Steel ball bearings are common components in industrial machinery and are used to withstand and transmit motion forces. When manufacturing these bearings, choosing the right steel is critical because it directly affects the performance, life, and cost of the bearing.

GCR151 is a widely used professional steel that is often used to manufacture steel ball bearings. Its high hardness, high wear resistance and good fatigue resistance make it an ideal choice.

Specifically, the 6304 model steel ball bearing usually uses 9.525*7 steel ball sizes, while the 201 model uses 5.95 size steel balls. These two types of steel ball bearings perform well in complex working environments or situations with heavy loads, mainly due to the selected GCR15 steel material.

In addition, GCR15 also has good heat treatment properties, and its strength and toughness can be further improved through appropriate heat treatment processes. This is especially important for bearings that need to operate in high temperature environments.

However, choosing the most suitable steel ball bearing is not just about the choice of material. Other factors need to be considered, such as bearing design, lubrication method, working environment and load. These factors will affect the performance and life of the bearing.

Overall, GCR15 is a very suitable steel for making steel ball bearings. Its excellent physical properties, wear resistance and fatigue resistance make it the first choice for many industrial applications. However, when selecting steel ball bearings, in addition to materials, other relevant factors need to be considered to ensure that the selected bearings can best meet the needs of the actual working environment.