Caterpillar 1T-0776 Hub

Caterpillar 1T-0776 Hub (Cat part numbers 1T-0776, CAT 1T0776, and 2J6961 A) is a replacement hub component used in Caterpillar equipment, identified by the 1T-0776 designation in Cat's parts catalogs and distributor listings. This hub serves as the central mounting/connection point in rotating assemblies, providing a stable interface between shafts and accompanying components such as flanges, gears, or wheels, and it is designed to preserve alignment under typical operating loads of heavy machinery. Cross-references like 2J6961 A indicate an alternate Cat listing used by suppliers to ensure compatibility across Cat powertrains and attachments. Availability through Caterpillar's official parts channels and authorized distributors helps ensure genuine Cat quality and a correct fit for cataloged applications. When replacing a hub of this type, users should verify the hub bore, bolt circle, and overall diameter against the machine's service documentation and the Caterpillar parts catalog to confirm exact compatibility, as specifications can vary with model and production year. This part is cataloged for use in Cat assemblies and is typically handled by technicians familiar with Cat maintenance procedures, with installation following standard torque and alignment practices outlined in the appropriate service manuals.