CNC EN24 gear housing

Description

1. Product Overview
The CNC EN24 Gear Housing is a high-strength, precision-engineered component designed for heavy-duty power transmission systems in industrial machinery and automotive drivetrains. Manufactured from nickel-chromium-molybdenum alloy steel (EN24), it delivers exceptional tensile strength, fatigue resistance, and impact toughness under cyclic loading conditions. Its strategic value lies in enabling OEMs and aftermarket suppliers to reduce unplanned downtime and total cost of ownership (TCO) in mission-critical rotating equipment, positioning it as a preferred alternative to standard carbon steel housings in high-stress environments.

2. Key Specifications & Technical Characteristics

• Material Composition: EN24 (equivalent to AISI 4340, 817M40) – Ni (1.30–1.70%), Cr (0.90–1.20%), Mo (0.20–0.30%), C (0.35–0.45%), Mn (0.45–0.70%)

• Heat Treatment Condition: Hardened and tempered to 28–32 HRC (customizable 25–38 HRC per order)

• Tensile Strength: 850–1000 MPa (min 850 MPa)

• Yield Strength (0.2% proof): 650–800 MPa

• Dimensional Accuracy: ISO 2768-f (fine) or better; CNC-turned & milled with ±0.01 mm tolerance on critical mating surfaces

• Surface Finish: Ra ≤ 1.6 µm (ground bearing seats and flange faces)

• Physical Form: Fully machined, one-piece or split-type gear housing with pre-drilled mounting holes, oil ports, and labyrinth sealing grooves

• Corrosion Protection: Zinc phosphate coating + temporary rust-preventive oil (ISO 12944 compliant)

• Packaging Options: Individual PE foam wrapping + corrugated export cartons; palletized shrink-wrap for bulk orders

• Shelf Life: 24 months when stored indoors (10–35°C, <60% RH) in original unopened packaging

3. Core Industrial Applications

• Primary Industries: Heavy earthmoving equipment, mining conveyors, wind turbine gearboxes, marine propulsion systems, and steel mill rolling mills.

• Specific Use Cases:

  • Final drive housings for excavators and bulldozers – withstands high shock loads and torsional vibration

  • Input/ output gear casings in industrial gearboxes – maintains alignment under thermal expansion up to 150°C

  • Pump drive housings in oil & gas – resists hydrogen embrittlement and stress corrosion cracking

• Why EN24 outperforms alternatives: Compared to EN8 or cast iron housings, EN24 offers 40% higher fatigue strength and double the impact toughness, reducing housing fracture risk in cold-start or overload conditions. Its through-hardened consistency avoids localized deformation seen in case-hardened alternatives, lowering warranty claims by an average of 22% in field trials.

4. Competitive Advantages

• Quality Consistency: 100% dimensional inspection via CMM; third-party material test certificates (EN 10204 3.1) supplied per batch. ISO 9001:2015 and IATF 16949 certified production.

• Supply Reliability: Dual-sourced billets from EU and Asian mills; buffer stock of 15,000+ units ensures <10 working days lead time for repeat orders.

• Logistics Capability: Direct ex-works, FOB, or CIF shipment via sea/air from three regional hubs (Asia, Europe, GCC); real-time tracking integration with client ERP systems.

• Price Competitiveness: 12–18% lower landed cost than Western European equivalents due to automated CNC lines and batch optimization, without grade substitution.

• Sustainability: 92% of machining swarf recycled; EN24 housings are 100% remeltable. RoHS and REACH compliant.

• Technical Support: Free 2D/3D drawing validation before production; on-call metallurgical advice for application-specific heat treatment.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 50 units (trial batch) / 200 units (standard)

• BULK 20MT Order Equivalent: Approx. 1,200–1,500 units depending on housing size (typical unit weight 13–17 kg)

• Loading Capacity per 20FT Container: 20 metric tons (approx. 1,300–1,600 units, palletized)

• Loading Capacity per 40FT Container: 26 metric tons (approx. 1,800–2,200 units, palletized)

• Lead Time: 25 days for MOQ; 35 days for bulk (ex-works)

• Payment Terms: Letter of Credit (L/C at sight) or 30% advance / 70% against copy of bill of lading