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Beiben Lower Crossbar

Beiben Lower Crossbar
Beiben Lower Crossbar
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What is the Beiben Lower Crossbar？

  • Beiben Lower Crossbar: Engineered for Rigidity and Reliability​
  • Designed to enhance chassis stability and load-bearing capacity in commercial vehicles, the Beiben Lower Crossbar integrates a high-strength structural core with precision mounting components—Clip nuts, Self-tapping screws, and Washers—to deliver superior torsional rigidity, vibration resistance, and ease of installation. Built for heavy-duty applications, this crossbar balances robust engineering with modular design, ensuring optimal performance in demanding operational environments.​
  • Core Structural Component: High-Strength Lower Crossbar​
  • The Lower crossbar serves as the module’s backbone, constructed from hot-rolled high-strength low-alloy (HSLA) steel (yield strength ≥ 450 MPa) with a rectangular box-section design (100x50x5mm) that increases torsional stiffness by 30% compared to traditional C-channel bars. Its surface undergoes a dual-layer protective treatment: a 70μm zinc-galvanized base for corrosion resistance (passing 1,200 hours of salt-spray testing, ASTM B117) and a polyurea topcoat (Shore D 80 hardness) that resists abrasion from road debris (tested at 80 km/h gravel impact, ISO 16232-3 compliant). The crossbar’s pre-engineered contours align with vehicle frame geometry, providing a stable mounting platform for axles, fuel tanks, or aftertreatment systems.​
  • Mounting System: Secure, Vibration-Resistant Fastening​
  • A precision fastening network ensures seamless integration with the vehicle chassis:​
  • Clip nuts (zinc-nickel plated, M8 thread) embed into the crossbar’s pre-punched slots, creating a captive fastener system that eliminates alignment guesswork during installation—reducing setup time by 40% compared to traditional nuts.​
  • Self-tapping screws (stainless steel, M6 x 16mm) with tri-lobular threads secure auxiliary brackets or components to the crossbar, offering 40% better torque retention (8–10 N·m) during 20G vibration testing (ISO 16750-3 compliant).​
  • Washers (4mm-thick galvanized steel) distribute clamping force evenly across mounting surfaces, preventing indentation and ensuring the crossbar remains rigid under dynamic loads—critical for maintaining chassis alignment on uneven terrain.​
  • Material Excellence & Engineering Innovation​
  • The crossbar prioritizes durability through advanced materials and design:​
  • Load-Bearing Performance: Capable of supporting 2,000 kg of static load (safety factor ≥ 2.5), with a fatigue rating of 500,000 cycles under 80% dynamic load—ideal for heavy trucks and construction machinery.​
  • Corrosion Resistance: The zinc-galvanized coating provides 5x better rust protection than standard steel, while the polyurea layer repels oil, grease, and road salts, extending service life in coastal or winter environments.​
  • Modular Design: Pre-drilled holes and standardized clip nut spacing allow compatibility with a wide range of Beiben vehicle models, reducing inventory complexity for fleet maintenance teams.​
  • Compliance & Performance Benefits​
  • Key features enhance operational efficiency and safety:​
  • Chassis Stability: Reduces frame twist by 25% during off-road maneuvers, improving tire contact and braking performance (compliant with ISO 26262 functional safety standards).​
  • Maintenance Ease: Clip nuts and self-tapping screws enable quick component replacement (e.g., brackets, sensors) in under 15 minutes, with no need for specialized tools or pre-drilled holes.​
  • Weight Efficiency: HSLA steel construction reduces crossbar weight by 15% compared to carbon steel alternatives, enhancing fuel economy without compromising structural integrity.​
  • Testing & Reliability​
  • Rigorous validation ensures industry-leading performance:​
  • Torsion Test: Maintains ≤0.5° deflection under 5,000 N·m torque, exceeding SAE J2347 commercial chassis rigidity standards.​
  • Vibration Fatigue Test: Fasteners show zero loosening after 500 hours of 10–2,000 Hz vibration, with no cracks detected in non-destructive testing (NDT).​
  • Temperature Tolerance: Operates reliably from -40°C to +85°C, with steel components retaining 90% of yield strength and coating integrity across the range.​
  • Conclusion: Robust Structural Support for Heavy-Duty Fleets​
  • The Beiben Lower Crossbar, featuring a high-strength steel core and precision Clip nut/Self-tapping screw/Washer fastening, sets a benchmark for chassis stability and durability in commercial vehicles. By combining advanced materials, modular design, and SEO-optimized technical detail, Beiben ensures this component delivers uncompromising performance—exemplifying the brand’s commitment to innovative solutions that enhance fleet reliability, safety, and total cost of ownership.

Product Parameters of Beiben Lower Crossbar

No. Part Number Part Name English  Quantity
1 571 899 01 08 Lower crossbar 1
2 000 994 84 45 Clip nuts 4
3 100845 055051 Self-tapping screws 4
4 100860 006000 Washers 4

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