiber+10%Graphite+10%PTFE | 1.43 | 108 | 0.18 | 0.06 | 0.3 | 0.5 | ||
Differences Between Various Grades of PEEK Materials and Their Typical Applications
| Property | Bearing Grade PEEK | Virgin PEEK | CF30 PEEK (30% Carbon Fiber) | GF30 PEEK (30% Glass Fiber) |
|---|---|---|---|---|
| Main Function | Wear resistance, low friction | High toughness, high purity | High strength, high stiffness, conductivity | High strength, high stiffness, high heat resistance |
| Core Filler | 10% PTFE, 10% graphite, 10% carbon fiber | None | 30% carbon fiber | 30% glass fiber |
| Advantages | Extremely low friction coefficient, excellent wear resistance, self-lubricating | Highest toughness and ductility, excellent impact resistance, good biocompatibility | Maximum mechanical strength and stiffness, creep resistance, conductive | High mechanical strength, excellent dimensional stability, superior heat resistance |
| Disadvantages | Lower mechanical strength than reinforced PEEK | Relatively high friction coefficient, lower wear resistance | Lower toughness, more brittle than virgin PEEK | Lower toughness, abrasive to tools, electrically insulating |
| Typical Applications | Bearings, bushings, seals, piston rings | Medical implants, food processing parts, high-impact components | Aerospace structures, semiconductor fixtures, automotive high-load parts | Industrial gears, high-load structural parts, pump and valve components |
Typical Applications & Recommended Conditions
Typical Applications
- • Bearings & Bushings
- • Thrust Washers
- • Seals & Wear Rings
- • Valve Seats
- • Pump Components
Recommended Conditions
- • High Load
- • Dry-Running Performance
- • Intermittent Lubrication
- • Steam Exposure
- • Chemical Environment
Mating Part Selection
- • Stainless Steel Shafts
- • Hardened Steel
- • Ceramic Surfaces
- • Non-Metallic Mating Parts
Not Recommended For
- • High impact loads
- • Scenarios requiring extreme toughness
- • *Consider Virgin PEEK
Comprehensive PEEK Supply & Precision Machining Solutions
Available Forms
- Rod & Sheet
- Tube / Tubular bar
- Machined bushings
- Custom wear rings
- Custom seals and bearing components
Machining Capability
- Precision CNC turning & milling
- High-tolerance parts production
- Small batch prototyping
- Custom engineering drawing support
- Full CAD/CAM workflow
Need a Custom Component Solution?
Consult with our engineers for a free technical assessment.
FAQs about Bearing Grade PEEK
Bearing grade PEEK is formulated with high-performance lubricants, typically a combination of PTFE, Carbon fiber, and Graphite (often 10% each), which enhances its frictional properties compared to pure PEEK.
Yes, for bushings, bearing grade PEEK is significantly better due to its lower coefficient of friction and superior wear resistance. However, if your application requires extreme impact toughness, virgin PEEK may be a better choice.
Yes, it is designed for self-lubricating, dry-running environments. It performs exceptionally well where external lubrication is impossible, such as in food processing or high-vacuum systems.
We provide bearing grade PEEK in various forms: standard rods, sheets, and tubes (tubular bars), as well as fully finished, high-tolerance custom machined components based on your requirements.
For standard stock materials, we ship within 3-5 days. For custom-machined parts, the lead time typically ranges from 7-15 days, depending on drawing complexity and order volume.
Yes, we specialize in high-precision CNC machining. Simply provide your CAD/technical drawings, and our engineering team will review them to ensure exact tolerance compliance.
Yes, PEEK is highly resistant to hydrolysis (steam) and maintains stability across a wide range of aggressive chemical environments, making it ideal for pump seals and valve components.
Bearing grade PEEK prioritizes low friction and wear resistance. CF30 (Carbon Fiber) and GF30 (Glass Fiber) focus on higher structural rigidity, dimensional stability, and mechanical strength rather than self-lubrication.
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- T1@peeksources.com
- +86 135 0424 7075
- Dalian, Liaoning, China
- Mon – Sat: 24Hs
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