31318

The 31318 Single Row Tapered Roller Bearing is a metric series component specifically engineered to handle significant combined radial and single-direction axial loads. This widely used bearing type features a separable design, consisting of a cone assembly (inner ring with rollers and cage) and a cup (outer ring). With main dimensions typically 90 mm bore, 190 mm outside diameter, and 46.5 mm total width, the 31318 offers reliable performance for a variety of demanding industrial applications. Its conical geometry ensures low operational friction and supports the high load capacity necessary for durable, long-term service life.

This bearing is most often mounted in opposing pairs-such as in an X or O arrangement-to effectively support axial loads from both directions and achieve a rigid shaft assembly. The component separation simplifies the mounting, dismounting, and general maintenance processes, a key advantage in complex machinery. Typical applications for the 31318 bearing include vehicle wheel hubs, gear reduction units, various industrial transmissions, and heavy-duty construction equipment, where its robust design reliably manages challenging load combinations and operating conditions.

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