Custom Gears / Assemblies You don’t want to choose between quality and competitive price. That’s why Fairfield offers both, along with unmatched service before and after the sale. We have the broadest range of capabilities offered in the industry, coupled with an advanced approach to engineering, and the right custom gear or custom assembly for your application. With well over 1,000 machine tools at our fingertips, we offer the following gear manufacturing services: * Spur gears (straight and helical) * Bevel gears - straight, helical, and spiral * Ground tooth gearing; spur and helical / internal or external * Hypoid® gears – standard and high ratio * Zerol® gears * Shafts of all types including plain, keyed, splined, or spur * Differentials and differential carrier assemblies * Housings and custom drive assemblies * Tapered serrations * In –House heat treat facility covering all types of heat treatment