Productscpzx
Material Types and Specification Systems
| Type | Primary Characteristics | Suitable Gear Types | Color | Density (g/cm³) |
| Pure PEEK | General-purpose, balanced comprehensive properties | Transmission gears, synchronizer gears | Beige | 1.30-1.32 |
| Glass Fiber Reinforced PEEK | Increased stiffness, elevated heat deflection temperature | High-load gears, structural gears | Beige/Black | 1.40-1.50 |
| Carbon Fiber Reinforced PEEK | High stiffness, high thermal conductivity, low expansion | Precision gears, high-temperature gears | Black | 1.40-1.45 |
| Graphite/PTFE Filled PEEK | Extremely low friction coefficient, self-lubricating | Oil-free lubrication gears, high-speed gears | Black | 1.35-1.45 |
| Wear-Resistant Enhanced PEEK | Enhanced wear resistance, extended lifespan | Heavy-duty gears, friction gears | Various | 1.35-1.50 |
Common Specification Ranges
- Module: 0.5-8 mm
- Number of Teeth: 8-200 teeth
- Diameter Range: Φ10 - Φ500 mm
- Thickness Range: 5-100 mm
Technical Parameters and Performance Indicators
Mechanical Properties
| Performance Indicator | Pure PEEK | 30% Glass Fiber Reinforced | 30% Carbon Fiber Reinforced | Test Standard |
| Density (g/cm³) | 1.30-1.32 | 1.49-1.52 | 1.40-1.43 | 1.40-1.43 |
| Tensile Strength (MPa) | 90-100 | 160-180 | 200-220 | ISO 527 |
| Flexural Strength (MPa) | 140-170 | 240-280 | 300-320 | 300-320 |
| Flexural Modulus (GPa) | 3.5-4.0 | 9.0-10.5 | 13-15 | ISO 178 |
| Impact Strength (kJ/m²) | 8-10 | 9-11 | 7-9 | ISO 179 |
| Rockwell Hardness | M99 | M101 | M102 | ISO 2039-2 |
Thermal and Tribological Properties
| Performance Indicator | Pure PEEK | 30% Glass Fiber Reinforced | 30% Carbon Fiber Reinforced | Test Standard |
| Melting Point (°C) | 343 | 343 | 343 | ISO 3146 |
| Heat Deflection Temp. (1.8MPa, °C) | 152 | 315 | 315 | ISO 75-2 |
| Continuous Service Temperature (°C) | 250 | 250 | 250 | — |
| Linear Expansion Coefficient (10⁻⁵/K) | 4.7 | 2.4 | 1.5 | ISO 11359-2 |
| Friction Coefficient (vs. Steel) | 0.2-0.3 | 0.25-0.35 | 0.2-0.3 | ASTM D1894 |
| PV Limit Value (MPa·m/s) | 3.5 | 4.5 | 5.0 | — |
Gear-Specific Performance
| Performance Indicator | Typical Value | Test Conditions | Advantage Description |
| Bending Fatigue Limit (MPa) | 35-45 | 10⁷ cycles, 23°C | Long lifespan, high reliability. |
| Contact Fatigue Limit (MPa) | 600-800 | 10⁷ cycles, 23°C | Strong resistance to pitting |
| Permissible Linear Speed (m/s) | 15-25 | Continuous operation | Smooth high-speed operation |
| Noise Level (dB) | Reduced by 3-8 | Compared to metal gears | Significant vibration damping and noise reduction. |
| Transmission Efficiency (%) | 98-99.5 | ormal lubrication conditions | Low energy consumption, high efficiency |
Typical Application Fields
| Application Field | Specific Uses | Recommended Type | Key Advantages |
| Aerospace | Aircraft engine accessory gears, transmission systems, UAV power gears | Carbon Fiber Reinforced PEEK | Lightweight, high-temperature resistant, corrosion resistant. |
| Automotive Industry | Transmission gears, new energy vehicle motor gears, turbocharger gears | Glass/Carbon Fiber Reinforced PEEK | High-temperature resistant, weight reduction, noise reduction. |
| Medical Devices | Surgical robot gears, imaging equipment drive gears, infusion pump gears | Pure PEEK/Medical Grade PEEK | Biocompatible, sterilizable, non-magnetic |
| Food & Beverage | Filling equipment gears, conveyor system gears, food processing machinery gears | Food Grade PEEK | Corrosion resistant, clean, FDA certified. |
| Semiconductor Manufacturing | Vacuum pump gears, wafer handling gears, etching equipment drive components | High-Purity PEEK | Corrosion resistant, low outgassing, plasma resistant. |
| Energy & Chemical Industry | Pump & valve gears, compressor gears, deep-sea equipment drive components | Reinforced PEEK Types | Chemical resistant, high-pressure resistant, long service life |
| High-End Equipment | Precision instrument gears, robot joint gears, textile machinery gears | Various Types | High precision, wear resistant, maintenance-free |
Design and Manufacturing Guide
1. Gear Design Key Points
- Module Selection: Recommended module ≥1; consider manufacturing precision for small module gears.
