Rexnord 1080-T31 35 SHAFT HUB RSB 0258640 Shaft Hub

Rexnord Falk 1080T31/35 Shaft Hub RSB, part number 0258640, is a straight-bore, small-through-hole hub designed for the T31/T35 grid coupling family. This rough-stock bore (RSB) hub ships un-bored so you can machine the bore to your exact shaft size, a common practice for field-fit drives. The hub is constructed from steel and features an outer diameter of 4.81 in and a through bore range of 1.062 in to 3.500 in, enabling compatibility with a wide spectrum of shaft diameters. The overall length is 3.50 in on the shaft-hub section and the corresponding 3.50 in T-hub length through bore, with a hub diameter of 4.12 in for the T-hub, supporting stable alignment under load. This 1080T31/35 RSB hub is intended for use with Rexnord Steelflex grid-couplings, providing a robust connection between a driver and driven shaft in industrial power-transmission applications. Typical applications include conveyors, pumps, mixers, and other machinery where precise bore sizing is achieved by customer machining, and where reliable torque transfer and misalignment accommodation are required. Brand: Falk (Rexnord).