Bus Wheel-End & Axle Components: Hub Oil Seals, Bearings & Wheel Bolts for Fleet Safety

June 9, 2026

Wheel-End & Axle Components: The Foundation of Bus Fleet Reliability

Wheel-end and axle components bear the full weight of the vehicle while rotating at highway speeds. A single wheel-end failure can cause catastrophic loss of control. That is why fleet maintenance managers prioritize quality wheel hubs, bearings, oil seals, and fasteners — the parts that literally keep your buses rolling safely.

Wheel Hub Oil Seals: The First Line of Defense

Seal Type	Specifications
SKF Meritor Seals	FKM fluorine rubber, 120x160x27mm, double-lip dynamic sealing, 0.5MPa rated, high-temperature and acid-alkali resistant
COMET Memory Alloy Seals	Memory alloy spring technology, 1M km maintenance-free, ConMet 505/510/525 series compatible
Meritor Axle Seals	HNBR material, stainless steel skeleton, weather resistant, maintenance-free design, 393-0273 / 3104-00216
Double-Lip Hub Seals	Main lip prevents oil leakage, secondary lip blocks contaminants, anti-error end face, long-life rubber
HanDe Axle Seals	155x180x22mm, galvanized low-carbon steel frame, compatible with 425-525 series axles

Wheel Hub Bearings

Tapered Roller Bearings: 7517E / 32217 types, high carbon chromium steel, double-sided seals, 300k km service life, -40C to 120C
Deep Groove Ball Bearings: SKF 6216-2Z-C3, SUJ2 steel, impact resistant, direct cross-model replacement
Bearing Housings: 800MPa cast iron, 30M revolution fatigue life, Shanghai Diesel R series compatible

Wheel Fasteners: Small Parts, Big Responsibility

Component	Specifications
Wheel Bolts	40Cr/42CrMo alloy steel, 10.9 grade, 22x104mm to 27x405mm, 1M cycle fatigue, ISO 898-1, 280-320Nm torque
Wheel Nuts & Gaskets	M20x1.5 / M22x1.5 threads, 130-150Nm torque, phosphated anti-corrosion, complete fastener kits
ConMet Axle Bolts	High-strength alloy steel, phosphate coated, precision dimensional control, simulated fatigue tested
Dana Bridge Bolts	1M cycle fatigue, GB/T 17485, ECE R117 certified, Dongfeng Dana axle compatible

Axle & Differential Components

Differential Oil Seals: Stainless steel skeleton, maintenance-free, exclusive for Meritor, standardized installation
Drive Shaft Cross Joints: 47x140mm EQ153, 47.5x135mm QC4000-02, shear pin safety structure, non-metallic bushings
Universal Joints: 8000Nm rated torque, 4000rpm max speed, 500k cycle fatigue, austempered heat treatment
Fan Drive Shafts: 550mm length, double U-joint design, integrally forged flange, fluororubber sealed

Quality Assurance

Material Certifications: Every batch of steel traceable to mill certificates
Dimensional Inspection: 100% measurement of critical dimensions
Surface Treatment: Phosphating, galvanizing, Dacromet, zinc-nickel — matched to application requirements
Fatigue Testing: Simulated load cycles exceeding rated specifications
Packaging: Rust-proof wrapping, custom cartons, palletized for export

Don't compromise on wheel-end safety. Contact us for complete wheel-end and axle component catalogs with cross-reference to OEM part numbers. Competitive pricing, inventory availability, and worldwide shipping.

Contact Person :	Mr. Wu Zexing
Tel :	+86 13851550369