Dongfeng VR truck parts Right Tilt Arm with Rubber Bushing Assembly 5001026-C1101

Designed to work in tandem to reduce vibration and noise during cab tilting and driving, the assembly combines a rigid tilt arm with a high-performance rubber bushing. The rubber bushing is made of EPDM (ethylene propylene diene monomer) rubber with a 70 Shore A hardness—offering optimal flexibility to absorb vibration while maintaining structural support. It features a two-piece design (inner metal sleeve + outer rubber layer) that reduces friction between the arm and pivot pin by 60%, ensuring smooth cab tilting with minimal force (requiring only 80N of operating force, half that of worn assemblies). The bushing also isolates metal-to-metal contact, preventing rattling noise during driving and protecting the tilt arm from impact damage. Unlike tilt arms with rigid bushings that transfer vibration, this synergetic design improves operator comfort and extends the lifespan of the tilt mechanism

Built to withstand the high torque and static loads of cab tilting (supporting up to 30% of the VR’s cab weight), the tilt arm uses 40Cr alloy steel (heat-treated to HRC 38–42) for exceptional tensile strength (980 MPa) and impact resistance (25 kJ/m²). The arm undergoes precision forging to create a seamless, uniform structure—eliminating weak points from welding or casting. Critical sections (e.g., mounting holes, bushing housing) are reinforced with a 5mm-thick wall, capable of withstanding 3,000N of lateral force without bending. Finite Element Analysis (FEA) testing confirms the arm endures 5,000+ cab tilt cycles (equivalent to 7 years of heavy use) without fatigue cracking. Unlike low-carbon steel tilt arms that deform under load, this high-strength design ensures reliable cab support and smooth tilting throughout the truck’s service life

Engineered to resist wear from pivot movement and corrosion from underbody contaminants, the assembly features dual protective treatments. The tilt arm’s surface is coated with a zinc-nickel alloy (15μm thickness) that provides 10x better corrosion resistance than standard zinc plating—passing 1,000 hours of neutral salt spray testing without rust. The arm’s bushing housing is precision-machined to a Ra 0.8μm surface finish, reducing friction with the rubber bushing and preventing premature bushing wear. The rubber bushing is treated with a UV-stabilized additive to prevent hardening or cracking from sun exposure, maintaining flexibility for 6+ years. Unlike uncoated tilt arms that rust or wear quickly, this dual-protection design ensures the assembly remains functional in rain, snow, or dusty off-road conditions

Designed for hassle-free replacement by fleet technicians or DIY owners, the assembly arrives fully pre-assembled (rubber bushing already pressed into the tilt arm)—eliminating the need for specialized pressing tools. It includes all necessary hardware: 2 M10×30mm stainless steel bolts, lock washers, and a tube of anti-seize compound for the pivot pin. Installation takes 20–25 minutes: remove the old arm by unscrewing the frame bolts and sliding out the pivot pin, clean the pivot pin and frame mounting surface, slide the new assembly onto the pivot pin, align the mounting holes with the frame, torque the bolts to 65 N·m, and apply anti-seize to the pivot pin. No post-installation adjustment is needed—the pre-assembled bushing ensures proper alignment with the tilt mechanism. Each unit undergoes dimensional verification via CMM, load testing, and bushing fit checks, backed by a 24-month warranty against defects (e.g., arm bending, bushing cracking, corrosion)