Dongfeng VR truck parts front suspension Left flip bracket 5001013-C1305

Built to withstand the extreme static and dynamic loads of front suspension systems (supporting up to 60% of the truck’s front axle weight), the flip bracket uses premium Q355B low-alloy structural steel with a minimum yield strength of 355 MPa. The bracket undergoes precision forging and robotic welding to form a rigid, one-piece structure, with 10mm-thick reinforced sections at key stress points (e.g., flip axis housing, mounting hole peripheries) to distribute load evenly. Finite Element Analysis (FEA) testing confirms it can handle a static load of 9,000N (well above the VR’s front suspension load of 6,500N) without permanent deformation, and endure 150,000+ cycles of dynamic vibration (simulating rough road conditions) without fatigue cracking. Unlike low-carbon steel brackets that bend under stress, this high-strength design ensures stable support for the front suspension throughout the truck’s service life

Engineered to enable seamless flip operation of the front suspension (critical for maintenance or load adjustment), the bracket features a precision-machined flip axis housing (inner diameter 50mm) that fits the VR’s original flip pin with zero clearance. The housing’s inner surface is polished to a Ra 0.8μm finish, reducing friction between the bracket and flip pin by 55%—ensuring smooth, effortless flipping with minimal force (requiring only 120N of actuation force). It also includes a built-in stop pin groove that aligns with the suspension’s safety lock, preventing accidental flipping during driving and ensuring secure positioning when the suspension is in use. Unlike incompatible flip brackets that cause jamming or misalignment, this design maintains the front suspension’s flip functionality, simplifying maintenance tasks like leaf spring replacement or axle inspection

Designed to resist corrosion from road salt, mud, and moisture (common in front suspension underbody environments), the bracket undergoes a comprehensive three-stage anti-corrosion treatment. First, a zinc phosphate conversion coating (70μm thickness) creates a porous base to enhance coating adhesion. Next, an electrophoretic primer (90μm) is applied to form a uniform moisture barrier, followed by a thermosetting polyester topcoat (60μm, RAL 7035 gray) that resists chipping, fading, and chemical damage from diesel or road deicers. This coating system passes 1,300 hours of neutral salt spray testing (equivalent to 11 years of road salt exposure) without rust or coating peeling. The mounting holes and flip axis housing are also treated with anti-seize compound to prevent thread corrosion and ensure easy disassembly during maintenance

Designed for hassle-free replacement by fleet technicians or DIY owners, the bracket simplifies installation with precision-machined features and user-friendly design. All mounting holes are drilled with H8 tolerance (ensuring perfect bolt fit) and deburred to avoid damaging bolt threads or suspension components. Two laser-etched alignment marks on the bracket’s surface line up with reference points on the Dongfeng VR’s front suspension frame, eliminating guesswork and reducing installation time by 45% (typically 25–30 minutes). The package includes all necessary hardware: 4 M14×45mm high-tensile bolts, lock washers, and a rubber gasket (pre-cut to fit the frame contact surface for vibration damping). Installation steps are straightforward: clean the frame mounting surface, align the bracket’s marks with the frame reference points, secure the bolts to the specified torque (110 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)