Oil seal, Products

The Dongfeng 153 Truck Oil Seal Series is a comprehensive range of high-performance sealing solutions engineered for the transmission, differential, axle, and engine components of Dongfeng’s iconic 153 series medium- and heavy-duty trucks. Designed to prevent oil leaks, contamination, and premature wear, these oil seals combine advanced materials, precision manufacturing, and OEM-compliant designs to ensure reliable operation under harsh conditions. Whether for the front/rear axles, steering gearboxes, or engine crankshafts, the 153 series oil seals deliver durability, thermal resistance, and cost-efficient maintenance for fleet operators and service workshops.

Key Applications & Compatibility

• Vehicle Models:
  • Dongfeng 153 Series: EQ153, EQ1168G, EQ1141G, and variants (4×2, 6×4, and 8×4 configurations).
  • Other Compatible Models: Dongfeng EQ140, EQ145, and EQ1092 series trucks (retrofit and replacement parts).
• Components Covered:
  • Rear Axle: Differential pinion seals, wheel hub seals, and axle shaft seals.
  • Front Axle: Steering gearbox seals and kingpin seals.
  • Transmission: Input/output shaft seals and extension housing seals.
  • Engine: Crankshaft front/rear seals, camshaft seals, and valve cover seals.

Technical Specifications

1. Material & Construction:
   • Seal Lip:
     • Nitrile rubber (NBR) for standard applications (temperature range: -30°C to +120°C).
     • Fluorocarbon rubber (FKM/Viton) for high-temperature environments (up to +200°C).
     • PTFE (Teflon)-coated lips for low-friction, high-wear resistance.
   • Metal Case:
     • Cold-rolled steel (SPCC) or stainless steel (SS304) for corrosion resistance.
     • Galvanized or zinc-plated finish for extended durability.
   • Spring: High-carbon steel spring with anti-corrosion treatment for consistent lip pressure.
2. Common Dimensions (Example: Rear Axle Pinion Seal):
   • Inner Diameter (ID): ~60–80 mm (2.36–3.15 inches).
   • Outer Diameter (OD): ~90–110 mm (3.54–4.33 inches).
   • Width: ~10–15 mm (0.39–0.59 inches).
   • Design Type: Single-lip or double-lip with garter spring (customizable for pressure/vacuum applications).
3. Performance Characteristics:
   • Pressure Resistance: Up to 0.5 MPa (72.5 psi) for hydraulic seals.
   • Speed Rating: Up to 3,000 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).
   • Compatibility: Works with mineral oils, synthetic lubricants, and mild hydraulic fluids.