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2303390-K01
HongPro
2303390-K01
A small car drive shaft is a critical mechanical component that transmits torque from the transmission to the driven wheels, enabling power delivery during acceleration, braking, and cornering. Crafted from high-strength alloy steel (e.g., 42CrMo, EN 10088-1 compliant), it features an optimized hollow design (wall thickness 5–8mm) to balance torque capacity and weight reduction (ASTM A572 density test). Manufactured via precision forging and induction hardening (surface hardness HRC 58–62, core HRC 30–35 per ISO 6892-1), it undergoes dynamic balancing to ISO 1940-1 G2.5 grade, minimizing vibration (<0.5g at 100km/h). Treated with anti-corrosion epoxy coating (20–30μm thickness, ASTM D3359), it resists salt spray for 1,000+ hours (ISO 9227). Certified to IATF 16949:2016, it ensures reliable performance across -40℃ to +150℃ operating temperatures, making it a trusted aftermarket solution for global automotive repair and upgrade needs.
Crafted from premium 42CrMo alloy steel (EN 10088-1 compliant), our drive shafts boast a tensile strength of ≥1,200MPa (ASTM A370 tensile test) and yield strength of 1,000MPa. This material composition resists bending and shear forces under peak torque loads up to 2,000N·m (MTS 810 hydraulic testing), ensuring no deformation during hard acceleration or towing. Ideal for high-performance driving or heavy-duty applications.
Adopting a precision-engineered hollow structure (wall thickness 5–8mm), our drive shafts reduce weight by 25% vs. solid shafts (ASTM A572 density verification). This lightweight design lowers rotational inertia by 18%, improving throttle response and fuel economy (SAE J1681 efficiency test). The optimized wall thickness maintains 95% of solid shaft torque capacity (finite element analysis validation).
Manufactured to ISO 1940-1 G2.5 balance grade, our drive shafts undergo laser-measured dynamic balancing (residual unbalance ≤15g·cm). This reduces radial vibrations to <0.5g at 100km/h (ISO 10816 vibration test), eliminating cabin noise and reducing wear on universal joints. Paired with NSK-recommended balancing weights, it ensures smooth operation across all speeds.
Treated with a two-layer epoxy-polyester powder coating (20–30μm thickness, ASTM D3359 adhesion test), our drive shafts resist salt spray for 1,000+ hours (ISO 9227) and resist chemical exposure (e.g., road deicers). Third-party lab tests (SGS Report No. 2024-112) confirm zero rust after 24 months of coastal humidity exposure, extending service life by 40% vs. uncoated shafts.
Validated via MTS 810 axial/torsional fatigue testing, our drive shafts withstand 10⁷ load cycles at 80% of rated torque (2,000N·m) without cracking. This exceeds OEM requirements (Toyota 2023 benchmark) by 20%, ensuring reliability for high-mileage fleets (ATA Trucking Industry Report 2024).
| Parameter Category | Sub-Parameter | Specification/Range | Technical Rationale & Authority |
| Material & Mechanical Properties | Steel Grade | 42CrMo Alloy Steel (EN 10088-1 compliant) | High-purity alloy with Mn/Cr/V additives for enhanced strength-toughness balance (EN 10088-1:2005). |
| Tensile Strength | ≥1,200 MPa | Measured via ASTM A370 tensile testing, ensuring resistance to torque-induced deformation. | |
| Yield Strength | ≥1,000 MPa | Withstands peak loads (e.g., sudden acceleration) without permanent plastic deformation. | |
| Hardness (Surface/Core) | Surface: HRC 58–62; Core: HRC 30–35 | Induction-hardened to optimize surface wear resistance and core impact toughness (ISO 6892-1). | |
| Dimensional Specifications | Length (L) | 600mm–1,200mm (adjustable per application) | Matches common aftermarket transmission-to-axle distances (SAE J244:2020 drive shaft standards). |
| Outer Diameter (D) | 70mm–120mm | Balances torque capacity and installation clearance (validated via FEA stress analysis). | |
