Product Name: 12X2h4a Gear Shaft-Spline Shaft/Eje De Engranaje-Eje Estriado Model NO.: OE-036 Type: Circular Gear Material: 20Cr2Ni4 Toothed Portion Shape: Spur Gear Manufacturing Method: Cut Gear Gear Position: External Gear Hardness: Hardened Tooth Surface Application: Motor, Machinery, Agricultural Machinery, Car Heat Treatment: Cemented/Carburizing Surface Hardness: 58-62 HRC Gear Accuracy Grade: 6-7 Grade (Agma 11-12 Grade) Trademark: OEM Transport Package: Export Wooden Packing Specification: Alloy Steel Origin: China HS Code: 8483409000 Product Description 12X2H4A Gear Shaft-Spline Shaft/Eje de engranaje-Eje estriadoMaterial20Cr2Ni4Gear TypeHelical GearTeeth Hobbing√Teeth Grinding√Heat TreatmentCarburizingSurface Hardness58-62 HRCSpline Milling√Spline Grinidng√Gear Teeth Milling, Gear Teeth HobbingGear Teeth GrindingSpline MillingSpline GrindingCustom made parts, we are making parts accordig to custom drawings or samples.The engineering software we are using: AutoCAD, SolidworksEngineers severices also available