chrome steel material ball bearing

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

Chrome steel material ball bearings are a type of bearing that utilizes chrome steel, specifically AISI 52100, as the primary material for their construction. Here's a detailed introduction to these bearings:

1. Material Properties:

• Chrome steel, also known as AISI 52100 or 100Cr6, is a high carbon, chromium-containing low alloy steel that is through-hardening and is particularly noted for its use in bearings。

• It has a chemical composition that includes high carbon and about 1.5% chromium content, which gives it high wear resistance and rolling fatigue strength。

• The hardness of chrome steel can range from 60-67 on the Rockwell hardness scale (Rc) at room temperature, providing superior hardness and high carbon chrome alloy properties。

2. Advantages:

• Chrome steel bearings offer a cost-effective solution compared to other materials like stainless steel. They operate continuously at temperatures up to 120°C and are known for their durability, especially in dry environments or applications with low corrosion demands。

• These bearings are used to produce precision ball bearings and roller bearings, offering a long working life due to their material properties。

3. Applications:

• Chrome steel ball bearings are widely used in various industries such as automotive, aerospace, and industrial machinery. They are essential components in applications like automobile components, structural and aesthetic elements in healthcare facilities, and low-temperature ball bearing applications。

• They can handle high loads and minimize friction, ensuring smooth operation, which is crucial in precision machinery and equipment。

4. Manufacturing Process:

• The raw steel used to produce high precision miniature bearings undergoes additional melting steps, resulting in a very uniform fine grain material structure. This allows the bearing contact surfaces to be super finished very smooth, contributing to their quiet operation。

• The most common heat treating method for chrome steel is through hardening in a controlled atmosphere furnace. This process gives the finished bearing components high strength to resist cracking and a hard surface to resist subsurface rolling contact fatigue。

5. Corrosion Resistance:

• While chrome steel doesn't have the same level of corrosion resistance as stainless steel, the chromium content forms a protective oxide layer that helps resist rust in moderate conditions。

• To enhance corrosion resistance, the surfaces of the bearings must be protected with a coating of rust inhibitor or oil to prevent oxidation。

6. High-Temperature Applications:

• Bearings manufactured from chrome steel can be heat stabilized to operate at higher temperatures. By varying the heat treating process, bearings can be produced to operate at temperatures of 220°C and higher. However, this elevated tempering treatment can reduce the hardness of the material and the load-carrying capacity of the bearing。

In summary, chrome steel material ball bearings are valued for their high hardness, wear resistance, and cost-effectiveness. They are a popular choice in applications requiring high load capacity, low-noise operation, and long operating life. Despite their limited corrosion resistance, they are suitable for a wide range of industrial applications where strength and durability are paramount.

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