油封系列, 产品中心

The Dongfeng Truck 460 Series Oil Seals represent the pinnacle of sealing technology for Dongfeng’s heavy-duty 460 series trucks, engineered for the most extreme operating conditions in mining, construction, military logistics, and ultra-long-haul freight transportation. Designed to withstand unprecedented torque, severe vibrations, abrasive environments, and extreme temperatures, these oil seals deliver unmatched durability, zero-leak performance, and extended service life. Built with cutting-edge materials and precision manufacturing, the 460 series oil seals ensure optimal reliability, reduce maintenance costs, and maximize uptime for Dongfeng’s most powerful commercial vehicles.

Key Applications & Compatibility

• Vehicle Models:
  • Dongfeng 460 Series: EQ4650, EQ4600, EQ4550 (8×4, 10×6, and specialized mining/military variants).
  • Compatible Components:
    • Engine: High-performance crankshaft front/rear seals, turbocharger seals, and camshaft end seals.
    • Transmission: Heavy-duty input/output shaft seals, transfer case seals, and clutch hydraulic system seals.
    • Rear Axle: Planetary differential seals, inter-axle differential seals, and wheel hub seals.
    • Front Axle: Heavy-duty steering gearbox seals, kingpin seals, and suspension pivot seals.

Technical Specifications

1. Material & Construction:
   • Seal Lip:
     • Nitrile Rubber (NBR): Standard option for general-purpose use (temperature range: -45°C to +120°C).
     • Fluorocarbon Rubber (FKM/Viton): High-temperature variant (up to +240°C) for turbocharged, high-output diesel engines.
     • PTFE (Teflon)-Coated Lips: Ultra-low friction, high wear resistance, and dry-running capability for high-speed applications.
   • Metal Case:
     • Cold-Rolled Steel (SPCC): Cost-effective, corrosion-resistant for standard use.
     • Stainless Steel (SS316L): Marine-grade option for highly corrosive environments (mining, coastal operations).
   • Spring: High-tensile stainless steel spring with anti-corrosion coating for consistent lip pressure under extreme loads.
2. Common Dimensions (Example: Rear Axle Planetary Differential Seal):
   • Inner Diameter (ID): ~100–120 mm (3.94–4.72 inches).
   • Outer Diameter (OD): ~130–150 mm (5.12–5.91 inches).
   • Width: ~20–25 mm (0.79–0.98 inches).
   • Design Type: Quadruple-lip with anti-extrusion rings, dual pressure relief grooves, and a reinforced dust exclusion lip for heavy-duty sealing.
3. Performance Characteristics:
   • Pressure Rating: Up to 2.0 MPa (290 psi) for high-pressure hydraulic, transmission, and differential systems.
   • Speed Rating: Up to 7,000 RPM (depending on seal type and lubrication).
   • Temperature Range:
     • NBR: -45°C to +120°C (-49°F to +248°F).
     • FKM: -30°C to +240°C (-22°F to +464°F).
   • Chemical Compatibility: Resistant to mineral oils, synthetic lubricants, diesel fuel, hydraulic fluids, mild acids, and alkalis.