油封系列, 产品中心

The 东风卡车300H系列油封 are a premium line of sealing solutions engineered specifically for Dongfeng’s 300H series heavy-duty commercial vehicles, including freight trucks, construction haulers, and specialized transport fleets. Designed to meet the rigorous demands of high-torque engines, transmissions, and axles, these oil seals deliver exceptional leak prevention, thermal resistance, and durability. Built with advanced materials and precision manufacturing, the 300H oil seals ensure reliable performance under extreme operating conditions, reducing maintenance costs and extending component lifespan.

Key Applications & Compatibility

• Vehicle Models:
  • Dongfeng 300H Series: EQ3250, EQ3310, EQ3160, and variants (6×4, 8×4 configurations).
  • Compatible Components:
    • Engine: Crankshaft front/rear seals, camshaft seals, and valve cover gaskets.
    • Transmission: Input/output shaft seals, extension housing seals, and shift fork seals.
    • Rear Axle: Differential pinion seals, wheel hub seals, and axle shaft seals.
    • Front Axle: Steering gearbox seals and kingpin seals.

Technical Specifications

1. Material & Construction:
   • Seal Lip:
     • Nitrile Rubber (NBR): Standard option for general-purpose use (temperature range: -30°C to +120°C).
     • Fluorocarbon Rubber (FKM/Viton): High-temperature variant (up to +200°C) for turbocharged engines or severe-duty applications.
     • PTFE (Teflon)-Coated Lips: Ultra-low friction and high wear resistance for high-speed shafts.
   • Metal Case:
     • Cold-Rolled Steel (SPCC): For cost-effective, corrosion-resistant performance.
     • Stainless Steel (SS304): Optional for marine, mining, or salt-exposed environments.
   • Spring: High-tensile carbon steel spring with anti-corrosion coating for consistent lip pressure.
2. Common Dimensions (Example: Rear Axle Pinion Seal):
   • Inner Diameter (ID): ~70–90 mm (2.76–3.54 inches).
   • Outer Diameter (OD): ~100–120 mm (3.94–4.72 inches).
   • Width: ~12–18 mm (0.47–0.71 inches).
   • Design Type: Double-lip with dust exclusion lip for enhanced contamination protection.
3. Performance Characteristics:
   • Pressure Rating: Up to 0.8 MPa (116 psi) for hydraulic and high-pressure applications.
   • Speed Rating: Up to 4,000 RPM (depending on seal type and lubrication).
   • Temperature Range:
     • NBR: -30°C to +120°C (-22°F to +248°F).
     • FKM: -20°C to +200°C (-4°F to +392°F).
   • Chemical Compatibility: Resistant to mineral oils, synthetic lubricants, and mild hydraulic fluids.