A-15578-P-AI Cone, Tapered Roller Bearing

One New Aftermarket Replacement Cone, Tapered Roller Bearing - 15578 (A-15578-P-AI)

This is a single cone (inner ring assembly) for a 15578 series imperial tapered roller bearing. The cone pairs with a compatible 15520 cup (outer ring, sold separately) to form a complete single-row tapered roller bearing capable of supporting both radial and axial loads. Typically mounted in opposing pairs on a shaft, this bearing is used in wheel hubs, axles, transfer case output shafts, and a wide range of agricultural, construction, and industrial equipment applications.

Specifications

• Bore (Inner Diameter): 1.000" (25.4 mm)
• Cone Width: 0.687" (17.46 mm)
• Cup Outer Diameter (when assembled with 15520): 2.250" (57.15 mm)
• Corner Radius: 0.05"
• Cage: Stamped steel
• Material: Chrome steel
• Tolerance Class: ABEC 1 (P0/PN2)
• Type: Single cone (inner ring) only - cup sold separately

Compatible Applications

This is a universal imperial tapered roller bearing cone used across many equipment types and brands. Common applications include wheel hubs, front axle assemblies, rear axle shafts, and transfer case output shafts in agricultural, construction, lawn and garden, and industrial equipment. Verify bore, width, and cup outer diameter against your application before ordering.

Replaces Part Number(s):

A-15578-P-AI, 15578

Aftermarket Interchange Numbers

15578, 15578/20, 15578/15520, 15578-15520. Matching cup number: 15520.

New aftermarket replacement part - not remanufactured, not used.