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The 4718 Brake Lining, identified by FMSI# 4718, is a heavy-duty component engineered for ROR systems and trailers—with a unique wide-format design. Its 203.2 width (nearly 60% wider than standard 127-width linings) delivers enhanced braking surface area, making it ideal for high-demand applications. Designed for drum size 419, it also features an arc length of 189.1/194.6 and a thickness range of 21.2/17.6-20.0/12.0. Developed by Dingchi, it supports GAWR of 20,000 lbs and 23,000 lbs, with capacity for higher loads. Fully FMVSS 121 compliant, it meets safety standards for heavy transport. Whether used in long-haul trailers, ROR waste vehicles, or heavy-cargo carriers, the 4718’s wide design ensures efficiency and durability.
The 4718’s 203.2 width increases contact area with the drum, delivering: 1) Better stopping power (more friction for faster stops); 2) Reduced wear (force spread across a larger surface); 3) Improved heat dissipation (less fade). This makes it ideal for heavy-cargo trailers requiring reliable braking.
Its 189.1/194.6 arc length accommodates minor drum wear, ensuring consistent contact. The 21.2/17.6-20.0/12.0 thickness balances durability and flexibility, ensuring the lining adapts to drum geometry while withstanding high stress.
Dingchi’s blend handles 20,000-23,000 lbs GAWR, using heat-resistant materials that maintain friction at 600°F. This prevents fade during frequent stops (e.g., urban routes, downhill driving), ensuring performance for ROR and trailer applications.
Meeting FMVSS 121 testing (efficiency, fade resistance, structural integrity) guarantees the 4718 meets federal standards, providing fleets with safety assurance and regulatory compliance.
Flatbed trailers (machinery), dry vans (dense freight), and bulk material trailers use the 4718’s wide design for reliable stopping. Its wear resistance makes it ideal for long-haul transport, minimizing maintenance.
ROR waste trucks (dumpsters) and construction debris carriers rely on the 4718’s even force distribution. It handles load shifts and frequent stops, ensuring performance in urban or construction site operations.
Cross-country or daily delivery trailers benefit from the 4718’s durability. It adapts to weather conditions (rain, snow) and varied braking demands, ensuring consistent performance for extended trips.
The 203.2 width provides 60% more contact area than standard linings, delivering: 1) Faster stops (critical for heavy loads); 2) 30-40% longer service life (reduced wear); 3) Less fade (better heat dissipation). For high-demand trailers, this width improves safety and efficiency.
Compatibility depends on brake assembly space—its 203.2 width requires more room than standard linings. Check your trailer’s manual for maximum lining width or measure the assembly space. Consult a specialist to avoid fitment issues that reduce performance.
It addresses heat with: 1) Wide surface area (spreads heat to reduce hotspots); 2) Heat-resistant materials (retains friction at 600°F). This ensures consistent braking even after repeated heavy stops (e.g., downhill driving, urban routes).
To maximize performance: 1) Inspect thickness (maintain above 12.0); 2) Clean the drum (remove rust/glazing); 3) Check alignment (avoid uneven wear); 4) Avoid overloading (stick to 23,000 lbs GAWR). These steps extend service life by 40% or more.
