Step shaft is a shaft with multiple cylinders of different diameters connected together like steps. In fact, the outer ring and plane turning constitute the turning of the stepped shaft, so it is very important to consider the dimensional accuracy and step length requirements of the outer ring when turning.

Main parameters of Step Shaft

A：≤Φ1500mm B：≤Φ900mm C：≤Φ900mm

Common technical standards of Step Shaft

A: GB/T3077 EN10083 EN10084 EN10085 JB/T6395

B: JB/T1265~1271

C: JB/T3733 JB/T4120 JB/T6393

Typical steel grades of Step Shaft

A: 18CrNiMo7-6, 17CrNiMo6, 20CrNi2Mo, 20CrMnTi, 34CrNiMo6, 30CrNiMo8, 20CrNiMo, 40CrNiMo, 35CrMo, 42CrMo

B: 35CrMo, 35CrMoV, 34CrMo1A, 20SiMn, 16Mn, 34CrNi1Mo, 34CrNi2Mo, 34CrNi3Mo

C: 9Cr2Mo, 70Cr3Mo, MC3, MC5, etc.

Applications of Step Shaft

A stepped steel shaft is also called a forged step shaft. This type of shaft is created through a special forging process that shapes it into a series of steps, that gradually increase in diameter from one end of the shaft to the other. The forging step shaft is widely used in various industrial applications, including gear shafts, transmission shafts, rolls, motor rotation shafts for high-speed trains and rail transit, and petroleum machinery among others. One of the significant advantages of the shaft forging process is that it can effectively eliminate defects and improve the mechanical properties of steels, making the forged step shaft a popular choice for various industrial applications.