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Designed for Class 7–8 commercial tractors, intermodal dry vans, and line-haul trailers across North America, these Brake Linings FMSI 4311 provide a dependable foundation reline solution. Tailored to fit 16.5" x 7" commercial brake shoes, this non-asbestos friction set delivers stable deceleration, exceptional thermal fade resistance, and uniform drum wear across demanding freight corridors.
Maintaining reliable stopping torque and meeting strict FMVSS-121 regulatory standards under full payload demands commercial-grade friction materials that withstand sustained thermal cycles. High-mileage interstate hauling and continuous downhill braking generate extreme wheel-end temperatures, where substandard compounds experience surface glazing, accelerated thickness loss, and drum grooving.Our Brake Linings FMSI 4311 offer precise OE-standard dimensional accuracy and rugged mechanical durability engineered for North American fleet operations.
High-Density Non-Asbestos Formulation
Manufactured from an advanced low-metallic, non-asbestos composite, each 4311 friction block undergoes high-pressure hydraulic molding and controlled thermal post-curing. This resilient formulation maintains a balanced friction coefficient across operating temperatures up to 750°F (400°C), eliminating brake fade and providing dependable stopping distance during continuous heavy deceleration.
Precision Hole Alignment & Drum-Friendly Wear
Every lining block features factory-drilled and chamfered rivet holes that align cleanly with standard 16.5-inch brake shoe steel tables, ensuring high shear strength and vibration resistance under sudden torque spikes. The optimized friction matrix promotes uniform contact across the brake drum surface, significantly minimizing drum scoring, heat cracking, and premature edge taper.
Key Features & Specifications
Target Foundation Fitment: Engineered specifically for North American standard FMSI 4311 pattern commercial brake shoes on 16.5" x 7" drum configurations.
FMVSS-121 Rated Compound: Commercial-grade non-asbestos friction material delivers dependable stopping distances, low dusting, and high thermal stability.
Superior Fade Resistance: Thermally post-cured to perform reliably under intense line-haul duty cycles with stable friction levels up to 750°F (400°C).
Precision Rivet Holes: CNC-machined hole locations ensure seamless mechanical riveting and maximum shear integrity on steel shoe cores.
Extended Component Service Life: Smooth, balanced wear characteristics prevent drum micro-grooving, heat spotting, and uneven lining taper.
Frequently Asked Questions (FAQ)
Q1: Which vehicle applications and axle configurations use these Brake Linings FMSI 4311?
A: These friction blocks are engineered for North American Class 7 and Class 8 commercial vehicles equipped with standard 16.5" x 7" foundation drum brakes across drive, steer, and trailer axles.
Q2: What friction compound is utilized in these Brake Linings FMSI 4311?
A: They feature a heavy-duty, low-metallic non-asbestos organic (semi-metallic) formulation engineered for 20,000 to 23,000 lbs GAWR commercial fleet operations.
Q3: Are the rivet holes factory pre-drilled?
A: Yes. All 4311 lining segments come precision-drilled and counterbored to match industry standard rivet layouts for quick mechanical attachment onto bare steel shoe cores.
Q4: How do these linings perform under sustained mountain descents and high-heat cycles?
A: The friction material is post-cured under high temperature to prevent brake fade and surface glazing, ensuring rapid heat dissipation and reliable torque recovery under severe braking cycles.
Q5: Can you provide private labeling, part number stamping, and palletized bulk shipping?
A: Yes. As a direct manufacturing source, we provide custom edge-code stamping, private-brand packaging, and export-grade pallet packaging tailored for North American parts distributors and fleet suppliers.
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