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Ensuring the safety and reliability of a commercial vehicle starts with its foundation—the braking system. Among the most critical Foton truck parts are the friction linings that provide the stopping power. The T-Friction Lining of Brack, identified by the precise OEM number QDT3502064-LB, is a factory-engineered brake shoe lining designed for specific FOTON truck models. This component is crucial for converting kinetic energy into thermal energy through friction, allowing your vehicle to slow down and stop safely under various load conditions. Choosing the authentic part, QDT3502064-LB, ensures optimal friction characteristics, durability, and compatibility with your truck’s brake assembly.
T-Friction Lining Of Brack (English)
Фрикционная накладка тормозной колодки (Russian)
Forro de Fricción de la Zapatilla (Spanish)
The part numbered QDT3502064-LB is the consumable friction material riveted or bonded to a brake shoe, which in turn presses against the inner diameter of a drum brake. Its primary function is to create the necessary friction to slow the rotation of the wheel.
When the brake pedal is applied, hydraulic pressure forces the brake shoe outward, pressing the lining against the drum. The resulting friction generates heat and torque opposite to the wheel’s rotation, decelerating the vehicle. The performance of lining QDT3502064-LB directly influences stopping distance, pedal feel, and brake fade resistance.
This component is engineered for the rear or auxiliary brakes on many FOTON commercial trucks, where drum brakes are commonly used for their durability and effective parking brake function.
The genuine QDT3502064-LB friction lining is a complex composite material. Traditionally, brake linings contain a mixture of reinforcing fibers (like steel, aramid, or glass), friction modifiers, abrasives, binders, and fillers.
These components are precisely balanced to achieve the desired performance characteristics: a high and stable coefficient of friction, good heat dissipation, low wear on the counterpart drum, and structural integrity. The “T” designation may refer to a specific formulation or shape code within FOTON’s parts catalog.
Modern linings are often asbestos-free, utilizing advanced ceramic or semi-metallic compounds that offer excellent performance while meeting environmental and health regulations.
Using the exact OEM part QDT3502064-LB is critical for several reasons. First, it ensures the physical dimensions (arc length, thickness, width) perfectly match the brake shoe and drum clearance.
Second, the friction characteristics are calibrated to work with the vehicle’s brake proportioning system, ensuring balanced braking between axles. An incorrect lining can cause premature lock-up of the rear wheels or reduced braking efficiency.
Always replace friction linings in axle sets (both left and right) to maintain balanced braking. Consult your vehicle’s service manual or a trusted parts database to confirm that QDT3502064-LB is the correct lining for your specific FOTON truck model and axle.
The following table provides detailed technical data for the FOTON T-Friction Lining. This information is vital for parts verification and system understanding.
| Parameter | Specification | Details / Notes |
|---|---|---|
| OEM Part Number | QDT3502064-LB | Primary Identification Code |
| Product Name | T-Friction Lining Of Brack | Brake Shoe Lining / Set |
| Brand | FOTON | Original Equipment Manufacturer |
| Material Type | Non-Asbestos Organic (NAO) / Semi-Metallic | Specific compound per FOTON spec |
| Attachment Method | Riveted or Bonded | To the brake shoe table |
| Friction Coefficient (μ) | GG / HF (Typical for Trucks) | Designed for medium-duty commercial use |
| Max Operating Temperature | Up to 450°C – 550°C | Short-term peak tolerance |
| Application | Rear Drum Brakes | For specified FOTON truck models |
Replacing the friction lining QDT3502064-LB is a task for skilled mechanics. It typically involves jacking up the truck, removing the wheel and brake drum, and disassembling the brake shoe assembly.
The old, worn lining must be removed from the shoe, and the shoe table must be cleaned thoroughly of rust, dirt, and old rivets. The new lining, part number QDT3502064-LB, is then positioned correctly and attached using the specified method—either with new high-quality rivets or a certified bonding adhesive.
Critical steps include checking the brake drum’s inner diameter for wear and scoring. An excessively worn or out-of-round drum must be machined or replaced, or it will rapidly destroy the new lining. All hardware (springs, pins, adjusters) should be inspected and replaced if worn during reassembly.
After installing new linings like QDT3502064-LB, a proper break-in (or bedding-in) process is essential to transfer a thin layer of friction material evenly onto the drum surface.
Initial Break-in: Drive at moderate speed (e.g., 50 km/h) and apply medium brake pressure to slow down to about 10 km/h. Repeat this process 20-30 times, allowing adequate cooling intervals between stops. Avoid coming to a complete stop or holding the brakes during this phase.
Regular Inspection: During routine service intervals, visually inspect the remaining lining thickness through the drum’s inspection hole or by removing the drum. Replace the lining set well before it wears down to the rivets.
System Check: Always check brake fluid level and condition, wheel cylinder operation, and adjust the brake shoe clearance (if manual adjusters are present) after installing part QDT3502064-LB.
Avoid Contamination: Keep brake components clean. Oil, grease, or brake fluid contamination on the lining surface will drastically reduce friction and require immediate replacement.
The T-Friction Lining of Brack, OEM QDT3502064-LB, is more than just a wear item; it is a fundamental safety component. Its performance directly affects your ability to control a heavily laden vehicle.
Choosing the genuine FOTON part guarantees that you are using a lining with the exact friction properties, dimensions, and durability that the vehicle’s engineers specified. This ensures predictable braking behavior, longevity, and protection for the more expensive brake drums.
Do not compromise on the components that ensure your safety on the road. Insist on the authentic QDT3502064-LB lining for your FOTON truck’s brake service. For all your maintenance needs, rely on our comprehensive selection of verified OEM parts to keep your fleet operating safely and efficiently.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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