Effect of raw material defects on the quality of GCr10 stainless steel balls

- Nov 24, 2018 -

The GCr10 stainless steel ball is the rolling element that carries the load in the ball bearing and is one of the most critical parts in the ball bearing. Depending on the type and application of the bearing, the materials used to manufacture the rolling bearing parts usually include high carbon chromium bearing steel and stainless bearing steel.

Since the quality of raw materials has a significant impact on bearing life and performance, and the quality of GCr10 stainless steel balls depends to a large extent on the quality of the steel, each batch of steel must be inspected according to technical standards before production is put into production. Analyze the chemical composition and metallographic structure of raw materials. The main defects of raw materials are cracks, folds, scratches, and the like.

At the same time, it is necessary to check the hardness and surface quality of the raw materials of GCr10 stainless steel balls, to understand the defects of raw materials, the reasons for their formation and their influence on performance. For the time being, GCr10 stainless steel ball failure is mainly affected by surface defects of raw materials, low-order tissue defects and microstructure defects, in addition to operating conditions.