Industrial ATRAFLEX A2 HUB RSB Hub Coupling is a stainless-steel A-Series jaw-coupling hub designed for ATRAFLEX assemblies with a rough-stock bore (RSB). This A2-size hub accepts input bores from 1/2 in to 1-15/16 in (through-bore length 1.79 in) and features a 3.375 in outside diameter, 3.07 in hub diameter, and a 4.4 lb weight, using a setscrew locking method. Rated for up to 13,000 rpm and a maximum torque of 2,205 in-lb, it is intended for high-speed power transmission where precise alignment and reliable torque transfer are required in industrial drives and conveyors.
