Rexnord 91040703 Coupling 62DBZ-B-0.625-0.625

Rexnord 91040703 is a Thomas DBZ-B size 62 disc coupling. It uses two hubs with a 0.625-inch bore on each end, configured as 62DBZ-B-0.625-0.625, and it accepts a 3/16-inch by 3/32-inch keyway (KW) to locate the hubs to shafts. This part belongs to Rexnord’s Thomas DBZ disc-coupling family, a modular, shaft-to-shaft connection designed for rotating equipment, and the 91040703 designation identifies the specific DBZ-B configuration within the Rexnord catalog, enabling selection alongside compatible DBZ components such as hubs and inserts in the same family. The combination of identical bores and a defined keyway ensures proper shaft alignment and secure attachment when mating with compatible shafts and keys, making this a compact, DBZ-style coupling intended for power-transmission applications requiring a 0.625-inch bore and a 3/16 x 3/32 KW.