87750/87111

The 87750/87111 is a high-precision imperial-sized single row tapered roller bearing designed to manage heavy combined radial and axial loads. Featuring a bore diameter of 190.5 mm (7.5 inches) and an outside diameter of 282.575 mm (11.125 inches), this bearing set consists of the 87750 cone and the 87111 cup. Its internal geometry is engineered to ensure optimal stress distribution across the rollers, which significantly minimizes friction and heat generation during high-speed operations. Built from premium case-carburized steel, it offers the rugged durability required for demanding industrial environments, ensuring a long service life and maintaining shaft rigidity even under significant thrust.

This specific bearing model is widely utilized across heavy-duty sectors, including construction machinery, mining equipment, and large-scale agricultural gearboxes. Because the cone (inner ring) and cup (outer ring) are separable, the 87750/87111 allows for simplified mounting and maintenance routines. Its ability to handle intense axial loads in one direction makes it an ideal choice for wheel hubs and transmission systems where stability is critical. Whether you are replacing a Timken, SKF, or NTN equivalent, this bearing provides the dimensional accuracy and high load capacity needed to reduce downtime and improve the mechanical efficiency of your power transmission systems.

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