Commercial vehicle axle oil seal

Bidirectional Precision Sealing: Composite structure of main lip + dust-proof auxiliary lip. The main lip is equipped with a built-in stainless steel tension spring to dynamically compensate for half-shaft runout and prevent gear oil leakage (dynamic low leakage ≤ 0.1g/h, static zero leakage). The auxiliary lip effectively isolates dust, sand and rainwater; high-end models with reflow grooves can channel leaked oil back to the axle housing. Some labyrinth structures improve dust-proof efficiency by over 80% and boast waterproof capacity several times that of conventional models.

Heavy-Duty Working Condition Adaptability: The cold-rolled steel plate framework provides rigid support, and the NBR/HNBR sealing lips resist corrosion from mineral/synthetic gear oils. Withstanding a temperature range of -40℃~120℃ (up to 150℃ for high-temperature models), pressure ≤0.3MPa and half-shaft speed ≤3000r/min, it can cope with vibrations and impacts from long-distance high-speed driving, mountain-road heavy loading and frequent start-stops, maintaining stable sealing performance.

Durable, Wear-Resistant & Self-Compensating: Uniform contact pressure on the sealing lip ensures a wear rate ≤0.02mm per 10,000 km and a service life ≥100,000 km under standard operating conditions. Spring tension automatically compensates for lip wear and accommodates minor radial/axial runout of the half-shaft. The rubber coating on the outer side of the framework forms an interference fit with the axle housing to prevent leakage at the mounting surface.

Low Friction & Maintenance-Friendly: The low-torque lip design reduces shaft wear and temperature rise; some models feature a grease storage structure to minimize dry friction. The press-fit/cassette design enables quick installation, while the labyrinth structure further enhances protection rating, lowering maintenance costs and failure rates.

Safety Protection: It prevents lubrication failure and contaminant intrusion, avoids premature wear, abnormal noise, seizure and other faults of gears and bearings, ensures driving safety and improves vehicle operational efficiency.

1.Strong Working Condition Adaptability: Suitable for drive axles/steering axles of heavy trucks/light trucks/buses; customized models are available for high-temperature, wading, mining and other special scenarios.

2.Low Total Cost of Ownership: Service life ≥100,000 km reduces replacement frequency, cuts down labor and parts costs, and extends axle maintenance intervals.

3.Installation & After-Sales Friendly: Press-fit/cassette design enables easy installation; some models are equipped with positioning buffer blocks to avoid assembly deviation and shaft surface damage.

4.Upgraded Materials & Structure: HNBR/FKM outperforms conventional rubber in temperature and oil resistance; labyrinth/full rubber-coated structures enhance protection, while the low-friction design reduces energy consumption.

5.OEM Compatibility & Versatility: Precision-engineered for specific axle models, it forms an interference fit with axle housings/half shafts, features high interchangeability and is compatible with mainstream commercial vehicle axle brands.