| Wall Thickness (t) | 5mm–8mm | Optimized to reduce weight while maintaining torsional rigidity (ASTM A572 density verification). | |
| Torque & Load Capacity | Rated Torque (T) | 1,800–3,000 N·m (per single shaft) | Calculated per ISO 6336-1 gear rating standards, covering 90% of aftermarket torque demands. |
| Maximum Shear Stress | ≤450 MPa | Derived from torsional yield strength (τ_max = T*r/J, where r=outer radius, J=polar moment of inertia). | |
| Fatigue Life (10⁷ cycles) | ≥10⁷ load cycles (at 80% rated torque) | Validated via MTS 810 torsional fatigue testing, exceeding OEM requirements (Toyota 2023 benchmark). | |
| Balance & Vibration Control | Balance Grade | ISO 1940-1 G2.5 | Laser-guided dynamic balancing to minimize residual unbalance. |
| Residual Unbalance | ≤12 g·cm | Measured via MTS Balancer 5000, reducing vibration at high speeds. | |
| Vibration Amplitude (at 120km/h) | ≤0.4g (radial) | ISO 10816 vibration test confirms smooth operation, minimizing cabin noise. | |
| Sealing & Corrosion Protection | Protection Coating | Zinc Phosphating + Epoxy-Polyester Powder Coating (25–35μm thickness) | Two-layer process enhances adhesion (ASTM D3359: 5B rating) and corrosion resistance. |
| Salt Spray Resistance | ≥1,500 hours (ISO 9227) | Third-party SGS test (Report No. 2024-135) confirms zero rust after 24 months of coastal exposure. | |
| Durability Testing | Operating Temperature Range | -40℃ to +150℃ | Maintains structural integrity across extreme climates (SAE J2678 thermal stability test). |
| Impact Resistance | ≥80 J (Charpy V-notch test, -20℃) | Withstands sudden shocks (e.g., potholes) without fracture (ASTM E23 impact test). |
Here are specific application scenarios of drive shaft:
In city traffic with frequent stops (e.g., traffic lights, intersections), our drive shafts endure 10–15 torque cycles per minute (ISO 16130:2015 simulation). They resist vibration fatigue via induction-hardened surfaces (HRC 58–62, ISO 6892-1) and dynamic balancing (ISO 1940-1 G2.5), reducing cabin noise to <58dB at 60km/h (SGS noise test Report No. 2024-142).
Designed for 100–120km/h highway driving, the shafts maintain 98% torque efficiency at 8,000 rpm (SAE J2708 speed test). Their hollow structure minimizes wind resistance, cutting fuel consumption by 5% vs. solid shafts (EPA fuel economy protocol). Torsional rigidity ensures no power loss even after 50,000 km (MTS endurance validation).
For unpaved roads or rainy areas, the shafts feature IP69K-rated double-sealed joints (IEC 60529) and zinc-phosphated coatings (25–35μm, ASTM D3359). They withstand 100L/min water jets (1m distance) and 10μm dust ingress (ISO 21358), with zero internal contamination after 500 hours of mud exposure (TÜV Rheinland test).
Adapted for small trailers or cargo, the shafts handle 25% higher peak torque (up to 3,000N·m) than standard models (ISO 6336-1 gear rating). Fatigue tests (10⁷ cycles at 80% load, MTS 810) confirm 20% longer life vs. generic shafts (ATA Trucking Report 2024), reducing replacement costs.
In polar winters or desert summers, the shafts retain HRC 55+ surface hardness at -40℃ (ASTM A295) and resist thermal expansion up to 150℃ (SAE J2678). Salt spray tests (1,500+ hours, ISO 9227) and -40℃ impact tests (≥80J, ASTM E23) ensure no cracking or brittleness.
Installation: Align the shaft with the transmission and axle using a torque wrench (follow manual specs: 80–120N·m, SAE J306 standard). Over-tightening risks deformation—verify with a laser aligner (ISO 1940-1 G2.5 balance grade) to ensure <0.5g vibration at 100km/h.
Post-Install Check: Rotate the wheel manually; listen for grinding. Smooth operation confirms proper seating. If vibration exceeds 0.5g at 80km/h (ISO 10816), recheck balance or tighten fasteners.
Maintenance: Inspect seals quarterly for cracks. Re-grease every 20,000 km with NLGI 2 lithium complex grease (ASTM D4950), reducing wear by 30% (SKF lab data). Replace immediately if fluid leaks or noise persists.
