30318-A Single Row Tapered Roller Bearing 90x190x46.5mm Heavy Load For Heavy Truck Axle Construction Machinery

30318-A is metric single-row tapered roller bearing with upgraded A-type internal geometry, overall dimension 90×190×46.5mm. With large contact angle and separable inner & outer rings, it efficiently bears heavy combined radial and one-way axial loads. Made of premium GCr15 bearing steel, it features outstanding rigidity, wear resistance and stable rotation performance, perfectly suited for heavy-duty vehicles, construction and agricultural machinery under harsh working conditions.

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• A optimized internal design improves overall rigidity and load capacity compared with standard 30318
• Large contact angle design withstands heavy radial + unidirectional axial composite loads
• Separable cone and cup, convenient for installation, disassembly and clearance adjustment
• High purity chrome steel body, low friction, excellent wear resistance and long service life
• Stable running performance, adaptable to heavy-load, dusty and severe working environments

• Widely used in heavy-duty truck axles
• wheel hubs
• gearboxes
• construction machinery
• agricultural equipment and mining machinery transmission systems.

*Check matched bearing models to complete your mechanical assembly.

• 30 years professional bearing industry experience
• ISO certified strict quality inspection
• Flexible OEM & private label customization
• 3-5 days fast delivery for stocked bearings
• Full bearing series, universal interchangeable size
• Factory direct price & reliable after-sales service

*Contact us anytime for technical parameter consultation & selection guidance.