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FMSI#: 4726
Drum: 419
Arc Length: 196.1
Width: 219
Thickness: 21.7/14.95
Leveraging deep expertise in commercial vehicle braking systems, Dingchi manufactures industrial-grade brake linings engineered specifically for demanding heavy-duty applications. Our specialized formulations reliably support Gross Axle Weight Ratings (GAWR) of 20,000lbs & 23,000 lbs, and even exceed these thresholds for specialized transit requirements. Every Dingchi brake lining complies strictly with FMVSS 121 testing requirements, serving diverse heavy-duty transport operations with smooth, controlled, and consistent braking performance. Fleet operators notice the immediate difference in pedal response and the complete absence of harsh grinding noises during operation. The dense, uniform surface texture of the friction material provides immediate tactile confirmation of its structural density, while the distinct scent of fully cured phenolic resins indicates exceptional thermal stability. By extending service life and offering a comprehensive range of models to meet specific customer needs, these linings directly address the operational challenges of modern fleet maintenance.
Engineered to maintain a stable FF friction coefficient grade, the 4726 brake lining utilizes a proprietary wear-resistant compound designed for extreme environments. When commercial trucks navigate long downhill grades or operate in heavy stop-and-go traffic, the braking components generate immense thermal loads. Our specialized friction material actively dissipates this heat, preventing the dangerous fade that compromises vehicle safety. The precise blend of aramid fibers, metallic modifiers, and specialized lubricants ensures that the lining maintains its grip even when surface temperatures peak. This specific formulation guarantees that vehicles operating under the severe mechanical stress of 20,000 to 23,000 lbs GAWR experience predictable, linear deceleration, significantly reducing the frequency of maintenance intervals and keeping commercial vehicles on the road longer.
The mechanical foundation of the 4726 lining relies on an exceptionally rigid steel backing plate, which emits a solid metallic resonance when handled—a direct indicator of its material density and structural strength. Utilizing a precise single anchor pin design, the lining integrates perfectly with heavy-duty drum brake assemblies. During the manufacturing process, the friction material is bonded and riveted to the steel base using exacting pressure parameters, creating a permanent union capable of withstanding immense shear forces during emergency stops. This structural integrity prevents cracking, edge crumbling, or delamination under high-frequency braking cycles. The precisely machined arc length of 196.1mm and width of 219mm ensure full surface contact with the 419mm drum, distributing mechanical stress evenly across the entire braking area and preventing localized hot spots.
For procurement specialists and fleet maintenance directors, sourcing reliable replacement components requires more than just dimensional accuracy. The following details outline the system compatibility, rigorous quality standards, and logistical support framework surrounding the 4726 heavy-duty brake lining.
Accurate component matching is the first step in eliminating installation delays and preventing costly downtime in busy maintenance bays. The 4726 lining is engineered as an exact dimensional drop-in replacement for specific commercial braking systems, requiring zero modifications or forced adjustments during assembly. Mechanics will appreciate the precise alignment of the anchor pin recesses and the exact curvature that matches the drum profile perfectly. By cross-referencing directly with industry-standard identifiers and ensuring full compatibility with major heavy-duty drum systems, this lining removes all guesswork from the procurement process. Fleet managers can confidently order these components knowing they will integrate flawlessly with their existing commercial vehicle axles.
Reference Category | Specification / Part Details |
|---|---|
Primary FMSI Identifier | 4726 |
Direct Cross-Reference Part | GG4726ES2N |
Compatible Brake Architecture | Eaton ESII Heavy-Duty Drum Systems |
Installation Fitment | 100% Direct Match, Seamless Drop-In Replacement |
While categorized as an aftermarket replacement, this commercial brake lining is meticulously manufactured to meet and frequently exceed original equipment specifications. By utilizing advanced metallurgy for the steel backing plates and strictly controlled thermal curing environments for the friction compounds, the final product delivers factory-level braking dynamics. The manufacturing facility employs automated quality control checkpoints that measure dimensional tolerances down to the micron level. Distributors and fleet operators can confidently integrate these linings into their preventative maintenance schedules, knowing they provide the exact stopping power and structural durability expected from original factory components. This commitment to engineering excellence allows commercial operations to optimize their overall maintenance expenditure without ever sacrificing vehicle safety or driver confidence.
Maintaining a predictable and consistent supply chain is absolutely critical for large-scale transit operations and regional parts distributors. To support these demands, we maintain substantial, carefully monitored stock reserves of the 4726 heavy-duty brake lining. These components are stored in strategically located, climate-controlled warehouse facilities, ensuring the sensitive friction material remains in optimal condition, free from humidity degradation prior to dispatch. For scheduled volume orders, our streamlined logistics network provides highly accurate lead times, allowing procurement teams to plan their inventory replenishment cycles with absolute certainty. In situations requiring urgent fleet maintenance to prevent route cancellations, expedited shipping options—including priority next-day dispatch—are readily available. This logistical flexibility ensures that critical replacement parts arrive exactly when needed, keeping commercial vehicles fully operational.
Long-term procurement contracts demand reliable, transparent manufacturer backing to mitigate operational risks. Every single 4726 brake lining dispatched from our facility is supported by a comprehensive standard warranty program that strictly covers any material defects or manufacturing inconsistencies. Should any component fail to meet the specified performance criteria under normal, approved heavy-duty operating conditions, our dedicated technical support team facilitates a straightforward, thoroughly documented claims process. We prioritize rapid evaluation and resolution, ensuring that fleet maintenance schedules are not disrupted by prolonged administrative delays. This transparent, professional approach to after-sales support significantly minimizes financial exposure for volume buyers and reinforces the long-term mechanical reliability of our heavy-duty braking components.