- Tooth Profile Optimization: Involute profile modification can be used to reduce meshing impact.
- Structural Design:Avoid sharp corners, ensure uniform wall thickness, reduce stress concentration.
- Fit Tolerances: Account for thermal expansion differences when fitting with metal shafts; H7/f7 recommended.
2. Manufacturing Processes
| Process Method | Applicable Scenarios | Accuracy Grade | Surface Roughness Ra (μm) | Key Considerations |
|---|---|---|---|---|
| Injection Molding | Mass production, small gears | Grade 7-9 | 0.8-1.6 | Mold temp 160-180°C, sufficient packing pressure. |
| CNC Machining | Small batches, large precision gears | Grade 5-7 | 0.4-0.8 | Sharp tools, adequate cooling, low feed rate. |
| Powder Sintering | Complex structures, special gears | Grade 8-10 | 1.6-3.2 |
3. Post-Processing
- Annealing: Stress relief, 120-140°C for 2-4 hours.
- Surface Treatment: Plasma treatment to increase surface energy; PVD coating if necessary.
- Dimensional Stabilization: Improve dimensional stability through thermal cycling.
Selection Decision Matrix
| Application Scenario | Primary Performance Requirement | Recommended PEEK Type | Design Considerations | Lubrication Suggestion |
|---|---|---|---|---|
| High-Temperature Environment | Temperature resistance, thermal stability | Glass/Carbon Fiber Reinforced | Appropriately increase backlash, consider thermal expansion. | High-temperature grease. |
| Corrosive Environment | Chemical resistance, hydrolysis resistance | Pure PEEK/Special PEEK | Avoid crevice corrosion in design. | Compatible lubricant. |
| High-Speed Operation | Dynamic balance, low friction | Carbon Fiber Reinforced/Graphite Filled | High-precision tooth profile, lightweight design. | Minimal oil mist lubrication. |
| Heavy Load Transmission | High strength, fatigue resistance | Reinforced PEEK Types | Increase face width, optimize root fillet. | Heavy-duty grease. |
| Clean Environment | Low outgassing, easy cleaning | Pure PEEK/Medical Grade | Smooth surfaces, no dead-end design. | Solid lubricants / Dry running. |
| Precision Transmission | Dimensional stability, low backlash | Carbon Fiber Reinforced PEEK | Tight tolerance fits, eliminate play. | Precision instrument oil. |
| Underwater Application | Hydrolysis resistance, biofouling resistance | Special PEEK Types | Corrosion-resistant design, avoid electrochemical corrosion. | Waterproof grease. |
Industry-Specific Custom Solutions
1. Aerospace Sector
- Requirements: Extreme environment adaptability, high reliability, lightweight.
- Solution: Carbon fiber reinforced PEEK gears, vacuum-grade purity, temperature resistant to 300°C.
- Applications:Engine auxiliary gears, spacecraft transmission systems, UAV power gears.
2. Medical Robotics Sector
- Requirements: Repeatedly sterilizable, high precision, biocompatible.
- Solution: Medical-grade PEEK gears, compatible with gamma-ray sterilization, nano-level precision.
- Applications: Surgical robot joint gears, rehabilitation equipment drives, diagnostic instrument gears.
3. New Energy Vehicle E-Drive Systems
- Requirements: High-temperature resistance, weight & noise reduction, fluid resistance.
- Solution: Reinforced PEEK gears, NVH-optimized design, resistant to transmission oil.
- Applications: Motor reduction gears, oil pump gears, transmission auxiliary gears.
4. Semicnductor Manufacturing Equipment
- Requirements: Ultra-high cleanliness, plasma resistance, low outgassing.
- Solution: Ultra-high purity PEEK gears, special surface treatment, vacuum compatible.
- Applications: Vacuum pump gears, wafer handling gears, etching equipment drives.
5. Deep-Sea Exploration Equipment
- Requirements: High-pressure resistance, seawater corrosion resistance, long service life.
- Solution: Reinforced PEEK gears, pressure-resistant design, seawater corrosion protection.
- Applications: ROV drive gears, deep-sea pump gears, exploration equipment drive components.
Installation and Maintenance Guide
Installation Precautions
1. Assembly Environment: Perform in a cleanroom to avoid contamination.
2. Temperature Acclimatization: Allow gears to equilibrate to working environment temperature for 24 hours before assembly.
3. Assembly Method: Press in uniformly, avoid impact loads; heating-assisted assembly is recommended.
4. Fastening Method: Avoid over-tightening; use a torque wrench for control.
5. Alignment Accuracy: Ensure shaft alignment accuracy <0.05mm.
