Power Train Components 387AS Tapered Roller Bearing Inner Race Cup and Cone Set

The Power Train Components 387AS is a precision-engineered tapered roller bearing designed for demanding wheel hub, trailer axle, and drivetrain applications. Tapered roller bearings like the 387AS are engineered to handle both radial and thrust loads simultaneously, making them a standard choice for trailer hubs, light truck axles, and industrial wheel end assemblies.

Key Features:

• Tapered Roller Design: Handles combined radial and axial (thrust) loads for long service life under heavy-duty conditions
• Precision Ground Races: Tight tolerances ensure smooth rotation, minimal heat buildup, and consistent load distribution
• High-Quality Steel Construction: Through-hardened bearing steel resists wear, fatigue, and deformation under load
• Industry-Standard 387AS Dimensions: Direct replacement for OEM and aftermarket wheel hub assemblies using the 387AS specification
• Wide Application Range: Compatible with trailer axles, light-duty truck wheel hubs, and various powersport and RV applications

The 387AS designation is an industry-standard AFBMA bearing number, ensuring cross-compatibility with bearings from multiple manufacturers. This makes the Power Train Components 387AS a reliable and cost-effective replacement for worn or damaged wheel end bearings. Always replace bearings in axle pairs and repack with fresh high-temperature wheel bearing grease upon installation.