Detailed Product Description Gears and Shafts Features: 1) High quality gears and gear shafts for combine harvesters2)Big size ,or size as customer request3) Materials: alloy steel, carbon and stainless steel 4) Process: forged5) All kinds of gears and shafts, like spur gears, spiral bevel gears, helical gears, pinion shafts, jackshafts, countershafts, and drive shafts available