Truck Bearing Seals: The core solution for heavy-duty vehicle bearings
Why Are Truck Bearing Seals Critical?
In the complex conditions of heavy-duty trucks, bearings are subjected to extreme loads, muddy erosion, and temperature fluctuations. Truck-bearing seals are the first line of defense, directly determining bearing life and vehicle reliability:
Pollution protection: effectively block pollutants such as road dust, mud, metal chips (dust prevention efficiency is more than 99%)
Lubrication lockout: Reduced grease leakage (leakage ≤ 0.1g/1000km) through precision lip design
Dynamic sealing: adapt to high-speed rotation of bearings (maximum speed 6000r/min) and axial displacement (clearance 0.6-0.7mm)
Environmental Resistance: -40°C to +200°C Operating Temperature (FKM Material)
Case Study: T-HUB1 bearings with NSK's slurry sealing technology have a 40% longer service life and longer maintenance intervals of 200,000 km
Key Performance Indicators
| Parameter | Standard Range | Applicable scenarios | Material matching schemes |
| Work pressure |
≤30MPa |
Heavy-duty axles, steering systems | PTFE+ metal skeleton |
| Rotate speed |
≤20.3m/s(axial) |
Wheel bearings, drive shafts | HNBR+ spring reinforcement |
| Temperature tolerance |
-40℃ to +204℃ |
Desert heat/cold regions | Fluoroelastomer (FKM) |
| Media compatibility | Mineral oil/synthetic grease | All kinds of truck lubrication systems | Nitrile rubber (NBR) |
Material performance comparison (rubber seals)
| Material | Temperature range | Abrasion resistance | Oil resistance | Cost | Applicable scenarios |
| Nitrile rubber |
-30~ to 100℃ |
★★★☆ |
★★★★☆ |
Economical | Ordinary road transport |
| Hydrogenated nitrile rubber |
-40~ to 150℃ |
★★★★ |
★★★★☆ |
Mid-to-high-end | High-speed logistics vehicles |
| Viton |
-40~ to 204℃ |
★★★★☆ |
★★★★★ |
High | Mine/Polar Special Vehicles |
Industry certification and quality assurance system
Our products go through a triple certification system to ensure global compliance:
China National Standard: HG/T 3980-2007 Automobile Bearing Seal Standard (Tensile Strength≥12MPa)
Railway certification: CRCC 352226X2-2RZ type sealing cover certification (by Q/CR 678-2018)
International system: ISO/TS 16949 quality management in the automotive industry, the whole process can be traced
Quality inspection process:
Visual inspection: 100% visual inspection (no bubbles/missing corners/impurities)
Performance test: 72 hours endurance test under simulated working conditions (pressure fluctuation ±5%)
Batch sampling: material report (FTIR spectrum analysis) for each batch
Why Choose Our Truck Bearing Seals?
Core Advantages for OEM Manufacturers
Customized design: Customized sealing structure is supported according to axle model (e.g. GM HT6/HU6).
Lightweight solution: 15% weight reduction due to carbon fiber-reinforced rubber
Supply chain assurance: 72-hour urgent delivery, support VMI inventory management
Competitiveness in the maintenance market
Full brand coverage: compatible with SKF, NTN, TIMKEN, and other mainstream bearing models
Quick matching system: provide online model query tool, 3 minutes to lock the replacement parts
Warranty commitment: 18 months ultra-long warranty (free replacement for non-man-made damage)
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