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Timken 25578 Tapered Roller Bearing Cone – High-Strength Inner Race for Heavy-Duty Load Applications
The Timken 25578 is a tapered roller bearing cone (inner race) with a 1.6875-inch (1-11/16in) inner diameter, designed for use in wheel hubs, axle assemblies, gearboxes, and powertrain systems where combined radial and axial load support is critical. When paired with the matching cup, typically Timken 25520, it forms a complete tapered roller bearing set trusted in both OEM and replacement applications.
Made from premium Timken bearing steel, the 25578 features precision-ground tapered rollers and a hardened raceway for reduced friction, consistent roller alignment, and extended service life. This bearing is built to perform in high-load, high-speed, and demanding environments across automotive, heavy-duty, and industrial sectors.
Choose the Timken 25578 Bearing Cone for durable construction, accurate fit, and proven performance in critical mechanical assemblies.
1–3 Days in Most States
Bulk Discounts Available
OEM-Approved Lubricants
Fleets & Operators
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