A-055278-AI Bearing (25580)

One New Aftermarket Replacement Tapered Roller Bearing Cone (25580)

This tapered roller bearing cone is an industry-standard imperial taper roller bearing used in trailer wheel hubs, axle assemblies, and a wide range of agricultural and industrial equipment. Designed to handle both radial and axial loads, it provides smooth, reliable rotation in demanding applications.

Specifications

• Bearing Type: Tapered Roller Bearing Cone (TS – Tapered Single, Imperial)
• Series: 25500
• Bore Diameter (ID): 1.750 in
• Overall Width: 1.000 in
• Material: Chrome Steel
• Cage Material: Steel
• ABMA Precision Rating: Class 2
• Finish: Uncoated
• Operating Temperature Range: -65 to +250 degrees F
• Compatible Cups (sold separately): 25519, 25520, 25521, 25521B, 25522, 25523, 25524, 25526

Common Applications

Inner bearing for trailer axles rated 5,200 lb to 8,000 lb; outer bearing for heavier 9,000 lb to 10,000 lb axles. Widely used in agricultural equipment, construction equipment, and trailer wheel end assemblies.

Replaces Part Number(s):

A-055278-AI, 055278, 25580

New aftermarket replacement part – not remanufactured, not used.