FD & FC Eccentric Shaft Pulley Hub

FD and FC Eccentric Shaft Pulley Hub, a high-performance, 4140 chromoly hub designed for Mazda rotary engines (FC/FD models), featuring a black nitride finish for corrosion resistance and durability. These hubs are designed for use with underdriven multi-rib pulley kits. Material: 4140 Chromoly steel for superior strength. Finish: Black nitride coating. Application: Mazda Rotary FC/FD Eccentric Shafts. Usage: Often part of a complete underdriven, multi-rib, or racing pulley kit setup. Mazda N3C1-11-400G equivalent. The hub is designed to securely mount the pulley to the front of the engine’s eccentric shaft, reducing belt slip and improving reliability under racing conditions. Suits Rotary Engine builds, utilising FC and FD E Shaft.