Various Sizes PTFE Guide Ring With Low Friction Coefficient Used In Shock Absorbers
Product Overview
Engineered for the demanding requirements of modern automotive damper systems, this PTFE guide ring delivers exceptional rod guidance with minimal friction. Manufactured through precision molding and machining processes, each component undergoes rigorous quality inspection to ensure consistent performance across production runs.
Addressing Your Application Challenges
Excessive Rod Wear: Improperly guided piston rods cause premature seal failure, leading to oil leakage and reduced damper life. Our PTFE guide ring maintains precise rod alignment with a friction coefficient of just 0.08-0.10, significantly reducing side-load wear.
High-Temperature Degradation: Conventional guide materials lose integrity under continuous thermal cycling. With a service range of -180°C to +260°C, our filled PTFE composition retains dimensional stability and mechanical properties across the full operating spectrum.
Inconsistent Batch Quality: Variability in molded components leads to assembly line rejections. Our computer-controlled sintering with 16-stage temperature curves and 100% GO/NO-GO gauge inspection eliminates batch-to-batch variation.
Long Lead Times for Custom Parts: New tooling fabrication frequently delays project timelines. Our in-house mold shop delivers new tooling in approximately one week, keeping your development schedule on track.
Corrosion-Related Failures: Exposure to aggressive fluids and road chemicals accelerates material degradation. PTFE's inherent chemical inertness ensures reliable performance even in harsh environmental conditions.
Technical Specifications
| Item | unit | value |
| Density | g/cm3 | 2.18 |
| Water absorption (23ºC in air) | % | <0.05 |
| Tensile strength | MPa | 25 |
| Tensile strain at break | % | >50 |
| Co-efficient of friction (on steel and ground) | / | 0.08-0.10 |
| Charpy impact strength (at 23ºC) | KJ/m² | No break |
| Tensile modulus of elasticity | MPa | 700 |
| Rockwell hardness | / | M30 |
Key Features
1. Highly durable
2. Abrasion resisting
3. Resistance against corrosion
4. Low maintenance cost
5. Dimensional accuracy
6. Easy to install
Material Properties & Performance
Excellent chemical stability and electric insulation;
Excellent self lubrication and heat stability;
Excellent ageing-resistance performance and radiation resistance
Color: Natural color or as customer's requirement
Size: Standard size or as customer's requirement
Manufacture method: Injection or machinery process
Packing: standard packing or customized package
Sample: similar size for test or customized samples can be offered
Lead time: 10~25days
Application Industries
1. Corrosion-resistant pipe and fittings: pipes, pipe connections, feeding tubes, discharge tubes, wires and other flexible casing;
2. Chemical devices: a heat exchanger, distillation unit(tower reactor, pylon, heat exchangers, tanks, valves, elbows, tees, etc)
3. Electrolytic membrane, gas dialysis membrane, oil and water membrane, etc.
Other Applications
1. Agricultural, pumps, mining
2. Rail and transport use, Wheels
3. General engineering applications
4. Marine, Shipping, Automotive
Manufacturing & Quality Advantages
1. 100% guarantee: Providing with your exact specs. If didn't meet a burrs/tolerance/smoothness, we will replace all the products or issue you a credit.
2. Flexible Order: We handle both short run and large production run; as small as 50 pieces to as large as 1000000 pieces (Normal Material only).
3. Delivery on Time: Multiple facilities, strong Engineering team, over 80 staffs, Ensure Supply.
4. Excellent after Sale Service: Resolving any problem both in terms of products quality and technical specs based on our specialty and experience.
5. Rich Experience On PTFE Material: Our Machinists Are Highly Experienced With Many PTFE Grade And Advanced Engineering Plastic.
6. High Precision: With the persistent endeavor of our people, we now are able to achieve a precision tolerance.
Production & OEM Capabilities
China Molding and Machining PTFE parts
PTFE custom made
Fluoropolymer molding parts manufacturers
Production of PTFE parts and component
High quality PTFE OEM service
Produced by customer's design
Frequently Asked Questions
Q1: What filler materials are available for your PTFE guide rings?
We offer a wide range of filler options including bronze, carbon fiber, glass fiber, molybdenum disulfide (MoS₂), and graphite. Each filler combination is tailored to optimize specific performance characteristics such as wear resistance, thermal conductivity, or load-bearing capacity. Our engineering team can recommend the optimal formulation for your application requirements.
Q2: Can you match the dimensional tolerances of my existing guide ring supplier?
Yes. We manufacture to customer-provided drawings and specifications with tight tolerance control. Each production batch undergoes 100% GO/NO-GO gauge inspection, and we can hold tolerances as fine as ±0.02mm on critical dimensions. We encourage you to share your current part drawing for a feasibility assessment.
Q3: What is the typical lead time for custom-sized guide rings?
For new tooling, fabrication takes approximately one week. Standard production lead time is 10-25 days depending on order volume and complexity. Rush orders can be accommodated upon request. We recommend contacting our sales team with your target delivery date so we can plan production accordingly.
Q4: Do you provide material certifications and test reports?
Absolutely. Every shipment includes a Certificate of Analysis (COA) documenting material composition, mechanical properties, and dimensional inspection results. Our IATF 16949:2016 certified quality management system ensures full traceability from raw material through finished product.
Q5: What is the minimum order quantity (MOQ) for custom guide rings?
Our MOQ is negotiable depending on the part complexity and material requirements. We support both prototype quantities (as low as 50 pieces) and high-volume production runs exceeding 1,000,000 pieces for standard materials. Please reach out with your projected annual volumes for a tailored quotation.
Q6: How do you ensure consistent quality across large production batches?
We employ computer-controlled sintering with 16 distinct temperature stages, automated pressing machines, and 100% dimensional inspection using GO/NO-GO gauges. Our statistical process control (SPC) system monitors critical parameters in real time, and each batch undergoes random sampling for mechanical property verification.
