Dongfeng VR truck parts front suspension Left flip bracket 5001013-C1306

Built to withstand the extreme static and dynamic loads of front suspension systems (supporting up to 65% of the VR’s front axle weight), the bracket is crafted from premium Q355B low-alloy structural steel with a minimum yield strength of 355 MPa. The bracket undergoes precision forging and robotic MIG welding to form a seamless, rigid structure, with 11mm-thick reinforced gussets at key stress points (e.g., flip axis housing, mounting hole edges) that distribute load over a larger area. Finite Element Analysis (FEA) testing confirms it can handle a static load of 9,500N (exceeding the VR’s typical front suspension load of 7,000N) without permanent deformation, and endure 160,000+ cycles of dynamic vibration (simulating potholes and rough roads) without fatigue cracking. Unlike low-carbon steel brackets that bend under stress, this heavy-duty design ensures reliable support for the front suspension throughout the truck’s 10+ year service life

Engineered to enable seamless flip operation (critical for front suspension maintenance, such as leaf spring replacement), the bracket features a precision-machined flip axis housing (inner diameter 52mm) that mates perfectly with the VR’s original flip pin. The housing’s inner surface is polished to a Ra 0.7μm finish, reducing friction between the bracket and pin by 60%—allowing smooth flipping with just 115N of actuation force (30% less than worn aftermarket brackets). It also includes a built-in safety detent groove that engages with the suspension’s lock pin, preventing accidental flipping during driving and ensuring the bracket stays securely in place when the suspension is active. Unlike poorly designed flip brackets that jam or stick, this optimized design simplifies maintenance tasks, cutting down on repair time for fleet operators

Designed to resist corrosion from road salt, mud, and water splashes (common in front suspension underbody environments), the bracket undergoes a rigorous three-stage anti-corrosion treatment. First, a zinc phosphate conversion coating (75μm thickness) creates a porous base to enhance coating adhesion. Next, an electrophoretic primer (95μm) is applied to seal against moisture, followed by a thermosetting polyester topcoat (65μm, RAL 7035 gray) that resists chipping, fading, and chemical damage from diesel or road deicers. This coating system passes 1,400 hours of neutral salt spray testing (equivalent to 12 years of road salt exposure) without rust or coating peeling. The flip axis housing and mounting holes are also treated with a high-temperature anti-seize compound to prevent thread corrosion and ensure easy disassembly during future maintenance

Designed for hassle-free replacement by technicians or DIY owners, the bracket simplifies installation with user-friendly, precision-machined features. All mounting holes are drilled to H8 tolerance (ensuring a perfect fit with OEM bolts) and deburred to avoid damaging bolt threads or suspension components. Two laser-etched alignment marks on the bracket’s top surface line up with reference points on the VR’s front frame, eliminating guesswork and reducing installation time by 50% (typically 20–25 minutes). The package includes all necessary hardware: 4 M14×45mm high-tensile bolts, lock washers, and a rubber vibration-damping pad (pre-cut to fit the frame contact surface). Installation steps are straightforward: clean the frame mounting area, align the bracket’s marks with the frame, torque the bolts to 115 N·m, and attach the flip linkage. Each unit undergoes dimensional verification via CMM, load testing, and coating adhesion checks, backed by a 36-month warranty against defects (e.g., bending, cracking, coating failure)