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$20.00
NTN 4T-387AS Tapered Roller Bearing Cone – Precision-Engineered Cone for Axle, Hub, and Transmission Applications
The NTN 4T-387AS is a tapered roller bearing cone designed to deliver high performance in heavy-duty automotive and industrial applications. With a 57.15 mm inner diameter and 96.838 mm outer diameter (when paired with the correct cup), this cone is engineered for use in axles, wheel hubs, gearboxes, and driveline assemblies.
Part of NTN’s 4T (Tough) series, the 4T-387AS features optimized geometry and precision-machined raceways for enhanced roller contact, superior load distribution, and reduced friction. It supports both radial and axial loads, ensuring reliable operation under high stress and continuous use.
Manufactured from high-strength, case-hardened bearing steel, this cone offers excellent resistance to wear, fatigue, and thermal expansion, even in harsh operating environments.
Engineers and maintenance professionals trust the NTN 4T-387AS for its OEM-grade quality, exact fitment, and long-lasting durability in critical bearing assemblies.
1–3 Days in Most States
Bulk Discounts Available
OEM-Approved Lubricants
Fleets & Operators
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